1 /* 2 * Copyright (c) 2011, 2025, 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 "classfile/classLoaderData.inline.hpp" 25 #include "classfile/javaClasses.inline.hpp" 26 #include "classfile/stringTable.hpp" 27 #include "classfile/symbolTable.hpp" 28 #include "classfile/systemDictionary.hpp" 29 #include "classfile/vmClasses.hpp" 30 #include "code/scopeDesc.hpp" 31 #include "compiler/compileBroker.hpp" 32 #include "compiler/compilerEvent.hpp" 33 #include "compiler/compilerOracle.hpp" 34 #include "compiler/disassembler.hpp" 35 #include "compiler/oopMap.hpp" 36 #include "interpreter/bytecodeStream.hpp" 37 #include "interpreter/linkResolver.hpp" 38 #include "interpreter/oopMapCache.hpp" 39 #include "jfr/jfrEvents.hpp" 40 #include "jvmci/jvmciCodeInstaller.hpp" 41 #include "jvmci/jvmciCompilerToVM.hpp" 42 #include "jvmci/jvmciRuntime.hpp" 43 #include "logging/log.hpp" 44 #include "logging/logTag.hpp" 45 #include "memory/oopFactory.hpp" 46 #include "memory/universe.hpp" 47 #include "oops/constantPool.inline.hpp" 48 #include "oops/instanceKlass.inline.hpp" 49 #include "oops/instanceMirrorKlass.hpp" 50 #include "oops/method.inline.hpp" 51 #include "oops/objArrayKlass.inline.hpp" 52 #include "oops/typeArrayOop.inline.hpp" 53 #include "prims/jvmtiExport.hpp" 54 #include "prims/methodHandles.hpp" 55 #include "prims/nativeLookup.hpp" 56 #include "runtime/arguments.hpp" 57 #include "runtime/atomic.hpp" 58 #include "runtime/deoptimization.hpp" 59 #include "runtime/fieldDescriptor.inline.hpp" 60 #include "runtime/frame.inline.hpp" 61 #include "runtime/globals_extension.hpp" 62 #include "runtime/interfaceSupport.inline.hpp" 63 #include "runtime/jniHandles.inline.hpp" 64 #include "runtime/keepStackGCProcessed.hpp" 65 #include "runtime/reflection.hpp" 66 #include "runtime/stackFrameStream.inline.hpp" 67 #include "runtime/timerTrace.hpp" 68 #include "runtime/vframe.inline.hpp" 69 #include "runtime/vframe_hp.hpp" 70 #if INCLUDE_JFR 71 #include "jfr/jfr.hpp" 72 #endif 73 74 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) { 75 _thread = thread; 76 _klass = klass; 77 if (klass != nullptr) { 78 _holder = Handle(_thread, klass->klass_holder()); 79 } 80 } 81 82 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) { 83 _klass = klass; 84 if (klass != nullptr) { 85 _holder = Handle(_thread, klass->klass_holder()); 86 } 87 return *this; 88 } 89 90 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) { 91 if (!JVMCIENV->is_hotspot()) { 92 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller)); 93 } 94 } 95 96 static void requireNotInHotSpot(const char* caller, JVMCI_TRAPS) { 97 if (JVMCIENV->is_hotspot()) { 98 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from HotSpot", caller)); 99 } 100 } 101 102 class JVMCITraceMark : public StackObj { 103 const char* _msg; 104 public: 105 JVMCITraceMark(const char* msg) { 106 _msg = msg; 107 JVMCI_event_2("Enter %s", _msg); 108 } 109 ~JVMCITraceMark() { 110 JVMCI_event_2(" Exit %s", _msg); 111 } 112 }; 113 114 class JavaArgumentUnboxer : public SignatureIterator { 115 protected: 116 JavaCallArguments* _jca; 117 arrayOop _args; 118 int _index; 119 120 Handle next_arg(BasicType expectedType); 121 122 public: 123 JavaArgumentUnboxer(Symbol* signature, 124 JavaCallArguments* jca, 125 arrayOop args, 126 bool is_static) 127 : SignatureIterator(signature) 128 { 129 this->_return_type = T_ILLEGAL; 130 _jca = jca; 131 _index = 0; 132 _args = args; 133 if (!is_static) { 134 _jca->push_oop(next_arg(T_OBJECT)); 135 } 136 do_parameters_on(this); 137 assert(_index == args->length(), "arg count mismatch with signature"); 138 } 139 140 private: 141 friend class SignatureIterator; // so do_parameters_on can call do_type 142 void do_type(BasicType type) { 143 if (is_reference_type(type)) { 144 _jca->push_oop(next_arg(T_OBJECT)); 145 return; 146 } 147 Handle arg = next_arg(type); 148 int box_offset = java_lang_boxing_object::value_offset(type); 149 switch (type) { 150 case T_BOOLEAN: _jca->push_int(arg->bool_field(box_offset)); break; 151 case T_CHAR: _jca->push_int(arg->char_field(box_offset)); break; 152 case T_SHORT: _jca->push_int(arg->short_field(box_offset)); break; 153 case T_BYTE: _jca->push_int(arg->byte_field(box_offset)); break; 154 case T_INT: _jca->push_int(arg->int_field(box_offset)); break; 155 case T_LONG: _jca->push_long(arg->long_field(box_offset)); break; 156 case T_FLOAT: _jca->push_float(arg->float_field(box_offset)); break; 157 case T_DOUBLE: _jca->push_double(arg->double_field(box_offset)); break; 158 default: ShouldNotReachHere(); 159 } 160 } 161 }; 162 163 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) { 164 assert(_index < _args->length(), "out of bounds"); 165 oop arg=((objArrayOop) (_args))->obj_at(_index++); 166 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch"); 167 return Handle(Thread::current(), arg); 168 } 169 170 // Bring the JVMCI compiler thread into the VM state. 171 #define JVMCI_VM_ENTRY_MARK \ 172 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \ 173 ThreadInVMfromNative __tiv(thread); \ 174 HandleMarkCleaner __hm(thread); \ 175 JavaThread* THREAD = thread; \ 176 debug_only(VMNativeEntryWrapper __vew;) 177 178 // Native method block that transitions current thread to '_thread_in_vm'. 179 // Note: CompilerThreadCanCallJava must precede JVMCIENV_FROM_JNI so that 180 // the translation of an uncaught exception in the JVMCIEnv does not make 181 // a Java call when __is_hotspot == false. 182 #define C2V_BLOCK(result_type, name, signature) \ 183 JVMCI_VM_ENTRY_MARK; \ 184 ResourceMark rm; \ 185 bool __is_hotspot = env == thread->jni_environment(); \ 186 bool __block_can_call_java = __is_hotspot || !thread->is_Compiler_thread() || CompilerThread::cast(thread)->can_call_java(); \ 187 CompilerThreadCanCallJava ccj(thread, __block_can_call_java); \ 188 JVMCIENV_FROM_JNI(JVMCI::compilation_tick(thread), env); \ 189 190 // Entry to native method implementation that transitions 191 // current thread to '_thread_in_vm'. 192 #define C2V_VMENTRY(result_type, name, signature) \ 193 result_type JNICALL c2v_ ## name signature { \ 194 JavaThread* thread = JavaThread::current_or_null(); \ 195 if (thread == nullptr) { \ 196 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \ 197 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \ 198 return; \ 199 } \ 200 C2V_BLOCK(result_type, name, signature) \ 201 JVMCITraceMark jtm("CompilerToVM::" #name); 202 203 #define C2V_VMENTRY_(result_type, name, signature, result) \ 204 result_type JNICALL c2v_ ## name signature { \ 205 JavaThread* thread = JavaThread::current_or_null(); \ 206 if (thread == nullptr) { \ 207 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \ 208 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \ 209 return result; \ 210 } \ 211 C2V_BLOCK(result_type, name, signature) \ 212 JVMCITraceMark jtm("CompilerToVM::" #name); 213 214 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, nullptr) 215 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0) 216 217 // Entry to native method implementation that does not transition 218 // current thread to '_thread_in_vm'. 219 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \ 220 result_type JNICALL c2v_ ## name signature { \ 221 JavaThread* thread = JavaThread::current_or_null(); 222 223 #define C2V_END } 224 225 #define JNI_THROW(caller, name, msg) do { \ 226 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \ 227 if (__throw_res != JNI_OK) { \ 228 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \ 229 } \ 230 return; \ 231 } while (0); 232 233 #define JNI_THROW_(caller, name, msg, result) do { \ 234 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \ 235 if (__throw_res != JNI_OK) { \ 236 JVMCI_event_1("Throwing " #name " in " caller " returned %d", __throw_res); \ 237 } \ 238 return result; \ 239 } while (0) 240 241 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS); 242 243 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env)) 244 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL); 245 return config; 246 } 247 248 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle)) 249 #define RETURN_BOXED_LONG(value) jvalue p; p.j = (jlong) (value); JVMCIObject box = JVMCIENV->create_box(T_LONG, &p, JVMCI_CHECK_NULL); return box.as_jobject(); 250 #define RETURN_BOXED_DOUBLE(value) jvalue p; p.d = (jdouble) (value); JVMCIObject box = JVMCIENV->create_box(T_DOUBLE, &p, JVMCI_CHECK_NULL); return box.as_jobject(); 251 JVMCIObject name = JVMCIENV->wrap(name_handle); 252 if (name.is_null()) { 253 JVMCI_THROW_NULL(NullPointerException); 254 } 255 const char* cstring = JVMCIENV->as_utf8_string(name); 256 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring); 257 if (flag == nullptr) { 258 return c2vm; 259 } 260 if (flag->is_bool()) { 261 jvalue prim; 262 prim.z = flag->get_bool(); 263 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL); 264 return JVMCIENV->get_jobject(box); 265 } else if (flag->is_ccstr()) { 266 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL); 267 return JVMCIENV->get_jobject(value); 268 } else if (flag->is_intx()) { 269 RETURN_BOXED_LONG(flag->get_intx()); 270 } else if (flag->is_int()) { 271 RETURN_BOXED_LONG(flag->get_int()); 272 } else if (flag->is_uint()) { 273 RETURN_BOXED_LONG(flag->get_uint()); 274 } else if (flag->is_uint64_t()) { 275 RETURN_BOXED_LONG(flag->get_uint64_t()); 276 } else if (flag->is_size_t()) { 277 RETURN_BOXED_LONG(flag->get_size_t()); 278 } else if (flag->is_uintx()) { 279 RETURN_BOXED_LONG(flag->get_uintx()); 280 } else if (flag->is_double()) { 281 RETURN_BOXED_DOUBLE(flag->get_double()); 282 } else { 283 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string()); 284 } 285 #undef RETURN_BOXED_LONG 286 #undef RETURN_BOXED_DOUBLE 287 C2V_END 288 289 // Macros for argument pairs representing a wrapper object and its wrapped VM pointer 290 #define ARGUMENT_PAIR(name) jobject name ## _obj, jlong name ## _pointer 291 #define UNPACK_PAIR(type, name) ((type*) name ## _pointer) 292 293 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 294 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 295 296 int code_size = method->code_size(); 297 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size); 298 299 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten"); 300 // iterate over all bytecodes and replace non-Java bytecodes 301 302 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) { 303 Bytecodes::Code code = s.code(); 304 Bytecodes::Code raw_code = s.raw_code(); 305 int bci = s.bci(); 306 int len = s.instruction_size(); 307 308 // Restore original byte code. 309 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code); 310 if (len > 1) { 311 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1); 312 } 313 314 if (len > 1) { 315 // Restore the big-endian constant pool indexes. 316 // Cf. Rewriter::scan_method 317 switch (code) { 318 case Bytecodes::_getstatic: 319 case Bytecodes::_putstatic: 320 case Bytecodes::_getfield: 321 case Bytecodes::_putfield: 322 case Bytecodes::_invokevirtual: 323 case Bytecodes::_invokespecial: 324 case Bytecodes::_invokestatic: 325 case Bytecodes::_invokeinterface: 326 case Bytecodes::_invokehandle: { 327 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1)); 328 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index); 329 break; 330 } 331 332 case Bytecodes::_invokedynamic: { 333 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1)); 334 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index); 335 break; 336 } 337 338 default: 339 break; 340 } 341 342 // Not all ldc byte code are rewritten. 343 switch (raw_code) { 344 case Bytecodes::_fast_aldc: { 345 int cpc_index = reconstituted_code[bci + 1] & 0xff; 346 int cp_index = method->constants()->object_to_cp_index(cpc_index); 347 assert(cp_index < method->constants()->length(), "sanity check"); 348 reconstituted_code[bci + 1] = (jbyte) cp_index; 349 break; 350 } 351 352 case Bytecodes::_fast_aldc_w: { 353 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1)); 354 int cp_index = method->constants()->object_to_cp_index(cpc_index); 355 assert(cp_index < method->constants()->length(), "sanity check"); 356 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index); 357 break; 358 } 359 360 default: 361 break; 362 } 363 } 364 } 365 366 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL); 367 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size); 368 return JVMCIENV->get_jbyteArray(result); 369 C2V_END 370 371 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 372 Method* method = UNPACK_PAIR(Method, method); 373 return method->exception_table_length(); 374 C2V_END 375 376 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 377 Method* method = UNPACK_PAIR(Method, method); 378 if (method->exception_table_length() == 0) { 379 return 0L; 380 } 381 return (jlong) (address) method->exception_table_start(); 382 C2V_END 383 384 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle)) 385 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL); 386 oop executable = JNIHandles::resolve(executable_handle); 387 oop mirror = nullptr; 388 int slot = 0; 389 390 if (executable->klass() == vmClasses::reflect_Constructor_klass()) { 391 mirror = java_lang_reflect_Constructor::clazz(executable); 392 slot = java_lang_reflect_Constructor::slot(executable); 393 } else { 394 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type"); 395 mirror = java_lang_reflect_Method::clazz(executable); 396 slot = java_lang_reflect_Method::slot(executable); 397 } 398 Klass* holder = java_lang_Class::as_Klass(mirror); 399 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot)); 400 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL); 401 return JVMCIENV->get_jobject(result); 402 } 403 404 C2V_VMENTRY_PREFIX(jboolean, updateCompilerThreadCanCallJava, (JNIEnv* env, jobject, jboolean newState)) 405 return CompilerThreadCanCallJava::update(thread, newState) != nullptr; 406 C2V_END 407 408 409 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset)) 410 Method* method = nullptr; 411 JVMCIObject base_object = JVMCIENV->wrap(base); 412 if (base_object.is_null()) { 413 method = *((Method**)(offset)); 414 } else { 415 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL); 416 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) { 417 method = (Method*) (intptr_t) obj->long_field(offset); 418 } else { 419 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name())); 420 } 421 } 422 if (method == nullptr) { 423 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object))); 424 } 425 assert (method->is_method(), "invalid read"); 426 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL); 427 return JVMCIENV->get_jobject(result); 428 } 429 430 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass_or_method), jboolean is_klass)) 431 ConstantPool* cp = nullptr; 432 if (UNPACK_PAIR(address, klass_or_method) == nullptr) { 433 JVMCI_THROW_NULL(NullPointerException); 434 } 435 if (!is_klass) { 436 cp = (UNPACK_PAIR(Method, klass_or_method))->constMethod()->constants(); 437 } else { 438 cp = InstanceKlass::cast(UNPACK_PAIR(Klass, klass_or_method))->constants(); 439 } 440 441 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL); 442 return JVMCIENV->get_jobject(result); 443 } 444 445 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed)) 446 JVMCIObject base_object = JVMCIENV->wrap(base); 447 if (base_object.is_null()) { 448 JVMCI_THROW_MSG_NULL(NullPointerException, "base object is null"); 449 } 450 451 const char* base_desc = nullptr; 452 JVMCIKlassHandle klass(THREAD); 453 if (offset == 1 /*oopDesc::klass_offset_in_bytes()*/) { 454 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) { 455 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL); 456 klass = base_oop->klass(); 457 } else { 458 goto unexpected; 459 } 460 } else if (!compressed) { 461 if (JVMCIENV->isa_HotSpotConstantPool(base_object)) { 462 ConstantPool* cp = JVMCIENV->asConstantPool(base_object); 463 if (offset == in_bytes(ConstantPool::pool_holder_offset())) { 464 klass = cp->pool_holder(); 465 } else { 466 base_desc = FormatBufferResource("[constant pool for %s]", cp->pool_holder()->signature_name()); 467 goto unexpected; 468 } 469 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) { 470 Klass* base_klass = JVMCIENV->asKlass(base_object); 471 if (offset == in_bytes(Klass::subklass_offset())) { 472 klass = base_klass->subklass(); 473 } else if (offset == in_bytes(Klass::super_offset())) { 474 klass = base_klass->super(); 475 } else if (offset == in_bytes(Klass::next_sibling_offset())) { 476 klass = base_klass->next_sibling(); 477 } else if (offset == in_bytes(ObjArrayKlass::element_klass_offset()) && base_klass->is_objArray_klass()) { 478 klass = ObjArrayKlass::cast(base_klass)->element_klass(); 479 } else if (offset >= in_bytes(Klass::primary_supers_offset()) && 480 offset < in_bytes(Klass::primary_supers_offset()) + (int) (sizeof(Klass*) * Klass::primary_super_limit()) && 481 offset % sizeof(Klass*) == 0) { 482 // Offset is within the primary supers array 483 int index = (int) ((offset - in_bytes(Klass::primary_supers_offset())) / sizeof(Klass*)); 484 klass = base_klass->primary_super_of_depth(index); 485 } else { 486 base_desc = FormatBufferResource("[%s]", base_klass->signature_name()); 487 goto unexpected; 488 } 489 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) { 490 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL); 491 if (base_oop->is_a(vmClasses::Class_klass())) { 492 if (offset == java_lang_Class::klass_offset()) { 493 klass = java_lang_Class::as_Klass(base_oop()); 494 } else if (offset == java_lang_Class::array_klass_offset()) { 495 klass = java_lang_Class::array_klass_acquire(base_oop()); 496 } else { 497 base_desc = FormatBufferResource("[Class=%s]", java_lang_Class::as_Klass(base_oop())->signature_name()); 498 goto unexpected; 499 } 500 } else { 501 if (!base_oop.is_null()) { 502 base_desc = FormatBufferResource("[%s]", base_oop()->klass()->signature_name()); 503 } 504 goto unexpected; 505 } 506 } else if (JVMCIENV->isa_HotSpotMethodData(base_object)) { 507 jlong base_address = (intptr_t) JVMCIENV->asMethodData(base_object); 508 klass = *((Klass**) (intptr_t) (base_address + offset)); 509 if (klass == nullptr || !klass->is_loader_alive()) { 510 // Klasses in methodData might be concurrently unloading so return null in that case. 511 return nullptr; 512 } 513 } else { 514 goto unexpected; 515 } 516 } else { 517 goto unexpected; 518 } 519 520 { 521 if (klass == nullptr) { 522 return nullptr; 523 } 524 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 525 return JVMCIENV->get_jobject(result); 526 } 527 528 unexpected: 529 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 530 err_msg("Unexpected arguments: %s%s " JLONG_FORMAT " %s", 531 JVMCIENV->klass_name(base_object), base_desc == nullptr ? "" : base_desc, 532 offset, compressed ? "true" : "false")); 533 } 534 535 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method))) 536 methodHandle method (THREAD, UNPACK_PAIR(Method, method)); 537 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass)); 538 if (holder->is_interface()) { 539 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name())); 540 } 541 if (method->can_be_statically_bound()) { 542 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name())); 543 } 544 545 methodHandle ucm; 546 { 547 MutexLocker locker(Compile_lock); 548 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method())); 549 } 550 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL); 551 return JVMCIENV->get_jobject(result); 552 C2V_END 553 554 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 555 Klass* klass = UNPACK_PAIR(Klass, klass); 556 if (!klass->is_interface()) { 557 THROW_MSG_NULL(vmSymbols::java_lang_IllegalArgumentException(), 558 err_msg("Expected interface type, got %s", klass->external_name())); 559 } 560 InstanceKlass* iklass = InstanceKlass::cast(klass); 561 JVMCIKlassHandle handle(THREAD, iklass->implementor()); 562 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL); 563 return JVMCIENV->get_jobject(implementor); 564 C2V_END 565 566 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 567 Method* method = UNPACK_PAIR(Method, method); 568 return method->is_ignored_by_security_stack_walk(); 569 C2V_END 570 571 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 572 Method* method = UNPACK_PAIR(Method, method); 573 // Skip redefined methods 574 if (method->is_old()) { 575 return false; 576 } 577 return !method->is_not_compilable(CompLevel_full_optimization); 578 C2V_END 579 580 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 581 methodHandle method (THREAD, UNPACK_PAIR(Method, method)); 582 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline(); 583 C2V_END 584 585 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 586 methodHandle method (THREAD, UNPACK_PAIR(Method, method)); 587 return CompilerOracle::should_inline(method) || method->force_inline(); 588 C2V_END 589 590 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, ARGUMENT_PAIR(accessing_klass), jint accessing_klass_loader, jboolean resolve)) 591 CompilerThreadCanCallJava canCallJava(thread, resolve); // Resolution requires Java calls 592 JVMCIObject name = JVMCIENV->wrap(jname); 593 const char* str = JVMCIENV->as_utf8_string(name); 594 TempNewSymbol class_name = SymbolTable::new_symbol(str); 595 596 if (class_name->utf8_length() <= 1) { 597 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Primitive type %s should be handled in Java code", str)); 598 } 599 600 #ifdef ASSERT 601 const char* val = Arguments::PropertyList_get_value(Arguments::system_properties(), "test.jvmci.lookupTypeException"); 602 if (val != nullptr) { 603 if (strstr(val, "<trace>") != nullptr) { 604 tty->print_cr("CompilerToVM.lookupType: %s", str); 605 } else if (strstr(str, val) != nullptr) { 606 THROW_MSG_NULL(vmSymbols::java_lang_Exception(), 607 err_msg("lookupTypeException: %s", str)); 608 } 609 } 610 #endif 611 612 JVMCIKlassHandle resolved_klass(THREAD); 613 Klass* accessing_klass = UNPACK_PAIR(Klass, accessing_klass); 614 Handle class_loader; 615 if (accessing_klass != nullptr) { 616 class_loader = Handle(THREAD, accessing_klass->class_loader()); 617 } else { 618 switch (accessing_klass_loader) { 619 case 0: break; // class_loader is already null, the boot loader 620 case 1: class_loader = Handle(THREAD, SystemDictionary::java_platform_loader()); break; 621 case 2: class_loader = Handle(THREAD, SystemDictionary::java_system_loader()); break; 622 default: 623 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Illegal class loader value: %d", accessing_klass_loader)); 624 } 625 JVMCIENV->runtime()->initialize(JVMCI_CHECK_NULL); 626 } 627 628 if (resolve) { 629 resolved_klass = SystemDictionary::resolve_or_fail(class_name, class_loader, true, CHECK_NULL); 630 } else { 631 if (Signature::has_envelope(class_name)) { 632 // This is a name from a signature. Strip off the trimmings. 633 // Call recursive to keep scope of strippedsym. 634 TempNewSymbol strippedsym = Signature::strip_envelope(class_name); 635 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym, 636 class_loader); 637 } else if (Signature::is_array(class_name)) { 638 SignatureStream ss(class_name, false); 639 int ndim = ss.skip_array_prefix(); 640 if (ss.type() == T_OBJECT) { 641 Symbol* strippedsym = ss.as_symbol(); 642 resolved_klass = SystemDictionary::find_instance_klass(THREAD, strippedsym, 643 class_loader); 644 if (!resolved_klass.is_null()) { 645 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL); 646 } 647 } else { 648 resolved_klass = Universe::typeArrayKlass(ss.type())->array_klass(ndim, CHECK_NULL); 649 } 650 } else { 651 resolved_klass = SystemDictionary::find_instance_klass(THREAD, class_name, 652 class_loader); 653 } 654 } 655 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL); 656 return JVMCIENV->get_jobject(result); 657 C2V_END 658 659 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jchar type_char, ARGUMENT_PAIR(klass))) 660 JVMCIKlassHandle array_klass(THREAD); 661 Klass* klass = UNPACK_PAIR(Klass, klass); 662 if (klass == nullptr) { 663 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL); 664 if (type == T_VOID) { 665 return nullptr; 666 } 667 array_klass = Universe::typeArrayKlass(type); 668 if (array_klass == nullptr) { 669 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type))); 670 } 671 } else { 672 array_klass = klass->array_klass(CHECK_NULL); 673 } 674 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL); 675 return JVMCIENV->get_jobject(result); 676 C2V_END 677 678 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror)) 679 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL); 680 if (mirror == nullptr) { 681 return nullptr; 682 } 683 JVMCIKlassHandle klass(THREAD); 684 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror)); 685 if (klass == nullptr) { 686 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported"); 687 } 688 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 689 return JVMCIENV->get_jobject(result); 690 C2V_END 691 692 C2V_VMENTRY_NULL(jobject, lookupJClass, (JNIEnv* env, jobject, jlong jclass_value)) 693 if (jclass_value == 0L) { 694 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must not be zero"); 695 } 696 jclass mirror = reinterpret_cast<jclass>(jclass_value); 697 // Since the jclass_value is passed as a jlong, we perform additional checks to prevent the caller from accidentally 698 // sending a value that is not a JNI handle. 699 if (JNIHandles::handle_type(thread, mirror) == JNIInvalidRefType) { 700 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass is not a valid JNI reference"); 701 } 702 oop obj = JNIHandles::resolve(mirror); 703 if (!java_lang_Class::is_instance(obj)) { 704 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "jclass must be a reference to the Class object"); 705 } 706 JVMCIKlassHandle klass(THREAD, java_lang_Class::as_Klass(obj)); 707 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 708 return JVMCIENV->get_jobject(result); 709 C2V_END 710 711 C2V_VMENTRY_0(jlong, getJObjectValue, (JNIEnv* env, jobject, jobject constant_jobject)) 712 requireNotInHotSpot("getJObjectValue", JVMCI_CHECK_0); 713 // Ensure that current JNI handle scope is not the top-most JNIHandleBlock as handles 714 // in that scope are only released when the thread exits. 715 if (!THREAD->has_last_Java_frame() && THREAD->active_handles()->pop_frame_link() == nullptr) { 716 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot call getJObjectValue without Java frame anchor or a pushed JNI handle block")); 717 } 718 JVMCIObject constant = JVMCIENV->wrap(constant_jobject); 719 Handle constant_value = JVMCIENV->asConstant(constant, JVMCI_CHECK_0); 720 jobject jni_handle = JNIHandles::make_local(THREAD, constant_value()); 721 return reinterpret_cast<jlong>(jni_handle); 722 C2V_END 723 724 C2V_VMENTRY_NULL(jobject, getUncachedStringInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index)) 725 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 726 constantTag tag = cp->tag_at(index); 727 if (!tag.is_string()) { 728 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value())); 729 } 730 oop obj = cp->uncached_string_at(index, CHECK_NULL); 731 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj)); 732 C2V_END 733 734 C2V_VMENTRY_NULL(jobject, lookupConstantInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cp_index, bool resolve)) 735 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 736 oop obj; 737 if (!resolve) { 738 bool found_it; 739 obj = cp->find_cached_constant_at(cp_index, found_it, CHECK_NULL); 740 if (!found_it) { 741 return nullptr; 742 } 743 } else { 744 obj = cp->resolve_possibly_cached_constant_at(cp_index, CHECK_NULL); 745 } 746 constantTag tag = cp->tag_at(cp_index); 747 if (tag.is_dynamic_constant()) { 748 if (obj == nullptr) { 749 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 750 } 751 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(cp_index)); 752 if (!is_reference_type(bt)) { 753 if (!is_java_primitive(bt)) { 754 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL()); 755 } 756 757 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant) 758 jvalue value; 759 jlong raw_value; 760 jchar type_char; 761 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); 762 assert(bt2 == bt, ""); 763 switch (bt2) { 764 case T_LONG: type_char = 'J'; raw_value = value.j; break; 765 case T_DOUBLE: type_char = 'D'; raw_value = value.j; break; 766 case T_FLOAT: type_char = 'F'; raw_value = value.i; break; 767 case T_INT: type_char = 'I'; raw_value = value.i; break; 768 case T_SHORT: type_char = 'S'; raw_value = value.s; break; 769 case T_BYTE: type_char = 'B'; raw_value = value.b; break; 770 case T_CHAR: type_char = 'C'; raw_value = value.c; break; 771 case T_BOOLEAN: type_char = 'Z'; raw_value = value.z; break; 772 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL()); 773 } 774 775 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, raw_value, JVMCI_CHECK_NULL); 776 return JVMCIENV->get_jobject(result); 777 } 778 } 779 #ifdef ASSERT 780 // Support for testing an OOME raised in a context where the current thread cannot call Java 781 // 1. Put -Dtest.jvmci.oome_in_lookupConstantInPool=<trace> on the command line to 782 // discover possible values for step 2. 783 // Example output: 784 // 785 // CompilerToVM.lookupConstantInPool: "Overflow: String length out of range"{0x00000007ffeb2960} 786 // CompilerToVM.lookupConstantInPool: "null"{0x00000007ffebdfe8} 787 // CompilerToVM.lookupConstantInPool: "Maximum lock count exceeded"{0x00000007ffec4f90} 788 // CompilerToVM.lookupConstantInPool: "Negative length"{0x00000007ffec4468} 789 // 790 // 2. Choose a value shown in step 1. 791 // Example: -Dtest.jvmci.oome_in_lookupConstantInPool=Negative 792 const char* val = Arguments::PropertyList_get_value(Arguments::system_properties(), "test.jvmci.oome_in_lookupConstantInPool"); 793 if (val != nullptr) { 794 const char* str = obj->print_value_string(); 795 if (strstr(val, "<trace>") != nullptr) { 796 tty->print_cr("CompilerToVM.lookupConstantInPool: %s", str); 797 } else if (strstr(str, val) != nullptr) { 798 Handle garbage; 799 while (true) { 800 // Trigger an OutOfMemoryError 801 objArrayOop next = oopFactory::new_objectArray(0x7FFFFFFF, CHECK_NULL); 802 next->obj_at_put(0, garbage()); 803 garbage = Handle(THREAD, next); 804 } 805 } 806 } 807 #endif 808 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj)); 809 C2V_END 810 811 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index)) 812 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 813 constantTag tag = cp->tag_at(index); 814 bool is_indy = tag.is_invoke_dynamic(); 815 bool is_condy = tag.is_dynamic_constant(); 816 if (!(is_condy || is_indy)) { 817 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value())); 818 } 819 // Get the indy entry based on CP index 820 int indy_index = -1; 821 if (is_indy) { 822 for (int i = 0; i < cp->resolved_indy_entries_length(); i++) { 823 if (cp->resolved_indy_entry_at(i)->constant_pool_index() == index) { 824 indy_index = i; 825 } 826 } 827 } 828 // Resolve the bootstrap specifier, its name, type, and static arguments 829 BootstrapInfo bootstrap_specifier(cp, index, indy_index); 830 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL); 831 832 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle 833 // to get a DirectMethodHandle from which we can then extract a Method* 834 JavaValue result(T_OBJECT); 835 JavaCalls::call_virtual(&result, 836 bsm, 837 vmClasses::MethodHandle_klass(), 838 vmSymbols::asFixedArity_name(), 839 vmSymbols::asFixedArity_signature(), 840 CHECK_NULL); 841 bsm = Handle(THREAD, result.get_oop()); 842 843 // Check assumption about getting a DirectMethodHandle 844 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) { 845 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name())); 846 } 847 // Create return array describing the bootstrap method invocation (BSMI) 848 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL); 849 850 // Extract Method* and wrap it in a ResolvedJavaMethod 851 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm())); 852 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL); 853 JVMCIENV->put_object_at(bsmi, 0, bsmi_method); 854 855 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL); 856 JVMCIENV->put_object_at(bsmi, 1, bsmi_name); 857 858 Handle type_arg = bootstrap_specifier.type_arg(); 859 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg()); 860 JVMCIENV->put_object_at(bsmi, 2, bsmi_type); 861 862 Handle arg_values = bootstrap_specifier.arg_values(); 863 if (arg_values.not_null()) { 864 if (!arg_values->is_array()) { 865 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values())); 866 } else if (arg_values->is_objArray()) { 867 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values()); 868 int len = args_array->length(); 869 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL); 870 JVMCIENV->put_object_at(bsmi, 3, arguments); 871 for (int i = 0; i < len; i++) { 872 oop x = args_array->obj_at(i); 873 if (x != nullptr) { 874 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x)); 875 } else { 876 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER()); 877 } 878 } 879 } else if (arg_values->is_typeArray()) { 880 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values()); 881 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL); 882 JVMCIENV->put_object_at(bsmi, 3, arguments); 883 for (int i = 0; i < bsci->length(); i++) { 884 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i)); 885 } 886 } 887 } 888 return JVMCIENV->get_jobjectArray(bsmi); 889 C2V_END 890 891 C2V_VMENTRY_0(jint, bootstrapArgumentIndexAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint cpi, jint index)) 892 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 893 return cp->bootstrap_argument_index_at(cpi, index); 894 C2V_END 895 896 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode)) 897 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 898 return cp->name_and_type_ref_index_at(index, (Bytecodes::Code)opcode); 899 C2V_END 900 901 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode)) 902 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 903 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL); 904 return JVMCIENV->get_jobject(sym); 905 C2V_END 906 907 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode)) 908 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 909 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which, (Bytecodes::Code)opcode), JVMCI_CHECK_NULL); 910 return JVMCIENV->get_jobject(sym); 911 C2V_END 912 913 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode)) 914 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 915 return cp->klass_ref_index_at(index, (Bytecodes::Code)opcode); 916 C2V_END 917 918 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index)) 919 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 920 Klass* klass = cp->klass_at(index, CHECK_NULL); 921 JVMCIKlassHandle resolved_klass(THREAD, klass); 922 if (resolved_klass->is_instance_klass()) { 923 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL); 924 if (!InstanceKlass::cast(resolved_klass())->is_linked()) { 925 // link_class() should not return here if there is an issue. 926 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name())); 927 } 928 } 929 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL); 930 return JVMCIENV->get_jobject(klassObject); 931 C2V_END 932 933 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index)) 934 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 935 Klass* loading_klass = cp->pool_holder(); 936 bool is_accessible = false; 937 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass)); 938 Symbol* symbol = nullptr; 939 if (klass.is_null()) { 940 constantTag tag = cp->tag_at(index); 941 if (tag.is_klass()) { 942 // The klass has been inserted into the constant pool 943 // very recently. 944 klass = cp->resolved_klass_at(index); 945 } else if (tag.is_symbol()) { 946 symbol = cp->symbol_at(index); 947 } else { 948 if (!tag.is_unresolved_klass()) { 949 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Expected %d at index %d, got %d", JVM_CONSTANT_UnresolvedClassInError, index, tag.value())); 950 } 951 symbol = cp->klass_name_at(index); 952 } 953 } 954 JVMCIObject result; 955 if (!klass.is_null()) { 956 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 957 } else { 958 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL); 959 } 960 return JVMCIENV->get_jobject(result); 961 C2V_END 962 963 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint which, jint opcode)) 964 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 965 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, which, Bytecodes::Code(opcode)); 966 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop)); 967 C2V_END 968 969 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jbyte opcode, ARGUMENT_PAIR(caller))) 970 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 971 methodHandle caller(THREAD, UNPACK_PAIR(Method, caller)); 972 InstanceKlass* pool_holder = cp->pool_holder(); 973 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF); 974 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder)); 975 JFR_ONLY(if (method.not_null()) Jfr::on_resolution(caller(), method(), CHECK_NULL);) 976 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL); 977 return JVMCIENV->get_jobject(result); 978 C2V_END 979 980 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, ARGUMENT_PAIR(method), jbyte opcode, jintArray info_handle)) 981 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 982 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF); 983 fieldDescriptor fd; 984 methodHandle mh(THREAD, UNPACK_PAIR(Method, method)); 985 986 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF); 987 int holder_index = cp->klass_ref_index_at(index, bc); 988 if (!cp->tag_at(holder_index).is_klass() && !THREAD->can_call_java()) { 989 // If the holder is not resolved in the constant pool and the current 990 // thread cannot call Java, return null. This avoids a Java call 991 // in LinkInfo to load the holder. 992 Symbol* klass_name = cp->klass_ref_at_noresolve(index, bc); 993 return nullptr; 994 } 995 996 LinkInfo link_info(cp, index, mh, code, CHECK_NULL); 997 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL); 998 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle); 999 if (info.is_null() || JVMCIENV->get_length(info) != 4) { 1000 JVMCI_ERROR_NULL("info must not be null and have a length of 4"); 1001 } 1002 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_field_flags()); 1003 JVMCIENV->put_int_at(info, 1, fd.offset()); 1004 JVMCIENV->put_int_at(info, 2, fd.index()); 1005 JVMCIENV->put_int_at(info, 3, fd.field_flags().as_uint()); 1006 JVMCIKlassHandle handle(THREAD, fd.field_holder()); 1007 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL); 1008 return JVMCIENV->get_jobject(field_holder); 1009 C2V_END 1010 1011 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(method))) 1012 Klass* klass = UNPACK_PAIR(Klass, klass); 1013 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 1014 InstanceKlass* holder = method->method_holder(); 1015 if (klass->is_interface()) { 1016 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name())); 1017 } 1018 if (!holder->is_interface()) { 1019 JVMCI_THROW_MSG_0(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())); 1020 } 1021 if (!klass->is_instance_klass()) { 1022 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name())); 1023 } 1024 if (!InstanceKlass::cast(klass)->is_linked()) { 1025 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name())); 1026 } 1027 if (!klass->is_subtype_of(holder)) { 1028 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name())); 1029 } 1030 return LinkResolver::vtable_index_of_interface_method(klass, method); 1031 C2V_END 1032 1033 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, ARGUMENT_PAIR(receiver), ARGUMENT_PAIR(method), ARGUMENT_PAIR(caller))) 1034 Klass* recv_klass = UNPACK_PAIR(Klass, receiver); 1035 Klass* caller_klass = UNPACK_PAIR(Klass, caller); 1036 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 1037 1038 Klass* resolved = method->method_holder(); 1039 Symbol* h_name = method->name(); 1040 Symbol* h_signature = method->signature(); 1041 1042 if (MethodHandles::is_signature_polymorphic_method(method())) { 1043 // Signature polymorphic methods are already resolved, JVMCI just returns null in this case. 1044 return nullptr; 1045 } 1046 1047 if (method->name() == vmSymbols::clone_name() && 1048 resolved == vmClasses::Object_klass() && 1049 recv_klass->is_array_klass()) { 1050 // Resolution of the clone method on arrays always returns Object.clone even though that method 1051 // has protected access. There's some trickery in the access checking to make this all work out 1052 // so it's necessary to pass in the array class as the resolved class to properly trigger this. 1053 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See 1054 // LinkResolver::check_method_accessability for the matching logic. 1055 resolved = recv_klass; 1056 } 1057 1058 LinkInfo link_info(resolved, h_name, h_signature, caller_klass); 1059 Method* m = nullptr; 1060 // Only do exact lookup if receiver klass has been linked. Otherwise, 1061 // the vtable has not been setup, and the LinkResolver will fail. 1062 if (recv_klass->is_array_klass() || 1063 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) { 1064 if (resolved->is_interface()) { 1065 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info); 1066 } else { 1067 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info); 1068 } 1069 } 1070 1071 if (m == nullptr) { 1072 // Return null if there was a problem with lookup (uninitialized class, etc.) 1073 return nullptr; 1074 } 1075 1076 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL); 1077 return JVMCIENV->get_jobject(result); 1078 C2V_END 1079 1080 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 1081 Klass* klass = UNPACK_PAIR(Klass, klass); 1082 assert(klass != nullptr, "method must not be called for primitive types"); 1083 if (!klass->is_instance_klass()) { 1084 return false; 1085 } 1086 InstanceKlass* iklass = InstanceKlass::cast(klass); 1087 return Dependencies::find_finalizable_subclass(iklass) != nullptr; 1088 C2V_END 1089 1090 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 1091 Klass* klass = UNPACK_PAIR(Klass, klass); 1092 if (!klass->is_instance_klass()) { 1093 return nullptr; 1094 } 1095 InstanceKlass* iklass = InstanceKlass::cast(klass); 1096 methodHandle clinit(THREAD, iklass->class_initializer()); 1097 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL); 1098 return JVMCIENV->get_jobject(result); 1099 C2V_END 1100 1101 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr)) 1102 address target_addr = (address) addr; 1103 if (target_addr != nullptr) { 1104 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int)); 1105 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int)); 1106 return MAX2(ABS(off_low), ABS(off_high)); 1107 } 1108 return -1; 1109 C2V_END 1110 1111 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 1112 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 1113 method->set_is_not_c1_compilable(); 1114 method->set_is_not_c2_compilable(); 1115 method->set_dont_inline(true); 1116 C2V_END 1117 1118 C2V_VMENTRY_0(jint, getInstallCodeFlags, (JNIEnv *env, jobject)) 1119 int flags = 0; 1120 #ifndef PRODUCT 1121 flags |= 0x0001; // VM will install block comments 1122 flags |= 0x0004; // Enable HotSpotJVMCIRuntime.Option.CodeSerializationTypeInfo if not explicitly set 1123 #endif 1124 if (JvmtiExport::can_hotswap_or_post_breakpoint()) { 1125 // VM needs to track method dependencies 1126 flags |= 0x0002; 1127 } 1128 return flags; 1129 C2V_END 1130 1131 C2V_VMENTRY_0(jint, installCode0, (JNIEnv *env, jobject, 1132 jlong compiled_code_buffer, 1133 jlong serialization_ns, 1134 bool with_type_info, 1135 jobject compiled_code, 1136 jobjectArray object_pool, 1137 jobject installed_code, 1138 jlong failed_speculations_address, 1139 jbyteArray speculations_obj)) 1140 HandleMark hm(THREAD); 1141 JNIHandleMark jni_hm(thread); 1142 1143 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code); 1144 objArrayHandle object_pool_handle(thread, JVMCIENV->is_hotspot() ? (objArrayOop) JNIHandles::resolve(object_pool) : nullptr); 1145 1146 CodeBlob* cb = nullptr; 1147 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code); 1148 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj); 1149 1150 int speculations_len = JVMCIENV->get_length(speculations_handle); 1151 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len); 1152 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len); 1153 1154 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR); 1155 JVMCICompiler::CodeInstallStats* stats = compiler->code_install_stats(!thread->is_Compiler_thread()); 1156 elapsedTimer *timer = stats->timer(); 1157 timer->add_nanoseconds(serialization_ns); 1158 TraceTime install_time("installCode", timer); 1159 1160 CodeInstaller installer(JVMCIENV); 1161 JVMCINMethodHandle nmethod_handle(THREAD); 1162 1163 JVMCI::CodeInstallResult result = installer.install(compiler, 1164 compiled_code_buffer, 1165 with_type_info, 1166 compiled_code_handle, 1167 object_pool_handle, 1168 cb, 1169 nmethod_handle, 1170 installed_code_handle, 1171 (FailedSpeculation**)(address) failed_speculations_address, 1172 speculations, 1173 speculations_len, 1174 JVMCI_CHECK_0); 1175 1176 if (PrintCodeCacheOnCompilation) { 1177 stringStream s; 1178 // Dump code cache into a buffer before locking the tty, 1179 { 1180 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 1181 CodeCache::print_summary(&s, false); 1182 } 1183 ttyLocker ttyl; 1184 tty->print_raw_cr(s.freeze()); 1185 } 1186 1187 if (result != JVMCI::ok) { 1188 assert(cb == nullptr, "should be"); 1189 } else { 1190 stats->on_install(cb); 1191 if (installed_code_handle.is_non_null()) { 1192 if (cb->is_nmethod()) { 1193 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type"); 1194 // Clear the link to an old nmethod first 1195 JVMCIObject nmethod_mirror = installed_code_handle; 1196 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, true, JVMCI_CHECK_0); 1197 } else { 1198 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type"); 1199 } 1200 // Initialize the link to the new code blob 1201 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0); 1202 } 1203 } 1204 return result; 1205 C2V_END 1206 1207 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject)) 1208 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK); 1209 CompilerStatistics* stats = compiler->stats(); 1210 stats->_standard.reset(); 1211 stats->_osr.reset(); 1212 C2V_END 1213 1214 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode)) 1215 HandleMark hm(THREAD); 1216 1217 if (installedCode == nullptr) { 1218 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null"); 1219 } 1220 1221 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode); 1222 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject); 1223 if (cb == nullptr) { 1224 return nullptr; 1225 } 1226 1227 // We don't want the stringStream buffer to resize during disassembly as it 1228 // uses scoped resource memory. If a nested function called during disassembly uses 1229 // a ResourceMark and the buffer expands within the scope of the mark, 1230 // the buffer becomes garbage when that scope is exited. Experience shows that 1231 // the disassembled code is typically about 10x the code size so a fixed buffer 1232 // sized to 20x code size plus a fixed amount for header info should be sufficient. 1233 int bufferSize = cb->code_size() * 20 + 1024; 1234 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize); 1235 stringStream st(buffer, bufferSize); 1236 Disassembler::decode(cb, &st); 1237 if (st.size() <= 0) { 1238 return nullptr; 1239 } 1240 1241 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL); 1242 return JVMCIENV->get_jobject(result); 1243 C2V_END 1244 1245 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int bci)) 1246 HandleMark hm(THREAD); 1247 1248 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 1249 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL); 1250 return JVMCIENV->get_jobject(element); 1251 C2V_END 1252 1253 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod)) 1254 // The incoming arguments array would have to contain JavaConstants instead of regular objects 1255 // and the return value would have to be wrapped as a JavaConstant. 1256 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL); 1257 1258 HandleMark hm(THREAD); 1259 1260 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod); 1261 methodHandle mh; 1262 { 1263 // Reduce the scope of JVMCINMethodHandle so that it isn't alive across the Java call. Once the 1264 // nmethod has been validated and the method is fetched from the nmethod it's fine for the 1265 // nmethod to be reclaimed if necessary. 1266 JVMCINMethodHandle nmethod_handle(THREAD); 1267 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, nmethod_handle); 1268 if (nm == nullptr || !nm->is_in_use()) { 1269 JVMCI_THROW_NULL(InvalidInstalledCodeException); 1270 } 1271 methodHandle nmh(THREAD, nm->method()); 1272 mh = nmh; 1273 } 1274 Symbol* signature = mh->signature(); 1275 JavaCallArguments jca(mh->size_of_parameters()); 1276 1277 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static()); 1278 JavaValue result(jap.return_type()); 1279 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject()))); 1280 JavaCalls::call(&result, mh, &jca, CHECK_NULL); 1281 1282 if (jap.return_type() == T_VOID) { 1283 return nullptr; 1284 } else if (is_reference_type(jap.return_type())) { 1285 return JNIHandles::make_local(THREAD, result.get_oop()); 1286 } else { 1287 jvalue *value = (jvalue *) result.get_value_addr(); 1288 // Narrow the value down if required (Important on big endian machines) 1289 switch (jap.return_type()) { 1290 case T_BOOLEAN: 1291 value->z = (jboolean) value->i; 1292 break; 1293 case T_BYTE: 1294 value->b = (jbyte) value->i; 1295 break; 1296 case T_CHAR: 1297 value->c = (jchar) value->i; 1298 break; 1299 case T_SHORT: 1300 value->s = (jshort) value->i; 1301 break; 1302 default: 1303 break; 1304 } 1305 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL); 1306 return JVMCIENV->get_jobject(o); 1307 } 1308 C2V_END 1309 1310 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 1311 Method* method = UNPACK_PAIR(Method, method); 1312 if (!method->has_linenumber_table()) { 1313 return nullptr; 1314 } 1315 u2 num_entries = 0; 1316 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table()); 1317 while (streamForSize.read_pair()) { 1318 num_entries++; 1319 } 1320 1321 CompressedLineNumberReadStream stream(method->compressed_linenumber_table()); 1322 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL); 1323 1324 int i = 0; 1325 jlong value; 1326 while (stream.read_pair()) { 1327 value = ((jlong) stream.bci()); 1328 JVMCIENV->put_long_at(result, i, value); 1329 value = ((jlong) stream.line()); 1330 JVMCIENV->put_long_at(result, i + 1, value); 1331 i += 2; 1332 } 1333 1334 return (jlongArray) JVMCIENV->get_jobject(result); 1335 C2V_END 1336 1337 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 1338 Method* method = UNPACK_PAIR(Method, method); 1339 if (!method->has_localvariable_table()) { 1340 return 0; 1341 } 1342 return (jlong) (address) method->localvariable_table_start(); 1343 C2V_END 1344 1345 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 1346 Method* method = UNPACK_PAIR(Method, method); 1347 return method->localvariable_table_length(); 1348 C2V_END 1349 1350 static MethodData* get_profiling_method_data(const methodHandle& method, TRAPS) { 1351 MethodData* method_data = method->method_data(); 1352 if (method_data == nullptr) { 1353 method->build_profiling_method_data(method, CHECK_NULL); 1354 method_data = method->method_data(); 1355 if (method_data == nullptr) { 1356 THROW_MSG_NULL(vmSymbols::java_lang_OutOfMemoryError(), "cannot allocate MethodData") 1357 } 1358 } 1359 return method_data; 1360 } 1361 1362 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 1363 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 1364 MethodCounters* mcs = method->method_counters(); 1365 if (mcs != nullptr) { 1366 mcs->clear_counters(); 1367 } 1368 NOT_PRODUCT(method->set_compiled_invocation_count(0)); 1369 1370 nmethod* code = method->code(); 1371 if (code != nullptr) { 1372 code->make_not_entrant(); 1373 } 1374 1375 MethodData* method_data = method->method_data(); 1376 if (method_data == nullptr) { 1377 method_data = get_profiling_method_data(method, CHECK); 1378 } else { 1379 CompilerThreadCanCallJava canCallJava(THREAD, true); 1380 method_data->reinitialize(); 1381 } 1382 C2V_END 1383 1384 1385 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod, jboolean deoptimize)) 1386 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod); 1387 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, deoptimize, JVMCI_CHECK); 1388 C2V_END 1389 1390 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject)) 1391 // Returns a zero length array if counters aren't enabled 1392 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL); 1393 if (JVMCICounterSize > 0) { 1394 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize); 1395 JavaThread::collect_counters(temp_array, JVMCICounterSize); 1396 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize); 1397 } 1398 return (jlongArray) JVMCIENV->get_jobject(array); 1399 C2V_END 1400 1401 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject)) 1402 return (jint) JVMCICounterSize; 1403 C2V_END 1404 1405 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size)) 1406 return JavaThread::resize_all_jvmci_counters(new_size); 1407 C2V_END 1408 1409 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci)) 1410 HandleMark hm(THREAD); 1411 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 1412 if (method.is_null()) { 1413 JVMCI_THROW_0(NullPointerException); 1414 } 1415 if (entry_bci >= method->code_size() || entry_bci < -1) { 1416 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci)); 1417 } 1418 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci); 1419 C2V_END 1420 1421 1422 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong method_data_pointer)) 1423 MethodData* mdo = (MethodData*) method_data_pointer; 1424 return mdo != nullptr && mdo->is_mature(); 1425 C2V_END 1426 1427 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), int entry_bci, int comp_level)) 1428 Method* method = UNPACK_PAIR(Method, method); 1429 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != nullptr; 1430 C2V_END 1431 1432 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol)) 1433 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL); 1434 return JVMCIENV->get_jobject(sym); 1435 C2V_END 1436 1437 C2V_VMENTRY_NULL(jobject, getSignatureName, (JNIEnv* env, jobject, jlong klass_pointer)) 1438 Klass* klass = UNPACK_PAIR(Klass, klass); 1439 JVMCIObject signature = JVMCIENV->create_string(klass->signature_name(), JVMCI_CHECK_NULL); 1440 return JVMCIENV->get_jobject(signature); 1441 C2V_END 1442 1443 /* 1444 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*. 1445 */ 1446 static GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) { 1447 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods); 1448 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length()); 1449 for (int i = 0; i < methods_oop->length(); i++) { 1450 oop resolved = methods_oop->obj_at(i); 1451 Method* resolved_method = nullptr; 1452 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) { 1453 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved); 1454 } 1455 resolved_methods->append(resolved_method); 1456 } 1457 return resolved_methods; 1458 } 1459 1460 /* 1461 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array. 1462 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter. 1463 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref. 1464 */ 1465 static bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) { 1466 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref; 1467 if (resolved_methods == nullptr) { 1468 resolved_methods = init_resolved_methods(methods, JVMCIENV); 1469 *resolved_methods_ref = resolved_methods; 1470 } 1471 assert(method != nullptr, "method should not be null"); 1472 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length"); 1473 for (int i = 0; i < resolved_methods->length(); i++) { 1474 Method* m = resolved_methods->at(i); 1475 if (m == method) { 1476 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i)); 1477 return true; 1478 } 1479 } 1480 return false; 1481 } 1482 1483 /* 1484 * Resolves an interface call to a concrete method handle. 1485 */ 1486 static methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { 1487 CallInfo callinfo; 1488 Handle receiver = args->receiver(); 1489 Klass* recvrKlass = receiver.is_null() ? (Klass*)nullptr : receiver->klass(); 1490 LinkInfo link_info(spec_klass, name, signature); 1491 LinkResolver::resolve_interface_call( 1492 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle())); 1493 methodHandle method(THREAD, callinfo.selected_method()); 1494 assert(method.not_null(), "should have thrown exception"); 1495 return method; 1496 } 1497 1498 /* 1499 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id. 1500 */ 1501 static void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) { 1502 vfst = vframeStream(thread); 1503 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) { 1504 vfst.next(); 1505 } 1506 if (vfst.frame_id() != stack_pointer) { 1507 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt") 1508 } 1509 if (vfst.is_interpreted_frame()) { 1510 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected") 1511 } 1512 while (vfst.vframe_id() != vframe_id) { 1513 if (vfst.at_end()) { 1514 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt") 1515 } 1516 vfst.next(); 1517 assert(!vfst.is_interpreted_frame(), "Wrong frame type"); 1518 } 1519 } 1520 1521 /* 1522 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or null if none. 1523 */ 1524 static GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) { 1525 GrowableArray<ScopeValue*>* unallocated = nullptr; 1526 for (int i = 0; i < scope_objects->length(); i++) { 1527 ObjectValue* sv = (ObjectValue*) scope_objects->at(i); 1528 if (sv->value().is_null()) { 1529 if (unallocated == nullptr) { 1530 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length()); 1531 } 1532 unallocated->append(sv); 1533 } 1534 } 1535 return unallocated; 1536 } 1537 1538 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle)) 1539 1540 if (!thread->has_last_Java_frame()) { 1541 return nullptr; 1542 } 1543 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle)); 1544 KeepStackGCProcessedMark keep_stack(THREAD); 1545 1546 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL); 1547 1548 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL); 1549 1550 vframeStream vfst(thread); 1551 jobjectArray methods = initial_methods; 1552 methodHandle visitor_method; 1553 GrowableArray<Method*>* resolved_methods = nullptr; 1554 1555 while (!vfst.at_end()) { // frame loop 1556 bool realloc_called = false; 1557 intptr_t* frame_id = vfst.frame_id(); 1558 1559 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool. 1560 compiledVFrame* prev_cvf = nullptr; 1561 1562 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop 1563 int frame_number = 0; 1564 Method *method = vfst.method(); 1565 int bci = vfst.bci(); 1566 1567 Handle matched_jvmci_method; 1568 if (methods == nullptr || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) { 1569 if (initialSkip > 0) { 1570 initialSkip--; 1571 continue; 1572 } 1573 javaVFrame* vf; 1574 if (prev_cvf != nullptr && prev_cvf->frame_pointer()->id() == frame_id) { 1575 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame"); 1576 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id()); 1577 } else { 1578 vf = vfst.asJavaVFrame(); 1579 } 1580 1581 StackValueCollection* locals = nullptr; 1582 typeArrayHandle localIsVirtual_h; 1583 if (vf->is_compiled_frame()) { 1584 // compiled method frame 1585 compiledVFrame* cvf = compiledVFrame::cast(vf); 1586 1587 ScopeDesc* scope = cvf->scope(); 1588 // native wrappers do not have a scope 1589 if (scope != nullptr && scope->objects() != nullptr) { 1590 prev_cvf = cvf; 1591 1592 GrowableArray<ScopeValue*>* objects = nullptr; 1593 if (!realloc_called) { 1594 objects = scope->objects(); 1595 } else { 1596 // some object might already have been re-allocated, only reallocate the non-allocated ones 1597 objects = get_unallocated_objects_or_null(scope->objects()); 1598 } 1599 1600 if (objects != nullptr) { 1601 RegisterMap reg_map(vf->register_map()); 1602 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL); 1603 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false); 1604 realloc_called = true; 1605 } 1606 1607 GrowableArray<ScopeValue*>* local_values = scope->locals(); 1608 for (int i = 0; i < local_values->length(); i++) { 1609 ScopeValue* value = local_values->at(i); 1610 assert(!value->is_object_merge(), "Should not be."); 1611 if (value->is_object()) { 1612 if (localIsVirtual_h.is_null()) { 1613 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL); 1614 localIsVirtual_h = typeArrayHandle(THREAD, array_oop); 1615 } 1616 localIsVirtual_h->bool_at_put(i, true); 1617 } 1618 } 1619 } 1620 1621 locals = cvf->locals(); 1622 frame_number = cvf->vframe_id(); 1623 } else { 1624 // interpreted method frame 1625 interpretedVFrame* ivf = interpretedVFrame::cast(vf); 1626 1627 locals = ivf->locals(); 1628 } 1629 assert(bci == vf->bci(), "wrong bci"); 1630 assert(method == vf->method(), "wrong method"); 1631 1632 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL); 1633 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci); 1634 if (matched_jvmci_method.is_null()) { 1635 methodHandle mh(THREAD, method); 1636 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL); 1637 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject())); 1638 } 1639 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method()); 1640 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h()); 1641 1642 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM)); 1643 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id); 1644 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number); 1645 1646 // initialize the locals array 1647 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL); 1648 objArrayHandle array(THREAD, array_oop); 1649 for (int i = 0; i < locals->size(); i++) { 1650 StackValue* var = locals->at(i); 1651 if (var->type() == T_OBJECT) { 1652 array->obj_at_put(i, locals->at(i)->get_obj()()); 1653 } 1654 } 1655 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array()); 1656 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE); 1657 1658 JavaValue result(T_OBJECT); 1659 JavaCallArguments args(visitor); 1660 if (visitor_method.is_null()) { 1661 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL); 1662 } 1663 1664 args.push_oop(frame_reference); 1665 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL); 1666 if (result.get_oop() != nullptr) { 1667 return JNIHandles::make_local(thread, result.get_oop()); 1668 } 1669 if (methods == initial_methods) { 1670 methods = match_methods; 1671 if (resolved_methods != nullptr && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) { 1672 resolved_methods = nullptr; 1673 } 1674 } 1675 assert(initialSkip == 0, "There should be no match before initialSkip == 0"); 1676 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) { 1677 // the frame has been deoptimized, we need to re-synchronize the frame and vframe 1678 prev_cvf = nullptr; 1679 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference()); 1680 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL); 1681 } 1682 } 1683 } // end of vframe loop 1684 } // end of frame loop 1685 1686 // the end was reached without finding a matching method 1687 return nullptr; 1688 C2V_END 1689 1690 C2V_VMENTRY_0(int, decodeIndyIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint indy_index, jboolean resolve)) 1691 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 1692 CallInfo callInfo; 1693 if (resolve) { 1694 LinkResolver::resolve_invoke(callInfo, Handle(), cp, indy_index, Bytecodes::_invokedynamic, CHECK_0); 1695 cp->cache()->set_dynamic_call(callInfo, indy_index); 1696 } 1697 return cp->resolved_indy_entry_at(indy_index)->constant_pool_index(); 1698 C2V_END 1699 1700 C2V_VMENTRY_0(int, decodeFieldIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint field_index)) 1701 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 1702 if (field_index < 0 || field_index >= cp->resolved_field_entries_length()) { 1703 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid field index %d", field_index)); 1704 } 1705 return cp->resolved_field_entry_at(field_index)->constant_pool_index(); 1706 C2V_END 1707 1708 C2V_VMENTRY_0(int, decodeMethodIndexToCPIndex, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint method_index)) 1709 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 1710 if (method_index < 0 || method_index >= cp->resolved_method_entries_length()) { 1711 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("invalid method index %d", method_index)); 1712 } 1713 return cp->resolved_method_entry_at(method_index)->constant_pool_index(); 1714 C2V_END 1715 1716 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index)) 1717 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 1718 Klass* holder = cp->klass_ref_at(index, Bytecodes::_invokehandle, CHECK); 1719 Symbol* name = cp->name_ref_at(index, Bytecodes::_invokehandle); 1720 if (MethodHandles::is_signature_polymorphic_name(holder, name)) { 1721 CallInfo callInfo; 1722 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK); 1723 cp->cache()->set_method_handle(index, callInfo); 1724 } 1725 C2V_END 1726 1727 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, ARGUMENT_PAIR(cp), jint index, jint opcode)) 1728 constantPoolHandle cp(THREAD, UNPACK_PAIR(ConstantPool, cp)); 1729 ResolvedMethodEntry* entry = cp->cache()->resolved_method_entry_at(index); 1730 if (entry->is_resolved(Bytecodes::_invokehandle)) { 1731 // MethodHandle.invoke* --> LambdaForm? 1732 ResourceMark rm; 1733 1734 LinkInfo link_info(cp, index, Bytecodes::_invokehandle, CATCH); 1735 1736 Klass* resolved_klass = link_info.resolved_klass(); 1737 1738 Symbol* name_sym = cp->name_ref_at(index, Bytecodes::_invokehandle); 1739 1740 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!"); 1741 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!"); 1742 1743 methodHandle adapter_method(THREAD, entry->method()); 1744 1745 methodHandle resolved_method(adapter_method); 1746 1747 // Can we treat it as a regular invokevirtual? 1748 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) { 1749 vmassert(!resolved_method->is_static(),"!"); 1750 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!"); 1751 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!"); 1752 vmassert(cp->cache()->appendix_if_resolved(entry) == nullptr, "!"); 1753 1754 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info)); 1755 vmassert(m == resolved_method, "!!"); 1756 return -1; 1757 } 1758 1759 return Bytecodes::_invokevirtual; 1760 } 1761 if ((Bytecodes::Code)opcode == Bytecodes::_invokedynamic) { 1762 if (cp->resolved_indy_entry_at(index)->is_resolved()) { 1763 return Bytecodes::_invokedynamic; 1764 } 1765 } 1766 return -1; 1767 C2V_END 1768 1769 1770 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject)) 1771 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL); 1772 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL); 1773 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL); 1774 JVMCIENV->put_object_at(holders, 0, mh); 1775 JVMCIENV->put_object_at(holders, 1, vh); 1776 return JVMCIENV->get_jobject(holders); 1777 C2V_END 1778 1779 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject)) 1780 //see compute_recording_non_safepoints in debugInfroRec.cpp 1781 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) { 1782 return true; 1783 } 1784 return DebugNonSafepoints; 1785 C2V_END 1786 1787 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate); 1788 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate)) 1789 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame); 1790 if (hs_frame.is_null()) { 1791 JVMCI_THROW_MSG(NullPointerException, "stack frame is null"); 1792 } 1793 1794 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK); 1795 1796 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK); 1797 1798 // look for the given stack frame 1799 StackFrameStream fst(thread, false /* update */, true /* process_frames */); 1800 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame); 1801 while (fst.current()->id() != stack_pointer && !fst.is_done()) { 1802 fst.next(); 1803 } 1804 if (fst.current()->id() != stack_pointer) { 1805 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found"); 1806 } 1807 1808 if (invalidate) { 1809 if (!fst.current()->is_compiled_frame()) { 1810 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected"); 1811 } 1812 fst.current()->cb()->as_nmethod()->make_not_entrant(); 1813 } 1814 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none); 1815 // look for the frame again as it has been updated by deopt (pc, deopt state...) 1816 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */); 1817 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) { 1818 fstAfterDeopt.next(); 1819 } 1820 if (fstAfterDeopt.current()->id() != stack_pointer) { 1821 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt"); 1822 } 1823 1824 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread); 1825 if (!vf->is_compiled_frame()) { 1826 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected"); 1827 } 1828 1829 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10); 1830 while (true) { 1831 assert(vf->is_compiled_frame(), "Wrong frame type"); 1832 virtualFrames->push(compiledVFrame::cast(vf)); 1833 if (vf->is_top()) { 1834 break; 1835 } 1836 vf = vf->sender(); 1837 } 1838 1839 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame); 1840 if (last_frame_number >= virtualFrames->length()) { 1841 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number"); 1842 } 1843 1844 // Reallocate the non-escaping objects and restore their fields. 1845 assert (virtualFrames->at(last_frame_number)->scope() != nullptr,"invalid scope"); 1846 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects(); 1847 1848 if (objects == nullptr) { 1849 // no objects to materialize 1850 return; 1851 } 1852 1853 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK); 1854 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false); 1855 1856 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) { 1857 compiledVFrame* cvf = virtualFrames->at(frame_index); 1858 1859 GrowableArray<ScopeValue*>* scopedValues = cvf->scope()->locals(); 1860 StackValueCollection* locals = cvf->locals(); 1861 if (locals != nullptr) { 1862 for (int i2 = 0; i2 < locals->size(); i2++) { 1863 StackValue* var = locals->at(i2); 1864 assert(!scopedValues->at(i2)->is_object_merge(), "Should not be."); 1865 if (var->type() == T_OBJECT && scopedValues->at(i2)->is_object()) { 1866 jvalue val; 1867 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()()); 1868 cvf->update_local(T_OBJECT, i2, val); 1869 } 1870 } 1871 } 1872 1873 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions(); 1874 StackValueCollection* expressions = cvf->expressions(); 1875 if (expressions != nullptr) { 1876 for (int i2 = 0; i2 < expressions->size(); i2++) { 1877 StackValue* var = expressions->at(i2); 1878 assert(!scopeExpressions->at(i2)->is_object_merge(), "Should not be."); 1879 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) { 1880 jvalue val; 1881 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()()); 1882 cvf->update_stack(T_OBJECT, i2, val); 1883 } 1884 } 1885 } 1886 1887 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors(); 1888 GrowableArray<MonitorInfo*>* monitors = cvf->monitors(); 1889 if (monitors != nullptr) { 1890 for (int i2 = 0; i2 < monitors->length(); i2++) { 1891 cvf->update_monitor(i2, monitors->at(i2)); 1892 } 1893 } 1894 } 1895 1896 // all locals are materialized by now 1897 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, nullptr); 1898 // update the locals array 1899 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame); 1900 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals(); 1901 for (int i = 0; i < locals->size(); i++) { 1902 StackValue* var = locals->at(i); 1903 if (var->type() == T_OBJECT) { 1904 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()())); 1905 } 1906 } 1907 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE); 1908 C2V_END 1909 1910 // Use of tty does not require the current thread to be attached to the VM 1911 // so no need for a full C2V_VMENTRY transition. 1912 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush)) 1913 if (length <= 8) { 1914 tty->write((char*) &buffer, length); 1915 } else { 1916 tty->write((char*) buffer, length); 1917 } 1918 if (flush) { 1919 tty->flush(); 1920 } 1921 C2V_END 1922 1923 // Use of tty does not require the current thread to be attached to the VM 1924 // so no need for a full C2V_VMENTRY transition. 1925 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject)) 1926 tty->flush(); 1927 C2V_END 1928 1929 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong method_data_pointer, jint position)) 1930 MethodData* mdo = (MethodData*) method_data_pointer; 1931 ProfileData* profile_data = mdo->data_at(position); 1932 if (mdo->is_valid(profile_data)) { 1933 return profile_data->size_in_bytes(); 1934 } 1935 // Java code should never directly access the extra data section 1936 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position)); 1937 C2V_END 1938 1939 C2V_VMENTRY_0(jint, methodDataExceptionSeen, (JNIEnv* env, jobject, jlong method_data_pointer, jint bci)) 1940 MethodData* mdo = (MethodData*) method_data_pointer; 1941 1942 // Lock to read ProfileData, and ensure lock is not broken by a safepoint 1943 MutexLocker mu(mdo->extra_data_lock(), Mutex::_no_safepoint_check_flag); 1944 1945 DataLayout* data = mdo->extra_data_base(); 1946 DataLayout* end = mdo->args_data_limit(); 1947 for (;; data = mdo->next_extra(data)) { 1948 assert(data < end, "moved past end of extra data"); 1949 int tag = data->tag(); 1950 switch(tag) { 1951 case DataLayout::bit_data_tag: { 1952 BitData* bit_data = (BitData*) data->data_in(); 1953 if (bit_data->bci() == bci) { 1954 return bit_data->exception_seen() ? 1 : 0; 1955 } 1956 break; 1957 } 1958 case DataLayout::no_tag: 1959 // There is a free slot so return false since a BitData would have been allocated to record 1960 // true if it had been seen. 1961 return 0; 1962 case DataLayout::arg_info_data_tag: 1963 // The bci wasn't found and there are no free slots to record a trap for this location, so always 1964 // return unknown. 1965 return -1; 1966 } 1967 } 1968 ShouldNotReachHere(); 1969 return -1; 1970 C2V_END 1971 1972 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 1973 Klass* klass = UNPACK_PAIR(Klass, klass); 1974 if (klass == nullptr) { 1975 JVMCI_THROW_NULL(NullPointerException); 1976 } 1977 1978 if (!klass->is_instance_klass()) { 1979 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be instance klass", klass->external_name())); 1980 } 1981 InstanceKlass* iklass = InstanceKlass::cast(klass); 1982 1983 // Regular instance klass, fill in all local interfaces 1984 int size = iklass->local_interfaces()->length(); 1985 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL); 1986 for (int index = 0; index < size; index++) { 1987 JVMCIKlassHandle klass(THREAD); 1988 Klass* k = iklass->local_interfaces()->at(index); 1989 klass = k; 1990 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 1991 JVMCIENV->put_object_at(interfaces, index, type); 1992 } 1993 return JVMCIENV->get_jobject(interfaces); 1994 C2V_END 1995 1996 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 1997 Klass* klass = UNPACK_PAIR(Klass, klass); 1998 if (klass == nullptr) { 1999 JVMCI_THROW_NULL(NullPointerException); 2000 } 2001 2002 if (!klass->is_array_klass()) { 2003 return nullptr; 2004 } 2005 oop mirror = klass->java_mirror(); 2006 oop component_mirror = java_lang_Class::component_mirror(mirror); 2007 if (component_mirror == nullptr) { 2008 JVMCI_THROW_MSG_NULL(NullPointerException, 2009 err_msg("Component mirror for array class %s is null", klass->external_name())) 2010 } 2011 2012 Klass* component_klass = java_lang_Class::as_Klass(component_mirror); 2013 if (component_klass != nullptr) { 2014 JVMCIKlassHandle klass_handle(THREAD, component_klass); 2015 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL); 2016 return JVMCIENV->get_jobject(result); 2017 } 2018 BasicType type = java_lang_Class::primitive_type(component_mirror); 2019 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type); 2020 return JVMCIENV->get_jobject(result); 2021 C2V_END 2022 2023 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2024 Klass* klass = UNPACK_PAIR(Klass, klass); 2025 if (klass == nullptr) { 2026 JVMCI_THROW(NullPointerException); 2027 } 2028 if (klass->should_be_initialized()) { 2029 InstanceKlass* k = InstanceKlass::cast(klass); 2030 k->initialize(CHECK); 2031 } 2032 C2V_END 2033 2034 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2035 CompilerThreadCanCallJava canCallJava(thread, true); // Linking requires Java calls 2036 Klass* klass = UNPACK_PAIR(Klass, klass); 2037 if (klass == nullptr) { 2038 JVMCI_THROW(NullPointerException); 2039 } 2040 if (klass->is_instance_klass()) { 2041 InstanceKlass* k = InstanceKlass::cast(klass); 2042 k->link_class(CHECK); 2043 } 2044 C2V_END 2045 2046 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle)) 2047 if (bytecode_frame_handle == nullptr) { 2048 JVMCI_THROW_0(NullPointerException); 2049 } 2050 2051 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle); 2052 JVMCIObject bytecode_frame = top_bytecode_frame; 2053 int size = 0; 2054 int callee_parameters = 0; 2055 int callee_locals = 0; 2056 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame)); 2057 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame); 2058 2059 while (bytecode_frame.is_non_null()) { 2060 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame); 2061 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame); 2062 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame)); 2063 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame)); 2064 2065 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(), 2066 temps + callee_parameters, 2067 extra_args, 2068 locks, 2069 callee_parameters, 2070 callee_locals, 2071 is_top_frame); 2072 size += frame_size; 2073 2074 callee_parameters = method->size_of_parameters(); 2075 callee_locals = method->max_locals(); 2076 extra_args = 0; 2077 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame); 2078 } 2079 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord; 2080 C2V_END 2081 2082 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle)) 2083 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK); 2084 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) { 2085 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode"); 2086 JavaValue result(T_VOID); 2087 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK); 2088 } else { 2089 JVMCI_THROW_MSG(IllegalArgumentException, 2090 err_msg("Unexpected type: %s", lambda_form->klass()->external_name())) 2091 } 2092 C2V_END 2093 2094 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object)) 2095 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 2096 return obj->identity_hash(); 2097 C2V_END 2098 2099 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object)) 2100 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 2101 if (!java_lang_String::is_instance(str())) { 2102 return false; 2103 } 2104 int len; 2105 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false); 2106 return (StringTable::lookup(name, len) != nullptr); 2107 C2V_END 2108 2109 2110 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object)) 2111 if (object == nullptr) { 2112 JVMCI_THROW_NULL(NullPointerException); 2113 } 2114 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2115 BasicType type = java_lang_boxing_object::basic_type(box()); 2116 jvalue result; 2117 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) { 2118 return nullptr; 2119 } 2120 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL); 2121 return JVMCIENV->get_jobject(boxResult); 2122 C2V_END 2123 2124 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object)) 2125 if (object == nullptr) { 2126 JVMCI_THROW_NULL(NullPointerException); 2127 } 2128 JVMCIObject box = JVMCIENV->wrap(object); 2129 BasicType type = JVMCIENV->get_box_type(box); 2130 if (type == T_ILLEGAL) { 2131 return nullptr; 2132 } 2133 jvalue value = JVMCIENV->get_boxed_value(type, box); 2134 JavaValue box_result(T_OBJECT); 2135 JavaCallArguments jargs; 2136 Klass* box_klass = nullptr; 2137 Symbol* box_signature = nullptr; 2138 #define BOX_CASE(bt, v, argtype, name) \ 2139 case bt: \ 2140 jargs.push_##argtype(value.v); \ 2141 box_klass = vmClasses::name##_klass(); \ 2142 box_signature = vmSymbols::name##_valueOf_signature(); \ 2143 break 2144 2145 switch (type) { 2146 BOX_CASE(T_BOOLEAN, z, int, Boolean); 2147 BOX_CASE(T_BYTE, b, int, Byte); 2148 BOX_CASE(T_CHAR, c, int, Character); 2149 BOX_CASE(T_SHORT, s, int, Short); 2150 BOX_CASE(T_INT, i, int, Integer); 2151 BOX_CASE(T_LONG, j, long, Long); 2152 BOX_CASE(T_FLOAT, f, float, Float); 2153 BOX_CASE(T_DOUBLE, d, double, Double); 2154 default: 2155 ShouldNotReachHere(); 2156 } 2157 #undef BOX_CASE 2158 2159 JavaCalls::call_static(&box_result, 2160 box_klass, 2161 vmSymbols::valueOf_name(), 2162 box_signature, &jargs, CHECK_NULL); 2163 oop hotspot_box = box_result.get_oop(); 2164 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false); 2165 return JVMCIENV->get_jobject(result); 2166 C2V_END 2167 2168 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2169 Klass* klass = UNPACK_PAIR(Klass, klass); 2170 if (klass == nullptr) { 2171 JVMCI_THROW_NULL(NullPointerException); 2172 } 2173 if (!klass->is_instance_klass()) { 2174 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL); 2175 return JVMCIENV->get_jobjectArray(methods); 2176 } 2177 2178 InstanceKlass* iklass = InstanceKlass::cast(klass); 2179 GrowableArray<Method*> constructors_array; 2180 for (int i = 0; i < iklass->methods()->length(); i++) { 2181 Method* m = iklass->methods()->at(i); 2182 if (m->is_object_initializer()) { 2183 constructors_array.append(m); 2184 } 2185 } 2186 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL); 2187 for (int i = 0; i < constructors_array.length(); i++) { 2188 methodHandle ctor(THREAD, constructors_array.at(i)); 2189 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL); 2190 JVMCIENV->put_object_at(methods, i, method); 2191 } 2192 return JVMCIENV->get_jobjectArray(methods); 2193 C2V_END 2194 2195 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2196 Klass* klass = UNPACK_PAIR(Klass, klass); 2197 if (klass == nullptr) { 2198 JVMCI_THROW_NULL(NullPointerException); 2199 } 2200 if (!klass->is_instance_klass()) { 2201 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL); 2202 return JVMCIENV->get_jobjectArray(methods); 2203 } 2204 2205 InstanceKlass* iklass = InstanceKlass::cast(klass); 2206 GrowableArray<Method*> methods_array; 2207 for (int i = 0; i < iklass->methods()->length(); i++) { 2208 Method* m = iklass->methods()->at(i); 2209 if (!m->is_object_initializer() && !m->is_static_initializer() && !m->is_overpass()) { 2210 methods_array.append(m); 2211 } 2212 } 2213 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL); 2214 for (int i = 0; i < methods_array.length(); i++) { 2215 methodHandle mh(THREAD, methods_array.at(i)); 2216 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL); 2217 JVMCIENV->put_object_at(methods, i, method); 2218 } 2219 return JVMCIENV->get_jobjectArray(methods); 2220 C2V_END 2221 2222 C2V_VMENTRY_NULL(jobjectArray, getDeclaredFieldsInfo, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2223 Klass* klass = UNPACK_PAIR(Klass, klass); 2224 if (klass == nullptr) { 2225 JVMCI_THROW_NULL(NullPointerException); 2226 } 2227 if (!klass->is_instance_klass()) { 2228 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "not an InstanceKlass"); 2229 } 2230 InstanceKlass* iklass = InstanceKlass::cast(klass); 2231 int java_fields, injected_fields; 2232 GrowableArray<FieldInfo>* fields = FieldInfoStream::create_FieldInfoArray(iklass->fieldinfo_stream(), &java_fields, &injected_fields); 2233 JVMCIObjectArray array = JVMCIENV->new_FieldInfo_array(fields->length(), JVMCIENV); 2234 for (int i = 0; i < fields->length(); i++) { 2235 JVMCIObject field_info = JVMCIENV->new_FieldInfo(fields->adr_at(i), JVMCI_CHECK_NULL); 2236 JVMCIENV->put_object_at(array, i, field_info); 2237 } 2238 return array.as_jobject(); 2239 C2V_END 2240 2241 static jobject read_field_value(Handle obj, long displacement, jchar type_char, bool is_static, Thread* THREAD, JVMCIEnv* JVMCIENV) { 2242 2243 BasicType basic_type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_NULL); 2244 int basic_type_elemsize = type2aelembytes(basic_type); 2245 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) { 2246 // Reading outside of the object bounds 2247 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds"); 2248 } 2249 2250 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the 2251 // bounds of their fields but object reads must map exactly onto the underlying oop slot. 2252 bool aligned = (displacement % basic_type_elemsize) == 0; 2253 if (!aligned) { 2254 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned"); 2255 } 2256 if (basic_type == T_OBJECT) { 2257 if (obj->is_objArray()) { 2258 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) { 2259 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header"); 2260 } 2261 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) { 2262 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element"); 2263 } 2264 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) { 2265 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array"); 2266 } 2267 } else if (obj->is_instance()) { 2268 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass()); 2269 fieldDescriptor fd; 2270 if (!klass->find_field_from_offset(displacement, is_static, &fd)) { 2271 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name())); 2272 } 2273 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) { 2274 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement, 2275 klass->external_name(), type2name(fd.field_type()), type2name(basic_type))); 2276 } 2277 } else if (obj->is_typeArray()) { 2278 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array"); 2279 } else { 2280 ShouldNotReachHere(); 2281 } 2282 } else { 2283 if (obj->is_objArray()) { 2284 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array"); 2285 } else if (obj->is_typeArray()) { 2286 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) { 2287 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header"); 2288 } 2289 } 2290 } 2291 2292 jlong value = 0; 2293 2294 // Treat all reads as volatile for simplicity as this function can be used 2295 // both for reading Java fields declared as volatile as well as for constant 2296 // folding Unsafe.get* methods with volatile semantics. 2297 2298 switch (basic_type) { 2299 case T_BOOLEAN: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jboolean>(displacement)); break; 2300 case T_BYTE: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jbyte>(displacement)); break; 2301 case T_SHORT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jshort>(displacement)); break; 2302 case T_CHAR: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jchar>(displacement)); break; 2303 case T_FLOAT: 2304 case T_INT: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jint>(displacement)); break; 2305 case T_DOUBLE: 2306 case T_LONG: value = HeapAccess<MO_SEQ_CST>::load(obj->field_addr<jlong>(displacement)); break; 2307 2308 case T_OBJECT: { 2309 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) && 2310 (java_lang_Class::as_Klass(obj()) == nullptr || !java_lang_Class::as_Klass(obj())->is_array_klass())) { 2311 // Class.componentType for non-array classes can transiently contain an int[] that's 2312 // used for locking so always return null to mimic Class.getComponentType() 2313 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 2314 } 2315 2316 // Perform the read including any barriers required to make the reference strongly reachable 2317 // since it will be wrapped as a JavaConstant. 2318 oop value = obj->obj_field_access<MO_SEQ_CST | ON_UNKNOWN_OOP_REF>(displacement); 2319 2320 if (value == nullptr) { 2321 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 2322 } else { 2323 if (value != nullptr && !oopDesc::is_oop(value)) { 2324 // Throw an exception to improve debuggability. This check isn't totally reliable because 2325 // is_oop doesn't try to be completety safe but for most invalid values it provides a good 2326 // enough answer. It possible to crash in the is_oop call but that just means the crash happens 2327 // closer to where things went wrong. 2328 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s", 2329 p2i(value), displacement, p2i(obj()), obj->klass()->external_name())); 2330 } 2331 2332 JVMCIObject result = JVMCIENV->get_object_constant(value); 2333 return JVMCIENV->get_jobject(result); 2334 } 2335 } 2336 2337 default: 2338 ShouldNotReachHere(); 2339 } 2340 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(type_char, value, JVMCI_CHECK_NULL); 2341 return JVMCIENV->get_jobject(result); 2342 } 2343 2344 C2V_VMENTRY_NULL(jobject, readStaticFieldValue, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), long displacement, jchar type_char)) 2345 Klass* klass = UNPACK_PAIR(Klass, klass); 2346 Handle obj(THREAD, klass->java_mirror()); 2347 return read_field_value(obj, displacement, type_char, true, THREAD, JVMCIENV); 2348 C2V_END 2349 2350 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, ARGUMENT_PAIR(expected_type), long displacement, jchar type_char)) 2351 if (object == nullptr) { 2352 JVMCI_THROW_NULL(NullPointerException); 2353 } 2354 2355 // asConstant will throw an NPE if a constant contains null 2356 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2357 2358 Klass* expected_klass = UNPACK_PAIR(Klass, expected_type); 2359 if (expected_klass != nullptr) { 2360 InstanceKlass* expected_iklass = InstanceKlass::cast(expected_klass); 2361 if (!obj->is_a(expected_iklass)) { 2362 // Not of the expected type 2363 return nullptr; 2364 } 2365 } 2366 bool is_static = expected_klass == nullptr && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields(); 2367 return read_field_value(obj, displacement, type_char, is_static, THREAD, JVMCIENV); 2368 C2V_END 2369 2370 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jobject object)) 2371 Klass* klass = UNPACK_PAIR(Klass, klass); 2372 if (object == nullptr || klass == nullptr) { 2373 JVMCI_THROW_0(NullPointerException); 2374 } 2375 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 2376 return obj->is_a(klass); 2377 C2V_END 2378 2379 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), ARGUMENT_PAIR(subklass))) 2380 Klass* klass = UNPACK_PAIR(Klass, klass); 2381 Klass* subklass = UNPACK_PAIR(Klass, subklass); 2382 if (klass == nullptr || subklass == nullptr) { 2383 JVMCI_THROW_0(NullPointerException); 2384 } 2385 return subklass->is_subtype_of(klass); 2386 C2V_END 2387 2388 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2389 Klass* klass = UNPACK_PAIR(Klass, klass); 2390 if (klass == nullptr) { 2391 JVMCI_THROW_0(NullPointerException); 2392 } 2393 InstanceKlass* ik = InstanceKlass::cast(klass); 2394 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) { 2395 return true; 2396 } 2397 return false; 2398 C2V_END 2399 2400 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object)) 2401 if (object == nullptr) { 2402 JVMCI_THROW_NULL(NullPointerException); 2403 } 2404 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2405 if (java_lang_Class::is_instance(obj())) { 2406 if (java_lang_Class::is_primitive(obj())) { 2407 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj())); 2408 return JVMCIENV->get_jobject(type); 2409 } 2410 Klass* klass = java_lang_Class::as_Klass(obj()); 2411 JVMCIKlassHandle klass_handle(THREAD); 2412 klass_handle = klass; 2413 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL); 2414 return JVMCIENV->get_jobject(type); 2415 } 2416 return nullptr; 2417 C2V_END 2418 2419 2420 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object)) 2421 if (object == nullptr) { 2422 JVMCI_THROW_NULL(NullPointerException); 2423 } 2424 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2425 const char* str = java_lang_String::as_utf8_string(obj()); 2426 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL); 2427 return JVMCIENV->get_jobject(result); 2428 C2V_END 2429 2430 2431 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle)) 2432 if (x == nullptr || y == nullptr) { 2433 JVMCI_THROW_0(NullPointerException); 2434 } 2435 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle); 2436 C2V_END 2437 2438 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass))) 2439 Klass* klass = UNPACK_PAIR(Klass, klass); 2440 if (klass == nullptr) { 2441 JVMCI_THROW_NULL(NullPointerException); 2442 } 2443 Handle mirror(THREAD, klass->java_mirror()); 2444 JVMCIObject result = JVMCIENV->get_object_constant(mirror()); 2445 return JVMCIENV->get_jobject(result); 2446 C2V_END 2447 2448 2449 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x)) 2450 if (x == nullptr) { 2451 JVMCI_THROW_0(NullPointerException); 2452 } 2453 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0); 2454 if (xobj->klass()->is_array_klass()) { 2455 return arrayOop(xobj())->length(); 2456 } 2457 return -1; 2458 C2V_END 2459 2460 2461 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index)) 2462 if (x == nullptr) { 2463 JVMCI_THROW_NULL(NullPointerException); 2464 } 2465 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL); 2466 if (xobj->klass()->is_array_klass()) { 2467 arrayOop array = arrayOop(xobj()); 2468 BasicType element_type = ArrayKlass::cast(array->klass())->element_type(); 2469 if (index < 0 || index >= array->length()) { 2470 return nullptr; 2471 } 2472 JVMCIObject result; 2473 2474 if (element_type == T_OBJECT) { 2475 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index)); 2476 if (result.is_null()) { 2477 result = JVMCIENV->get_JavaConstant_NULL_POINTER(); 2478 } 2479 } else { 2480 jvalue value; 2481 switch (element_type) { 2482 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break; 2483 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break; 2484 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break; 2485 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break; 2486 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break; 2487 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break; 2488 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break; 2489 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break; 2490 default: ShouldNotReachHere(); 2491 } 2492 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL); 2493 } 2494 assert(!result.is_null(), "must have a value"); 2495 return JVMCIENV->get_jobject(result); 2496 } 2497 return nullptr;; 2498 C2V_END 2499 2500 2501 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jchar type_char)) 2502 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0); 2503 return arrayOopDesc::base_offset_in_bytes(type); 2504 C2V_END 2505 2506 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jchar type_char)) 2507 BasicType type = JVMCIENV->typeCharToBasicType(type_char, JVMCI_CHECK_0); 2508 return type2aelembytes(type); 2509 C2V_END 2510 2511 C2V_VMENTRY(void, clearOopHandle, (JNIEnv* env, jobject, jlong oop_handle)) 2512 if (oop_handle == 0L) { 2513 JVMCI_THROW(NullPointerException); 2514 } 2515 // Assert before nulling out, for better debugging. 2516 assert(JVMCIRuntime::is_oop_handle(oop_handle), "precondition"); 2517 oop* oop_ptr = (oop*) oop_handle; 2518 NativeAccess<>::oop_store(oop_ptr, (oop) nullptr); 2519 C2V_END 2520 2521 C2V_VMENTRY(void, releaseClearedOopHandles, (JNIEnv* env, jobject)) 2522 JVMCIENV->runtime()->release_cleared_oop_handles(); 2523 C2V_END 2524 2525 static void requireJVMCINativeLibrary(JVMCI_TRAPS) { 2526 if (!UseJVMCINativeLibrary) { 2527 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)"); 2528 } 2529 } 2530 2531 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror)) 2532 requireJVMCINativeLibrary(JVMCI_CHECK_NULL); 2533 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL); 2534 char* sl_path; 2535 void* sl_handle; 2536 JVMCIRuntime* runtime; 2537 { 2538 // Ensure the JVMCI shared library runtime is initialized. 2539 PEER_JVMCIENV_FROM_THREAD(THREAD, false); 2540 PEER_JVMCIENV->check_init(JVMCI_CHECK_NULL); 2541 2542 HandleMark hm(THREAD); 2543 runtime = JVMCI::compiler_runtime(thread); 2544 if (PEER_JVMCIENV->has_pending_exception()) { 2545 PEER_JVMCIENV->describe_pending_exception(tty); 2546 } 2547 sl_handle = JVMCI::get_shared_library(sl_path, false); 2548 if (sl_handle == nullptr) { 2549 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id())); 2550 } 2551 } 2552 2553 if (mirror == nullptr) { 2554 JVMCI_THROW_NULL(NullPointerException); 2555 } 2556 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror)); 2557 if (klass == nullptr || !klass->is_instance_klass()) { 2558 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "clazz is for primitive type"); 2559 } 2560 2561 InstanceKlass* iklass = InstanceKlass::cast(klass); 2562 for (int i = 0; i < iklass->methods()->length(); i++) { 2563 methodHandle method(THREAD, iklass->methods()->at(i)); 2564 if (method->is_native()) { 2565 2566 // Compute argument size 2567 int args_size = 1 // JNIEnv 2568 + (method->is_static() ? 1 : 0) // class for static methods 2569 + method->size_of_parameters(); // actual parameters 2570 2571 // 1) Try JNI short style 2572 stringStream st; 2573 char* pure_name = NativeLookup::pure_jni_name(method); 2574 guarantee(pure_name != nullptr, "Illegal native method name encountered"); 2575 st.print_raw(pure_name); 2576 char* jni_name = st.as_string(); 2577 2578 address entry = (address) os::dll_lookup(sl_handle, jni_name); 2579 if (entry == nullptr) { 2580 // 2) Try JNI long style 2581 st.reset(); 2582 char* long_name = NativeLookup::long_jni_name(method); 2583 guarantee(long_name != nullptr, "Illegal native method name encountered"); 2584 st.print_raw(pure_name); 2585 st.print_raw(long_name); 2586 char* jni_long_name = st.as_string(); 2587 entry = (address) os::dll_lookup(sl_handle, jni_long_name); 2588 if (entry == nullptr) { 2589 JVMCI_THROW_MSG_NULL(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]", 2590 method->name_and_sig_as_C_string(), 2591 jni_name, jni_long_name, sl_path)); 2592 } 2593 } 2594 2595 if (method->has_native_function() && entry != method->native_function()) { 2596 JVMCI_THROW_MSG_NULL(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]", 2597 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry))); 2598 } 2599 method->set_native_function(entry, Method::native_bind_event_is_interesting); 2600 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT, 2601 method->method_holder()->external_name(), 2602 method->name()->as_C_string(), 2603 p2i((void*) entry)); 2604 } 2605 } 2606 2607 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_NULL); 2608 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop); 2609 runtime->init_JavaVM_info(info, JVMCI_CHECK_NULL); 2610 return info; 2611 C2V_END 2612 2613 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm)) 2614 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) { 2615 // Called from unattached JVMCI shared library thread 2616 return false; 2617 } 2618 if (thread->jni_environment() == env) { 2619 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject)) 2620 JVMCITraceMark jtm("isCurrentThreadAttached"); 2621 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2622 JVMCIRuntime* runtime = thread->libjvmci_runtime(); 2623 if (runtime == nullptr || !runtime->has_shared_library_javavm()) { 2624 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached"); 2625 } 2626 JNIEnv* peerEnv; 2627 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK; 2628 } 2629 return true; 2630 C2V_END 2631 2632 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm)) 2633 if (thread == nullptr) { 2634 // Called from unattached JVMCI shared library thread 2635 return 0L; 2636 } 2637 return (jlong) p2i(thread); 2638 C2V_END 2639 2640 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime. 2641 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) { 2642 JavaVM* javaVM = nullptr; 2643 jint res = env->GetJavaVM(&javaVM); 2644 if (res != JNI_OK) { 2645 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res)); 2646 } 2647 extern struct JavaVM_ main_vm; 2648 JNIEnv* hotspotEnv; 2649 2650 int name_len = env->GetArrayLength(name); 2651 char name_buf[64]; // Cannot use Resource heap as it requires a current thread 2652 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1); 2653 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf); 2654 name_buf[to_copy] = '\0'; 2655 JavaVMAttachArgs attach_args; 2656 attach_args.version = JNI_VERSION_1_2; 2657 attach_args.name = name_buf; 2658 attach_args.group = nullptr; 2659 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) : 2660 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args); 2661 if (res != JNI_OK) { 2662 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res)); 2663 } 2664 JavaThread* thread = JavaThread::thread_from_jni_environment(hotspotEnv); 2665 const char* attach_error; 2666 { 2667 // Transition to VM 2668 JVMCI_VM_ENTRY_MARK 2669 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM); 2670 // Transition back to Native 2671 } 2672 if (attach_error != nullptr) { 2673 JNI_THROW("attachCurrentThread", InternalError, attach_error); 2674 } 2675 } 2676 2677 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info)) 2678 if (thread == nullptr) { 2679 attachSharedLibraryThread(env, name, as_daemon); 2680 return true; 2681 } 2682 if (thread->jni_environment() == env) { 2683 // Called from HotSpot 2684 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean)) 2685 JVMCITraceMark jtm("attachCurrentThread"); 2686 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2687 2688 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread); 2689 JNIEnv* peerJNIEnv; 2690 if (runtime->has_shared_library_javavm()) { 2691 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) { 2692 // Already attached 2693 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0); 2694 return false; 2695 } 2696 } 2697 2698 { 2699 // Ensure the JVMCI shared library runtime is initialized. 2700 PEER_JVMCIENV_FROM_THREAD(THREAD, false); 2701 PEER_JVMCIENV->check_init(JVMCI_CHECK_0); 2702 2703 HandleMark hm(thread); 2704 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(PEER_JVMCIENV); 2705 if (PEER_JVMCIENV->has_pending_exception()) { 2706 PEER_JVMCIENV->describe_pending_exception(tty); 2707 } 2708 char* sl_path; 2709 if (JVMCI::get_shared_library(sl_path, false) == nullptr) { 2710 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime"); 2711 } 2712 } 2713 2714 JavaVMAttachArgs attach_args; 2715 attach_args.version = JNI_VERSION_1_2; 2716 attach_args.name = const_cast<char*>(thread->name()); 2717 attach_args.group = nullptr; 2718 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) { 2719 return false; 2720 } 2721 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) : 2722 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args); 2723 2724 if (res == JNI_OK) { 2725 guarantee(peerJNIEnv != nullptr, "must be"); 2726 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0); 2727 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id()); 2728 return true; 2729 } 2730 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name)); 2731 } 2732 // Called from JVMCI shared library 2733 return false; 2734 C2V_END 2735 2736 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release)) 2737 if (thread == nullptr) { 2738 // Called from unattached JVMCI shared library thread 2739 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false); 2740 } 2741 if (thread->jni_environment() == env) { 2742 // Called from HotSpot 2743 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject)) 2744 JVMCITraceMark jtm("detachCurrentThread"); 2745 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2746 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0); 2747 JVMCIRuntime* runtime = thread->libjvmci_runtime(); 2748 if (runtime == nullptr || !runtime->has_shared_library_javavm()) { 2749 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread"); 2750 } 2751 JNIEnv* peerEnv; 2752 2753 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) { 2754 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name())); 2755 } 2756 jint res = runtime->DetachCurrentThread(thread); 2757 if (res != JNI_OK) { 2758 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name())); 2759 } 2760 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d", 2761 runtime->get_shared_library_javavm_id(), runtime->id()); 2762 if (release) { 2763 return runtime->detach_thread(thread, "user thread detach"); 2764 } 2765 } else { 2766 // Called from attached JVMCI shared library thread 2767 if (release) { 2768 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false); 2769 } 2770 JVMCIRuntime* runtime = thread->libjvmci_runtime(); 2771 if (runtime == nullptr) { 2772 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false); 2773 } 2774 { 2775 // Transition to VM 2776 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject)) 2777 // Cannot destroy shared library JavaVM as we're about to return to it. 2778 runtime->detach_thread(thread, "shared library thread detach", false); 2779 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM"); 2780 // Transition back to Native 2781 } 2782 extern struct JavaVM_ main_vm; 2783 jint res = main_vm.DetachCurrentThread(); 2784 if (res != JNI_OK) { 2785 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false); 2786 } 2787 } 2788 return false; 2789 C2V_END 2790 2791 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation)) 2792 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2793 if (obj_handle == nullptr) { 2794 return 0L; 2795 } 2796 PEER_JVMCIENV_FROM_THREAD(THREAD, !JVMCIENV->is_hotspot()); 2797 CompilerThreadCanCallJava canCallJava(thread, PEER_JVMCIENV->is_hotspot()); 2798 PEER_JVMCIENV->check_init(JVMCI_CHECK_0); 2799 2800 JVMCIEnv* thisEnv = JVMCIENV; 2801 JVMCIObject obj = thisEnv->wrap(obj_handle); 2802 JVMCIObject result; 2803 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) { 2804 methodHandle method(THREAD, thisEnv->asMethod(obj)); 2805 result = PEER_JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_0); 2806 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) { 2807 Klass* klass = thisEnv->asKlass(obj); 2808 JVMCIKlassHandle klass_handle(THREAD); 2809 klass_handle = klass; 2810 result = PEER_JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_0); 2811 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) { 2812 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0); 2813 result = PEER_JVMCIENV->get_jvmci_primitive_type(type); 2814 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) || 2815 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) { 2816 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0); 2817 result = PEER_JVMCIENV->get_object_constant(constant()); 2818 } else if (thisEnv->isa_HotSpotNmethod(obj)) { 2819 if (PEER_JVMCIENV->is_hotspot()) { 2820 JVMCINMethodHandle nmethod_handle(THREAD); 2821 nmethod* nm = JVMCIENV->get_nmethod(obj, nmethod_handle); 2822 if (nm != nullptr) { 2823 JVMCINMethodData* data = nm->jvmci_nmethod_data(); 2824 if (data != nullptr) { 2825 // Only the mirror in the HotSpot heap is accessible 2826 // through JVMCINMethodData 2827 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true); 2828 if (nmethod_mirror != nullptr) { 2829 result = HotSpotJVMCI::wrap(nmethod_mirror); 2830 } 2831 } 2832 } 2833 } 2834 2835 if (result.is_null()) { 2836 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj); 2837 methodHandle mh(THREAD, thisEnv->asMethod(methodObject)); 2838 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj); 2839 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj); 2840 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj); 2841 const char* cstring = name_string.is_null() ? nullptr : thisEnv->as_utf8_string(name_string); 2842 // Create a new HotSpotNmethod instance in the peer runtime 2843 result = PEER_JVMCIENV->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0); 2844 JVMCINMethodHandle nmethod_handle(THREAD); 2845 nmethod* nm = JVMCIENV->get_nmethod(obj, nmethod_handle); 2846 if (result.is_null()) { 2847 // exception occurred (e.g. OOME) creating a new HotSpotNmethod 2848 } else if (nm == nullptr) { 2849 // nmethod must have been unloaded 2850 } else { 2851 // Link the new HotSpotNmethod to the nmethod 2852 PEER_JVMCIENV->initialize_installed_code(result, nm, JVMCI_CHECK_0); 2853 // Only non-default HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime. 2854 if (!isDefault && PEER_JVMCIENV->is_hotspot()) { 2855 JVMCINMethodData* data = nm->jvmci_nmethod_data(); 2856 if (data == nullptr) { 2857 JVMCI_THROW_MSG_0(IllegalArgumentException, "Missing HotSpotNmethod data"); 2858 } 2859 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != nullptr) { 2860 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod"); 2861 } 2862 oop nmethod_mirror = HotSpotJVMCI::resolve(result); 2863 data->set_nmethod_mirror(nm, nmethod_mirror); 2864 } 2865 } 2866 } 2867 } else { 2868 JVMCI_THROW_MSG_0(IllegalArgumentException, 2869 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj))); 2870 } 2871 if (callPostTranslation) { 2872 PEER_JVMCIENV->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0); 2873 } 2874 // Propagate any exception that occurred while creating the translated object 2875 if (PEER_JVMCIENV->transfer_pending_exception(thread, thisEnv)) { 2876 return 0L; 2877 } 2878 return (jlong) PEER_JVMCIENV->make_global(result).as_jobject(); 2879 C2V_END 2880 2881 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle)) 2882 requireJVMCINativeLibrary(JVMCI_CHECK_NULL); 2883 if (obj_handle == 0L) { 2884 return nullptr; 2885 } 2886 jobject global_handle = (jobject) obj_handle; 2887 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle); 2888 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject(); 2889 2890 JVMCIENV->destroy_global(global_handle_obj); 2891 return result; 2892 C2V_END 2893 2894 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle)) 2895 JVMCIObject code = JVMCIENV->wrap(code_handle); 2896 // Execute this operation for the side effect of updating the InstalledCode state 2897 JVMCINMethodHandle nmethod_handle(THREAD); 2898 JVMCIENV->get_nmethod(code, nmethod_handle); 2899 C2V_END 2900 2901 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle)) 2902 JVMCIObject code = JVMCIENV->wrap(code_handle); 2903 CodeBlob* cb = JVMCIENV->get_code_blob(code); 2904 if (cb == nullptr) { 2905 return nullptr; 2906 } 2907 // Make a resource copy of code before the allocation causes a safepoint 2908 int code_size = cb->code_size(); 2909 jbyte* code_bytes = NEW_RESOURCE_ARRAY(jbyte, code_size); 2910 memcpy(code_bytes, (jbyte*) cb->code_begin(), code_size); 2911 2912 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL); 2913 JVMCIENV->copy_bytes_from(code_bytes, result, 0, code_size); 2914 return JVMCIENV->get_jbyteArray(result); 2915 C2V_END 2916 2917 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 2918 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL); 2919 methodHandle m(THREAD, UNPACK_PAIR(Method, method)); 2920 oop executable; 2921 if (m->is_object_initializer()) { 2922 executable = Reflection::new_constructor(m, CHECK_NULL); 2923 } else if (m->is_static_initializer()) { 2924 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2925 "Cannot create java.lang.reflect.Method for class initializer"); 2926 } else { 2927 executable = Reflection::new_method(m, false, CHECK_NULL); 2928 } 2929 return JNIHandles::make_local(THREAD, executable); 2930 C2V_END 2931 2932 static InstanceKlass* check_field(Klass* klass, jint index, JVMCI_TRAPS) { 2933 if (!klass->is_instance_klass()) { 2934 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2935 err_msg("Expected non-primitive type, got %s", klass->external_name())); 2936 } 2937 InstanceKlass* iklass = InstanceKlass::cast(klass); 2938 if (index < 0 || index > iklass->total_fields_count()) { 2939 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2940 err_msg("Field index %d out of bounds for %s", index, klass->external_name())); 2941 } 2942 return iklass; 2943 } 2944 2945 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index)) 2946 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL); 2947 Klass* klass = UNPACK_PAIR(Klass, klass); 2948 InstanceKlass* iklass = check_field(klass, index, JVMCIENV); 2949 fieldDescriptor fd(iklass, index); 2950 oop reflected = Reflection::new_field(&fd, CHECK_NULL); 2951 return JNIHandles::make_local(THREAD, reflected); 2952 C2V_END 2953 2954 static jbyteArray get_encoded_annotation_data(InstanceKlass* holder, AnnotationArray* annotations_array, bool for_class, 2955 jint filter_length, jlong filter_klass_pointers, 2956 JavaThread* THREAD, JVMCIEnv* JVMCIENV) { 2957 // Get a ConstantPool object for annotation parsing 2958 Handle jcp = reflect_ConstantPool::create(CHECK_NULL); 2959 reflect_ConstantPool::set_cp(jcp(), holder->constants()); 2960 2961 // load VMSupport 2962 Symbol* klass = vmSymbols::jdk_internal_vm_VMSupport(); 2963 Klass* k = SystemDictionary::resolve_or_fail(klass, true, CHECK_NULL); 2964 2965 InstanceKlass* vm_support = InstanceKlass::cast(k); 2966 if (vm_support->should_be_initialized()) { 2967 vm_support->initialize(CHECK_NULL); 2968 } 2969 2970 typeArrayOop annotations_oop = Annotations::make_java_array(annotations_array, CHECK_NULL); 2971 typeArrayHandle annotations = typeArrayHandle(THREAD, annotations_oop); 2972 2973 InstanceKlass** filter = filter_length == 1 ? 2974 (InstanceKlass**) &filter_klass_pointers: 2975 (InstanceKlass**) filter_klass_pointers; 2976 objArrayOop filter_oop = oopFactory::new_objArray(vmClasses::Class_klass(), filter_length, CHECK_NULL); 2977 objArrayHandle filter_classes(THREAD, filter_oop); 2978 for (int i = 0; i < filter_length; i++) { 2979 filter_classes->obj_at_put(i, filter[i]->java_mirror()); 2980 } 2981 2982 // invoke VMSupport.encodeAnnotations 2983 JavaValue result(T_OBJECT); 2984 JavaCallArguments args; 2985 args.push_oop(annotations); 2986 args.push_oop(Handle(THREAD, holder->java_mirror())); 2987 args.push_oop(jcp); 2988 args.push_int(for_class); 2989 args.push_oop(filter_classes); 2990 Symbol* signature = vmSymbols::encodeAnnotations_signature(); 2991 JavaCalls::call_static(&result, 2992 vm_support, 2993 vmSymbols::encodeAnnotations_name(), 2994 signature, 2995 &args, 2996 CHECK_NULL); 2997 2998 oop res = result.get_oop(); 2999 if (JVMCIENV->is_hotspot()) { 3000 return (jbyteArray) JNIHandles::make_local(THREAD, res); 3001 } 3002 3003 typeArrayOop ba = typeArrayOop(res); 3004 int ba_len = ba->length(); 3005 jbyte* ba_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jbyte, ba_len); 3006 if (ba_buf == nullptr) { 3007 JVMCI_THROW_MSG_NULL(InternalError, 3008 err_msg("could not allocate %d bytes", ba_len)); 3009 3010 } 3011 memcpy(ba_buf, ba->byte_at_addr(0), ba_len); 3012 JVMCIPrimitiveArray ba_dest = JVMCIENV->new_byteArray(ba_len, JVMCI_CHECK_NULL); 3013 JVMCIENV->copy_bytes_from(ba_buf, ba_dest, 0, ba_len); 3014 return JVMCIENV->get_jbyteArray(ba_dest); 3015 } 3016 3017 C2V_VMENTRY_NULL(jbyteArray, getEncodedClassAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), 3018 jobject filter, jint filter_length, jlong filter_klass_pointers)) 3019 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support 3020 InstanceKlass* holder = InstanceKlass::cast(UNPACK_PAIR(Klass, klass)); 3021 return get_encoded_annotation_data(holder, holder->class_annotations(), true, filter_length, filter_klass_pointers, THREAD, JVMCIENV); 3022 C2V_END 3023 3024 C2V_VMENTRY_NULL(jbyteArray, getEncodedExecutableAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), 3025 jobject filter, jint filter_length, jlong filter_klass_pointers)) 3026 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support 3027 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 3028 return get_encoded_annotation_data(method->method_holder(), method->annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV); 3029 C2V_END 3030 3031 C2V_VMENTRY_NULL(jbyteArray, getEncodedFieldAnnotationData, (JNIEnv* env, jobject, ARGUMENT_PAIR(klass), jint index, 3032 jobject filter, jint filter_length, jlong filter_klass_pointers)) 3033 CompilerThreadCanCallJava canCallJava(thread, true); // Requires Java support 3034 InstanceKlass* holder = check_field(InstanceKlass::cast(UNPACK_PAIR(Klass, klass)), index, JVMCIENV); 3035 fieldDescriptor fd(holder, index); 3036 return get_encoded_annotation_data(holder, fd.annotations(), false, filter_length, filter_klass_pointers, THREAD, JVMCIENV); 3037 C2V_END 3038 3039 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current)) 3040 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address); 3041 int result_length = 0; 3042 for (FailedSpeculation* fs = head; fs != nullptr; fs = fs->next()) { 3043 result_length++; 3044 } 3045 int current_length = 0; 3046 JVMCIObjectArray current_array = nullptr; 3047 if (current != nullptr) { 3048 current_array = JVMCIENV->wrap(current); 3049 current_length = JVMCIENV->get_length(current_array); 3050 if (current_length == result_length) { 3051 // No new failures 3052 return current; 3053 } 3054 } 3055 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL); 3056 int result_index = 0; 3057 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) { 3058 assert(fs != nullptr, "npe"); 3059 JVMCIPrimitiveArray entry; 3060 if (result_index < current_length) { 3061 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index); 3062 } else { 3063 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL); 3064 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len()); 3065 } 3066 JVMCIENV->put_object_at(result, result_index++, entry); 3067 } 3068 return JVMCIENV->get_jobjectArray(result); 3069 C2V_END 3070 3071 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, ARGUMENT_PAIR(method))) 3072 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 3073 MethodData* method_data = get_profiling_method_data(method, CHECK_0); 3074 return (jlong) method_data->get_failed_speculations_address(); 3075 C2V_END 3076 3077 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address)) 3078 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address); 3079 C2V_END 3080 3081 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj)) 3082 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj); 3083 int speculation_len = JVMCIENV->get_length(speculation_handle); 3084 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len); 3085 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len); 3086 return FailedSpeculation::add_failed_speculation(nullptr, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len); 3087 C2V_END 3088 3089 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status)) 3090 if (!JVMCIENV->is_hotspot()) { 3091 // It's generally not safe to call Java code before the module system is initialized 3092 if (!Universe::is_module_initialized()) { 3093 JVMCI_event_1("callSystemExit(%d) before Universe::is_module_initialized() -> direct VM exit", status); 3094 vm_exit_during_initialization(); 3095 } 3096 } 3097 CompilerThreadCanCallJava canCallJava(thread, true); 3098 JavaValue result(T_VOID); 3099 JavaCallArguments jargs(1); 3100 jargs.push_int(status); 3101 JavaCalls::call_static(&result, 3102 vmClasses::System_klass(), 3103 vmSymbols::exit_method_name(), 3104 vmSymbols::int_void_signature(), 3105 &jargs, 3106 CHECK); 3107 C2V_END 3108 3109 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject)) 3110 return CompilerEvent::ticksNow(); 3111 C2V_END 3112 3113 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name)) 3114 #if INCLUDE_JFR 3115 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name); 3116 const char *name = JVMCIENV->as_utf8_string(phase_name); 3117 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true); 3118 #else 3119 return -1; 3120 #endif // !INCLUDE_JFR 3121 C2V_END 3122 3123 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level)) 3124 EventCompilerPhase event(UNTIMED); 3125 if (event.should_commit()) { 3126 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level); 3127 } 3128 C2V_END 3129 3130 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, ARGUMENT_PAIR(caller), ARGUMENT_PAIR(callee), jboolean succeeded, jstring jmessage, jint bci)) 3131 EventCompilerInlining event; 3132 if (event.should_commit()) { 3133 Method* caller = UNPACK_PAIR(Method, caller); 3134 Method* callee = UNPACK_PAIR(Method, callee); 3135 JVMCIObject message = JVMCIENV->wrap(jmessage); 3136 CompilerEvent::InlineEvent::post(event, compileId, caller, callee, succeeded, JVMCIENV->as_utf8_string(message), bci); 3137 } 3138 C2V_END 3139 3140 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value)) 3141 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK); 3142 if (id == 0) { 3143 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value)); 3144 return; 3145 } 3146 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 3147 err_msg("%d is not a valid thread local id", id)); 3148 C2V_END 3149 3150 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id)) 3151 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL); 3152 if (id == 0) { 3153 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0()); 3154 } 3155 THROW_MSG_NULL(vmSymbols::java_lang_IllegalArgumentException(), 3156 err_msg("%d is not a valid thread local id", id)); 3157 C2V_END 3158 3159 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value)) 3160 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK); 3161 if (id == 0) { 3162 thread->set_jvmci_reserved0(value); 3163 } else if (id == 1) { 3164 thread->set_jvmci_reserved1(value); 3165 } else { 3166 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 3167 err_msg("%d is not a valid thread local id", id)); 3168 } 3169 C2V_END 3170 3171 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id)) 3172 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0); 3173 if (id == 0) { 3174 return thread->get_jvmci_reserved0(); 3175 } else if (id == 1) { 3176 return thread->get_jvmci_reserved1(); 3177 } else { 3178 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 3179 err_msg("%d is not a valid thread local id", id)); 3180 } 3181 C2V_END 3182 3183 C2V_VMENTRY(void, getOopMapAt, (JNIEnv* env, jobject, ARGUMENT_PAIR(method), 3184 jint bci, jlongArray oop_map_handle)) 3185 methodHandle method(THREAD, UNPACK_PAIR(Method, method)); 3186 if (bci < 0 || bci >= method->code_size()) { 3187 JVMCI_THROW_MSG(IllegalArgumentException, 3188 err_msg("bci %d is out of bounds [0 .. %d)", bci, method->code_size())); 3189 } 3190 InterpreterOopMap mask; 3191 OopMapCache::compute_one_oop_map(method, bci, &mask); 3192 if (!mask.has_valid_mask()) { 3193 JVMCI_THROW_MSG(IllegalArgumentException, err_msg("bci %d is not valid", bci)); 3194 } 3195 if (mask.number_of_entries() == 0) { 3196 return; 3197 } 3198 3199 int nslots = method->max_locals() + method->max_stack(); 3200 int nwords = ((nslots - 1) / 64) + 1; 3201 JVMCIPrimitiveArray oop_map = JVMCIENV->wrap(oop_map_handle); 3202 int oop_map_len = JVMCIENV->get_length(oop_map); 3203 if (nwords > oop_map_len) { 3204 JVMCI_THROW_MSG(IllegalArgumentException, 3205 err_msg("oop map too short: %d > %d", nwords, oop_map_len)); 3206 } 3207 3208 jlong* oop_map_buf = NEW_RESOURCE_ARRAY_IN_THREAD_RETURN_NULL(THREAD, jlong, nwords); 3209 if (oop_map_buf == nullptr) { 3210 JVMCI_THROW_MSG(InternalError, err_msg("could not allocate %d longs", nwords)); 3211 } 3212 for (int i = 0; i < nwords; i++) { 3213 oop_map_buf[i] = 0L; 3214 } 3215 3216 BitMapView oop_map_view = BitMapView((BitMap::bm_word_t*) oop_map_buf, nwords * BitsPerLong); 3217 for (int i = 0; i < nslots; i++) { 3218 if (mask.is_oop(i)) { 3219 oop_map_view.set_bit(i); 3220 } 3221 } 3222 JVMCIENV->copy_longs_from((jlong*)oop_map_buf, oop_map, 0, nwords); 3223 C2V_END 3224 3225 C2V_VMENTRY_0(jint, getCompilationActivityMode, (JNIEnv* env, jobject)) 3226 return CompileBroker::get_compilation_activity_mode(); 3227 } 3228 3229 #define CC (char*) /*cast a literal from (const char*)*/ 3230 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f)) 3231 3232 #define STRING "Ljava/lang/String;" 3233 #define OBJECT "Ljava/lang/Object;" 3234 #define CLASS "Ljava/lang/Class;" 3235 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;" 3236 #define EXECUTABLE "Ljava/lang/reflect/Executable;" 3237 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;" 3238 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;" 3239 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;" 3240 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;" 3241 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;" 3242 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;" 3243 #define FIELDINFO "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl$FieldInfo;" 3244 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;" 3245 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;" 3246 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;" 3247 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;" 3248 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;" 3249 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;" 3250 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;" 3251 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;" 3252 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;" 3253 3254 // Types wrapping VM pointers. The ...2 macro is for a pair: (wrapper, pointer) 3255 #define HS_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;" 3256 #define HS_METHOD2 "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;J" 3257 #define HS_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;" 3258 #define HS_KLASS2 "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;J" 3259 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;" 3260 #define HS_CONSTANT_POOL2 "Ljdk/vm/ci/hotspot/HotSpotConstantPool;J" 3261 3262 JNINativeMethod CompilerToVM::methods[] = { 3263 {CC "getBytecode", CC "(" HS_METHOD2 ")[B", FN_PTR(getBytecode)}, 3264 {CC "getExceptionTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getExceptionTableStart)}, 3265 {CC "getExceptionTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getExceptionTableLength)}, 3266 {CC "findUniqueConcreteMethod", CC "(" HS_KLASS2 HS_METHOD2 ")" HS_METHOD, FN_PTR(findUniqueConcreteMethod)}, 3267 {CC "getImplementor", CC "(" HS_KLASS2 ")" HS_KLASS, FN_PTR(getImplementor)}, 3268 {CC "getStackTraceElement", CC "(" HS_METHOD2 "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)}, 3269 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_METHOD2 ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)}, 3270 {CC "setNotInlinableOrCompilable", CC "(" HS_METHOD2 ")V", FN_PTR(setNotInlinableOrCompilable)}, 3271 {CC "isCompilable", CC "(" HS_METHOD2 ")Z", FN_PTR(isCompilable)}, 3272 {CC "hasNeverInlineDirective", CC "(" HS_METHOD2 ")Z", FN_PTR(hasNeverInlineDirective)}, 3273 {CC "shouldInlineMethod", CC "(" HS_METHOD2 ")Z", FN_PTR(shouldInlineMethod)}, 3274 {CC "lookupType", CC "(" STRING HS_KLASS2 "IZ)" HS_RESOLVED_TYPE, FN_PTR(lookupType)}, 3275 {CC "lookupJClass", CC "(J)" HS_RESOLVED_TYPE, FN_PTR(lookupJClass)}, 3276 {CC "getJObjectValue", CC "(" OBJECTCONSTANT ")J", FN_PTR(getJObjectValue)}, 3277 {CC "getArrayType", CC "(C" HS_KLASS2 ")" HS_KLASS, FN_PTR(getArrayType)}, 3278 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)}, 3279 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupNameInPool)}, 3280 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupNameAndTypeRefIndexInPool)}, 3281 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL2 "II)" STRING, FN_PTR(lookupSignatureInPool)}, 3282 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(lookupKlassRefIndexInPool)}, 3283 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL2 "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)}, 3284 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL2 "II)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)}, 3285 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL2 "IB" HS_METHOD2 ")" HS_METHOD, FN_PTR(lookupMethodInPool)}, 3286 {CC "lookupConstantInPool", CC "(" HS_CONSTANT_POOL2 "IZ)" JAVACONSTANT, FN_PTR(lookupConstantInPool)}, 3287 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL2 "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)}, 3288 {CC "bootstrapArgumentIndexAt", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(bootstrapArgumentIndexAt)}, 3289 {CC "getUncachedStringInPool", CC "(" HS_CONSTANT_POOL2 "I)" JAVACONSTANT, FN_PTR(getUncachedStringInPool)}, 3290 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL2 "I)" HS_KLASS, FN_PTR(resolveTypeInPool)}, 3291 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL2 "I" HS_METHOD2 "B[I)" HS_KLASS, FN_PTR(resolveFieldInPool)}, 3292 {CC "decodeFieldIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeFieldIndexToCPIndex)}, 3293 {CC "decodeMethodIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "I)I", FN_PTR(decodeMethodIndexToCPIndex)}, 3294 {CC "decodeIndyIndexToCPIndex", CC "(" HS_CONSTANT_POOL2 "IZ)I", FN_PTR(decodeIndyIndexToCPIndex)}, 3295 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "I)V", FN_PTR(resolveInvokeHandleInPool)}, 3296 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL2 "II)I", FN_PTR(isResolvedInvokeHandleInPool)}, 3297 {CC "resolveMethod", CC "(" HS_KLASS2 HS_METHOD2 HS_KLASS2 ")" HS_METHOD, FN_PTR(resolveMethod)}, 3298 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)}, 3299 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_KLASS2 HS_METHOD2 ")I", FN_PTR(getVtableIndexForInterfaceMethod)}, 3300 {CC "getClassInitializer", CC "(" HS_KLASS2 ")" HS_METHOD, FN_PTR(getClassInitializer)}, 3301 {CC "hasFinalizableSubclass", CC "(" HS_KLASS2 ")Z", FN_PTR(hasFinalizableSubclass)}, 3302 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)}, 3303 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_METHOD, FN_PTR(asResolvedJavaMethod)}, 3304 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_METHOD, FN_PTR(getResolvedJavaMethod)}, 3305 {CC "getConstantPool", CC "(" OBJECT "JZ)" HS_CONSTANT_POOL, FN_PTR(getConstantPool)}, 3306 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_KLASS, FN_PTR(getResolvedJavaType0)}, 3307 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)}, 3308 {CC "installCode0", CC "(JJZ" HS_COMPILED_CODE "[" OBJECT INSTALLED_CODE "J[B)I", FN_PTR(installCode0)}, 3309 {CC "getInstallCodeFlags", CC "()I", FN_PTR(getInstallCodeFlags)}, 3310 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)}, 3311 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)}, 3312 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)}, 3313 {CC "getLineNumberTable", CC "(" HS_METHOD2 ")[J", FN_PTR(getLineNumberTable)}, 3314 {CC "getLocalVariableTableStart", CC "(" HS_METHOD2 ")J", FN_PTR(getLocalVariableTableStart)}, 3315 {CC "getLocalVariableTableLength", CC "(" HS_METHOD2 ")I", FN_PTR(getLocalVariableTableLength)}, 3316 {CC "reprofile", CC "(" HS_METHOD2 ")V", FN_PTR(reprofile)}, 3317 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD "Z)V", FN_PTR(invalidateHotSpotNmethod)}, 3318 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)}, 3319 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)}, 3320 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)}, 3321 {CC "allocateCompileId", CC "(" HS_METHOD2 "I)I", FN_PTR(allocateCompileId)}, 3322 {CC "isMature", CC "(J)Z", FN_PTR(isMature)}, 3323 {CC "hasCompiledCodeForOSR", CC "(" HS_METHOD2 "II)Z", FN_PTR(hasCompiledCodeForOSR)}, 3324 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)}, 3325 {CC "getSignatureName", CC "(J)" STRING, FN_PTR(getSignatureName)}, 3326 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)}, 3327 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)}, 3328 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)}, 3329 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)}, 3330 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)}, 3331 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)}, 3332 {CC "methodDataExceptionSeen", CC "(JI)I", FN_PTR(methodDataExceptionSeen)}, 3333 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)}, 3334 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)}, 3335 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)}, 3336 {CC "getInterfaces", CC "(" HS_KLASS2 ")[" HS_KLASS, FN_PTR(getInterfaces)}, 3337 {CC "getComponentType", CC "(" HS_KLASS2 ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)}, 3338 {CC "ensureInitialized", CC "(" HS_KLASS2 ")V", FN_PTR(ensureInitialized)}, 3339 {CC "ensureLinked", CC "(" HS_KLASS2 ")V", FN_PTR(ensureLinked)}, 3340 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)}, 3341 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)}, 3342 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)}, 3343 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)}, 3344 {CC "getDeclaredConstructors", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)}, 3345 {CC "getDeclaredMethods", CC "(" HS_KLASS2 ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)}, 3346 {CC "getDeclaredFieldsInfo", CC "(" HS_KLASS2 ")[" FIELDINFO, FN_PTR(getDeclaredFieldsInfo)}, 3347 {CC "readStaticFieldValue", CC "(" HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readStaticFieldValue)}, 3348 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_KLASS2 "JC)" JAVACONSTANT, FN_PTR(readFieldValue)}, 3349 {CC "isInstance", CC "(" HS_KLASS2 OBJECTCONSTANT ")Z", FN_PTR(isInstance)}, 3350 {CC "isAssignableFrom", CC "(" HS_KLASS2 HS_KLASS2 ")Z", FN_PTR(isAssignableFrom)}, 3351 {CC "isTrustedForIntrinsics", CC "(" HS_KLASS2 ")Z", FN_PTR(isTrustedForIntrinsics)}, 3352 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)}, 3353 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)}, 3354 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)}, 3355 {CC "getJavaMirror", CC "(" HS_KLASS2 ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)}, 3356 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)}, 3357 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)}, 3358 {CC "arrayBaseOffset", CC "(C)I", FN_PTR(arrayBaseOffset)}, 3359 {CC "arrayIndexScale", CC "(C)I", FN_PTR(arrayIndexScale)}, 3360 {CC "clearOopHandle", CC "(J)V", FN_PTR(clearOopHandle)}, 3361 {CC "releaseClearedOopHandles", CC "()V", FN_PTR(releaseClearedOopHandles)}, 3362 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)}, 3363 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)}, 3364 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)}, 3365 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)}, 3366 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)}, 3367 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)}, 3368 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)}, 3369 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)}, 3370 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)}, 3371 {CC "asReflectionExecutable", CC "(" HS_METHOD2 ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)}, 3372 {CC "asReflectionField", CC "(" HS_KLASS2 "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)}, 3373 {CC "getEncodedClassAnnotationData", CC "(" HS_KLASS2 OBJECT "IJ)[B", FN_PTR(getEncodedClassAnnotationData)}, 3374 {CC "getEncodedExecutableAnnotationData", CC "(" HS_METHOD2 OBJECT "IJ)[B", FN_PTR(getEncodedExecutableAnnotationData)}, 3375 {CC "getEncodedFieldAnnotationData", CC "(" HS_KLASS2 "I" OBJECT "IJ)[B", FN_PTR(getEncodedFieldAnnotationData)}, 3376 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)}, 3377 {CC "getFailedSpeculationsAddress", CC "(" HS_METHOD2 ")J", FN_PTR(getFailedSpeculationsAddress)}, 3378 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)}, 3379 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)}, 3380 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)}, 3381 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)}, 3382 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)}, 3383 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)}, 3384 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)}, 3385 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)}, 3386 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)}, 3387 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)}, 3388 {CC "notifyCompilerInliningEvent", CC "(I" HS_METHOD2 HS_METHOD2 "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)}, 3389 {CC "getOopMapAt", CC "(" HS_METHOD2 "I[J)V", FN_PTR(getOopMapAt)}, 3390 {CC "updateCompilerThreadCanCallJava", CC "(Z)Z", FN_PTR(updateCompilerThreadCanCallJava)}, 3391 {CC "getCompilationActivityMode", CC "()I", FN_PTR(getCompilationActivityMode)}, 3392 }; 3393 3394 int CompilerToVM::methods_count() { 3395 return sizeof(methods) / sizeof(JNINativeMethod); 3396 }