1 /* 2 * Copyright (c) 2011, 2022, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include "precompiled.hpp" 25 #include "classfile/classLoaderData.inline.hpp" 26 #include "classfile/javaClasses.inline.hpp" 27 #include "classfile/stringTable.hpp" 28 #include "classfile/symbolTable.hpp" 29 #include "classfile/systemDictionary.hpp" 30 #include "classfile/vmClasses.hpp" 31 #include "code/scopeDesc.hpp" 32 #include "compiler/compileBroker.hpp" 33 #include "compiler/compilerEvent.hpp" 34 #include "compiler/disassembler.hpp" 35 #include "compiler/oopMap.hpp" 36 #include "interpreter/linkResolver.hpp" 37 #include "interpreter/bytecodeStream.hpp" 38 #include "jfr/jfrEvents.hpp" 39 #include "jvmci/jvmciCompilerToVM.hpp" 40 #include "jvmci/jvmciCodeInstaller.hpp" 41 #include "jvmci/jvmciRuntime.hpp" 42 #include "logging/log.hpp" 43 #include "logging/logTag.hpp" 44 #include "memory/oopFactory.hpp" 45 #include "memory/universe.hpp" 46 #include "oops/constantPool.inline.hpp" 47 #include "oops/instanceMirrorKlass.hpp" 48 #include "oops/instanceKlass.inline.hpp" 49 #include "oops/method.inline.hpp" 50 #include "oops/typeArrayOop.inline.hpp" 51 #include "prims/jvmtiExport.hpp" 52 #include "prims/methodHandles.hpp" 53 #include "prims/nativeLookup.hpp" 54 #include "runtime/atomic.hpp" 55 #include "runtime/deoptimization.hpp" 56 #include "runtime/fieldDescriptor.inline.hpp" 57 #include "runtime/frame.inline.hpp" 58 #include "runtime/globals_extension.hpp" 59 #include "runtime/interfaceSupport.inline.hpp" 60 #include "runtime/jniHandles.inline.hpp" 61 #include "runtime/reflectionUtils.hpp" 62 #include "runtime/stackFrameStream.inline.hpp" 63 #include "runtime/timerTrace.hpp" 64 #include "runtime/vframe_hp.hpp" 65 #include "runtime/vframe.inline.hpp" 66 67 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) { 68 _thread = thread; 69 _klass = klass; 70 if (klass != NULL) { 71 _holder = Handle(_thread, klass->klass_holder()); 72 } 73 } 74 75 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) { 76 _klass = klass; 77 if (klass != NULL) { 78 _holder = Handle(_thread, klass->klass_holder()); 79 } 80 return *this; 81 } 82 83 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) { 84 if (!JVMCIENV->is_hotspot()) { 85 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller)); 86 } 87 } 88 89 class JVMCITraceMark : public StackObj { 90 const char* _msg; 91 public: 92 JVMCITraceMark(const char* msg) { 93 _msg = msg; 94 JVMCI_event_2("Enter %s", _msg); 95 } 96 ~JVMCITraceMark() { 97 JVMCI_event_2(" Exit %s", _msg); 98 } 99 }; 100 101 102 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) { 103 assert(_index < _args->length(), "out of bounds"); 104 oop arg=((objArrayOop) (_args))->obj_at(_index++); 105 assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch"); 106 return Handle(Thread::current(), arg); 107 } 108 109 // Bring the JVMCI compiler thread into the VM state. 110 #define JVMCI_VM_ENTRY_MARK \ 111 MACOS_AARCH64_ONLY(ThreadWXEnable __wx(WXWrite, thread)); \ 112 ThreadInVMfromNative __tiv(thread); \ 113 HandleMarkCleaner __hm(thread); \ 114 JavaThread* THREAD = thread; \ 115 debug_only(VMNativeEntryWrapper __vew;) 116 117 // Native method block that transitions current thread to '_thread_in_vm'. 118 #define C2V_BLOCK(result_type, name, signature) \ 119 JVMCI_VM_ENTRY_MARK; \ 120 ResourceMark rm; \ 121 JNI_JVMCIENV(JVMCI::compilation_tick(thread), env); 122 123 static JavaThread* get_current_thread(bool allow_null=true) { 124 Thread* thread = Thread::current_or_null_safe(); 125 if (thread == NULL) { 126 assert(allow_null, "npe"); 127 return NULL; 128 } 129 return JavaThread::cast(thread); 130 } 131 132 // Entry to native method implementation that transitions 133 // current thread to '_thread_in_vm'. 134 #define C2V_VMENTRY(result_type, name, signature) \ 135 JNIEXPORT result_type JNICALL c2v_ ## name signature { \ 136 JavaThread* thread = get_current_thread(); \ 137 if (thread == NULL) { \ 138 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \ 139 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \ 140 return; \ 141 } \ 142 JVMCITraceMark jtm("CompilerToVM::" #name); \ 143 C2V_BLOCK(result_type, name, signature) 144 145 #define C2V_VMENTRY_(result_type, name, signature, result) \ 146 JNIEXPORT result_type JNICALL c2v_ ## name signature { \ 147 JavaThread* thread = get_current_thread(); \ 148 if (thread == NULL) { \ 149 env->ThrowNew(JNIJVMCI::InternalError::clazz(), \ 150 err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \ 151 return result; \ 152 } \ 153 JVMCITraceMark jtm("CompilerToVM::" #name); \ 154 C2V_BLOCK(result_type, name, signature) 155 156 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, NULL) 157 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0) 158 159 // Entry to native method implementation that does not transition 160 // current thread to '_thread_in_vm'. 161 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \ 162 JNIEXPORT result_type JNICALL c2v_ ## name signature { \ 163 JavaThread* thread = get_current_thread(); 164 165 #define C2V_END } 166 167 #define JNI_THROW(caller, name, msg) do { \ 168 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \ 169 if (__throw_res != JNI_OK) { \ 170 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \ 171 } \ 172 return; \ 173 } while (0); 174 175 #define JNI_THROW_(caller, name, msg, result) do { \ 176 jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg); \ 177 if (__throw_res != JNI_OK) { \ 178 tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \ 179 } \ 180 return result; \ 181 } while (0) 182 183 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS); 184 185 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env)) 186 jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL); 187 return config; 188 } 189 190 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle)) 191 #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(); 192 #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(); 193 JVMCIObject name = JVMCIENV->wrap(name_handle); 194 if (name.is_null()) { 195 JVMCI_THROW_NULL(NullPointerException); 196 } 197 const char* cstring = JVMCIENV->as_utf8_string(name); 198 const JVMFlag* flag = JVMFlag::find_declared_flag(cstring); 199 if (flag == NULL) { 200 return c2vm; 201 } 202 if (flag->is_bool()) { 203 jvalue prim; 204 prim.z = flag->get_bool(); 205 JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL); 206 return JVMCIENV->get_jobject(box); 207 } else if (flag->is_ccstr()) { 208 JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL); 209 return JVMCIENV->get_jobject(value); 210 } else if (flag->is_intx()) { 211 RETURN_BOXED_LONG(flag->get_intx()); 212 } else if (flag->is_int()) { 213 RETURN_BOXED_LONG(flag->get_int()); 214 } else if (flag->is_uint()) { 215 RETURN_BOXED_LONG(flag->get_uint()); 216 } else if (flag->is_uint64_t()) { 217 RETURN_BOXED_LONG(flag->get_uint64_t()); 218 } else if (flag->is_size_t()) { 219 RETURN_BOXED_LONG(flag->get_size_t()); 220 } else if (flag->is_uintx()) { 221 RETURN_BOXED_LONG(flag->get_uintx()); 222 } else if (flag->is_double()) { 223 RETURN_BOXED_DOUBLE(flag->get_double()); 224 } else { 225 JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->name(), flag->type_string()); 226 } 227 #undef RETURN_BOXED_LONG 228 #undef RETURN_BOXED_DOUBLE 229 C2V_END 230 231 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, jobject jvmci_method)) 232 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 233 234 int code_size = method->code_size(); 235 jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size); 236 237 guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten"); 238 // iterate over all bytecodes and replace non-Java bytecodes 239 240 for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) { 241 Bytecodes::Code code = s.code(); 242 Bytecodes::Code raw_code = s.raw_code(); 243 int bci = s.bci(); 244 int len = s.instruction_size(); 245 246 // Restore original byte code. 247 reconstituted_code[bci] = (jbyte) (s.is_wide()? Bytecodes::_wide : code); 248 if (len > 1) { 249 memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1); 250 } 251 252 if (len > 1) { 253 // Restore the big-endian constant pool indexes. 254 // Cf. Rewriter::scan_method 255 switch (code) { 256 case Bytecodes::_getstatic: 257 case Bytecodes::_putstatic: 258 case Bytecodes::_getfield: 259 case Bytecodes::_putfield: 260 case Bytecodes::_invokevirtual: 261 case Bytecodes::_invokespecial: 262 case Bytecodes::_invokestatic: 263 case Bytecodes::_invokeinterface: 264 case Bytecodes::_invokehandle: { 265 int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1)); 266 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index); 267 break; 268 } 269 270 case Bytecodes::_invokedynamic: { 271 int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1)); 272 Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index); 273 break; 274 } 275 276 default: 277 break; 278 } 279 280 // Not all ldc byte code are rewritten. 281 switch (raw_code) { 282 case Bytecodes::_fast_aldc: { 283 int cpc_index = reconstituted_code[bci + 1] & 0xff; 284 int cp_index = method->constants()->object_to_cp_index(cpc_index); 285 assert(cp_index < method->constants()->length(), "sanity check"); 286 reconstituted_code[bci + 1] = (jbyte) cp_index; 287 break; 288 } 289 290 case Bytecodes::_fast_aldc_w: { 291 int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1)); 292 int cp_index = method->constants()->object_to_cp_index(cpc_index); 293 assert(cp_index < method->constants()->length(), "sanity check"); 294 Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index); 295 break; 296 } 297 298 default: 299 break; 300 } 301 } 302 } 303 304 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL); 305 JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size); 306 return JVMCIENV->get_jbyteArray(result); 307 C2V_END 308 309 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, jobject jvmci_method)) 310 Method* method = JVMCIENV->asMethod(jvmci_method); 311 return method->exception_table_length(); 312 C2V_END 313 314 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, jobject jvmci_method)) 315 Method* method = JVMCIENV->asMethod(jvmci_method); 316 if (method->exception_table_length() == 0) { 317 return 0L; 318 } 319 return (jlong) (address) method->exception_table_start(); 320 C2V_END 321 322 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle)) 323 requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL); 324 oop executable = JNIHandles::resolve(executable_handle); 325 oop mirror = NULL; 326 int slot = 0; 327 328 if (executable->klass() == vmClasses::reflect_Constructor_klass()) { 329 mirror = java_lang_reflect_Constructor::clazz(executable); 330 slot = java_lang_reflect_Constructor::slot(executable); 331 } else { 332 assert(executable->klass() == vmClasses::reflect_Method_klass(), "wrong type"); 333 mirror = java_lang_reflect_Method::clazz(executable); 334 slot = java_lang_reflect_Method::slot(executable); 335 } 336 Klass* holder = java_lang_Class::as_Klass(mirror); 337 methodHandle method (THREAD, InstanceKlass::cast(holder)->method_with_idnum(slot)); 338 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL); 339 return JVMCIENV->get_jobject(result); 340 } 341 342 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset)) 343 Method* method = NULL; 344 JVMCIObject base_object = JVMCIENV->wrap(base); 345 if (base_object.is_null()) { 346 method = *((Method**)(offset)); 347 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) { 348 Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL); 349 if (obj->is_a(vmClasses::ResolvedMethodName_klass())) { 350 method = (Method*) (intptr_t) obj->long_field(offset); 351 } else { 352 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name())); 353 } 354 } else if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) { 355 method = JVMCIENV->asMethod(base_object); 356 } 357 if (method == NULL) { 358 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object))); 359 } 360 assert (method->is_method(), "invalid read"); 361 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, method), JVMCI_CHECK_NULL); 362 return JVMCIENV->get_jobject(result); 363 } 364 365 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, jobject object_handle)) 366 ConstantPool* cp = NULL; 367 JVMCIObject object = JVMCIENV->wrap(object_handle); 368 if (object.is_null()) { 369 JVMCI_THROW_NULL(NullPointerException); 370 } 371 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(object)) { 372 cp = JVMCIENV->asMethod(object)->constMethod()->constants(); 373 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(object)) { 374 cp = InstanceKlass::cast(JVMCIENV->asKlass(object))->constants(); 375 } else { 376 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 377 err_msg("Unexpected type: %s", JVMCIENV->klass_name(object))); 378 } 379 assert(cp != NULL, "npe"); 380 381 JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(constantPoolHandle(THREAD, cp), JVMCI_CHECK_NULL); 382 return JVMCIENV->get_jobject(result); 383 } 384 385 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed)) 386 JVMCIKlassHandle klass(THREAD); 387 JVMCIObject base_object = JVMCIENV->wrap(base); 388 jlong base_address = 0; 389 if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) { 390 // klass = JVMCIENV->unhandle(base_object)->klass(); 391 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) { 392 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL); 393 klass = base_oop->klass(); 394 } else { 395 assert(false, "What types are we actually expecting here?"); 396 } 397 } else if (!compressed) { 398 if (base_object.is_non_null()) { 399 if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) { 400 base_address = (intptr_t) JVMCIENV->asMethod(base_object); 401 } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) { 402 base_address = (intptr_t) JVMCIENV->asConstantPool(base_object); 403 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) { 404 base_address = (intptr_t) JVMCIENV->asKlass(base_object); 405 } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) { 406 Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL); 407 if (base_oop->is_a(vmClasses::Class_klass())) { 408 base_address = cast_from_oop<jlong>(base_oop()); 409 } 410 } 411 if (base_address == 0) { 412 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 413 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false")); 414 } 415 } 416 klass = *((Klass**) (intptr_t) (base_address + offset)); 417 } else { 418 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 419 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", 420 base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null", 421 offset, compressed ? "true" : "false")); 422 } 423 assert (klass == NULL || klass->is_klass(), "invalid read"); 424 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 425 return JVMCIENV->get_jobject(result); 426 } 427 428 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method)) 429 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method)); 430 InstanceKlass* holder = InstanceKlass::cast(JVMCIENV->asKlass(jvmci_type)); 431 if (holder->is_interface()) { 432 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name())); 433 } 434 if (method->can_be_statically_bound()) { 435 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())); 436 } 437 438 methodHandle ucm; 439 { 440 MutexLocker locker(Compile_lock); 441 ucm = methodHandle(THREAD, Dependencies::find_unique_concrete_method(holder, method())); 442 } 443 JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL); 444 return JVMCIENV->get_jobject(result); 445 C2V_END 446 447 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type)) 448 Klass* klass = JVMCIENV->asKlass(jvmci_type); 449 if (!klass->is_interface()) { 450 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 451 err_msg("Expected interface type, got %s", klass->external_name())); 452 } 453 InstanceKlass* iklass = InstanceKlass::cast(klass); 454 JVMCIKlassHandle handle(THREAD); 455 { 456 // Need Compile_lock around implementor() 457 MutexLocker locker(Compile_lock); 458 handle = iklass->implementor(); 459 } 460 JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL); 461 return JVMCIENV->get_jobject(implementor); 462 C2V_END 463 464 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method)) 465 Method* method = JVMCIENV->asMethod(jvmci_method); 466 return method->is_ignored_by_security_stack_walk(); 467 C2V_END 468 469 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method)) 470 Method* method = JVMCIENV->asMethod(jvmci_method); 471 // Skip redefined methods 472 if (method->is_old()) { 473 return false; 474 } 475 return !method->is_not_compilable(CompLevel_full_optimization); 476 C2V_END 477 478 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method)) 479 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method)); 480 return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline(); 481 C2V_END 482 483 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method)) 484 methodHandle method (THREAD, JVMCIENV->asMethod(jvmci_method)); 485 return CompilerOracle::should_inline(method) || method->force_inline(); 486 C2V_END 487 488 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve)) 489 JVMCIObject name = JVMCIENV->wrap(jname); 490 const char* str = JVMCIENV->as_utf8_string(name); 491 TempNewSymbol class_name = SymbolTable::new_symbol(str); 492 493 if (class_name->utf8_length() <= 1) { 494 JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string())); 495 } 496 497 JVMCIKlassHandle resolved_klass(THREAD); 498 Klass* accessing_klass = NULL; 499 Handle class_loader; 500 Handle protection_domain; 501 if (accessing_class != NULL) { 502 accessing_klass = JVMCIENV->asKlass(accessing_class); 503 class_loader = Handle(THREAD, accessing_klass->class_loader()); 504 protection_domain = Handle(THREAD, accessing_klass->protection_domain()); 505 } else { 506 // Use the System class loader 507 class_loader = Handle(THREAD, SystemDictionary::java_system_loader()); 508 JVMCIENV->runtime()->initialize(JVMCIENV); 509 } 510 511 if (resolve) { 512 resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_NULL); 513 if (resolved_klass == NULL) { 514 JVMCI_THROW_MSG_NULL(ClassNotFoundException, str); 515 } 516 } else { 517 if (Signature::has_envelope(class_name)) { 518 // This is a name from a signature. Strip off the trimmings. 519 // Call recursive to keep scope of strippedsym. 520 TempNewSymbol strippedsym = Signature::strip_envelope(class_name); 521 resolved_klass = SystemDictionary::find_instance_klass(strippedsym, 522 class_loader, 523 protection_domain); 524 } else if (Signature::is_array(class_name)) { 525 SignatureStream ss(class_name, false); 526 int ndim = ss.skip_array_prefix(); 527 if (ss.type() == T_OBJECT) { 528 Symbol* strippedsym = ss.as_symbol(); 529 resolved_klass = SystemDictionary::find_instance_klass(strippedsym, 530 class_loader, 531 protection_domain); 532 if (!resolved_klass.is_null()) { 533 resolved_klass = resolved_klass->array_klass(ndim, CHECK_NULL); 534 } 535 } else { 536 resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(ss.type()))->array_klass(ndim, CHECK_NULL); 537 } 538 } else { 539 resolved_klass = SystemDictionary::find_instance_klass(class_name, 540 class_loader, 541 protection_domain); 542 } 543 } 544 JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL); 545 return JVMCIENV->get_jobject(result); 546 C2V_END 547 548 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jobject jvmci_type)) 549 if (jvmci_type == NULL) { 550 JVMCI_THROW_0(NullPointerException); 551 } 552 553 JVMCIObject jvmci_type_object = JVMCIENV->wrap(jvmci_type); 554 JVMCIKlassHandle array_klass(THREAD); 555 if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(jvmci_type_object)) { 556 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(jvmci_type_object), JVMCI_CHECK_0); 557 if (type == T_VOID) { 558 return NULL; 559 } 560 array_klass = Universe::typeArrayKlassObj(type); 561 if (array_klass == NULL) { 562 JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type))); 563 } 564 } else { 565 Klass* klass = JVMCIENV->asKlass(jvmci_type); 566 if (klass == NULL) { 567 JVMCI_THROW_0(NullPointerException); 568 } 569 array_klass = klass->array_klass(CHECK_NULL); 570 } 571 JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL); 572 return JVMCIENV->get_jobject(result); 573 C2V_END 574 575 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror)) 576 requireInHotSpot("lookupClass", JVMCI_CHECK_NULL); 577 if (mirror == NULL) { 578 return NULL; 579 } 580 JVMCIKlassHandle klass(THREAD); 581 klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror)); 582 if (klass == NULL) { 583 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported"); 584 } 585 JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 586 return JVMCIENV->get_jobject(result); 587 C2V_END 588 589 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 590 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 591 oop obj = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL); 592 constantTag tag = cp->tag_at(index); 593 if (tag.is_dynamic_constant() || tag.is_dynamic_constant_in_error()) { 594 if (obj == Universe::the_null_sentinel()) { 595 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 596 } 597 BasicType bt = Signature::basic_type(cp->uncached_signature_ref_at(index)); 598 if (!is_reference_type(bt)) { 599 if (!is_java_primitive(bt)) { 600 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL()); 601 } 602 603 // Convert standard box (e.g. java.lang.Integer) to JVMCI box (e.g. jdk.vm.ci.meta.PrimitiveConstant) 604 jvalue value; 605 jlong raw_value; 606 JVMCIObject kind; 607 BasicType bt2 = java_lang_boxing_object::get_value(obj, &value); 608 assert(bt2 == bt, ""); 609 switch (bt2) { 610 case T_LONG: kind = JVMCIENV->get_JavaKind_Long(); raw_value = value.j; break; 611 case T_DOUBLE: kind = JVMCIENV->get_JavaKind_Double(); raw_value = value.j; break; 612 case T_FLOAT: kind = JVMCIENV->get_JavaKind_Float(); raw_value = value.i; break; 613 case T_INT: kind = JVMCIENV->get_JavaKind_Int(); raw_value = value.i; break; 614 case T_SHORT: kind = JVMCIENV->get_JavaKind_Short(); raw_value = value.s; break; 615 case T_BYTE: kind = JVMCIENV->get_JavaKind_Byte(); raw_value = value.b; break; 616 case T_CHAR: kind = JVMCIENV->get_JavaKind_Char(); raw_value = value.c; break; 617 case T_BOOLEAN: kind = JVMCIENV->get_JavaKind_Boolean(); raw_value = value.z; break; 618 default: return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_ILLEGAL()); 619 } 620 621 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(kind, raw_value, JVMCI_CHECK_NULL); 622 return JVMCIENV->get_jobject(result); 623 } 624 } 625 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(obj)); 626 C2V_END 627 628 C2V_VMENTRY_NULL(jobjectArray, resolveBootstrapMethod, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 629 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 630 constantTag tag = cp->tag_at(index); 631 bool is_indy = tag.is_invoke_dynamic(); 632 bool is_condy = tag.is_dynamic_constant(); 633 if (!(is_condy || is_indy)) { 634 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected constant pool tag at index %d: %d", index, tag.value())); 635 } 636 // Resolve the bootstrap specifier, its name, type, and static arguments 637 BootstrapInfo bootstrap_specifier(cp, index); 638 Handle bsm = bootstrap_specifier.resolve_bsm(CHECK_NULL); 639 640 // call java.lang.invoke.MethodHandle::asFixedArity() -> MethodHandle 641 // to get a DirectMethodHandle from which we can then extract a Method* 642 JavaValue result(T_OBJECT); 643 JavaCalls::call_virtual(&result, 644 bsm, 645 vmClasses::MethodHandle_klass(), 646 vmSymbols::asFixedArity_name(), 647 vmSymbols::asFixedArity_signature(), 648 CHECK_NULL); 649 bsm = Handle(THREAD, result.get_oop()); 650 651 // Check assumption about getting a DirectMethodHandle 652 if (!java_lang_invoke_DirectMethodHandle::is_instance(bsm())) { 653 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Unexpected MethodHandle subclass: %s", bsm->klass()->external_name())); 654 } 655 // Create return array describing the bootstrap method invocation (BSMI) 656 JVMCIObjectArray bsmi = JVMCIENV->new_Object_array(4, JVMCI_CHECK_NULL); 657 658 // Extract Method* and wrap it in a ResolvedJavaMethod 659 Handle member = Handle(THREAD, java_lang_invoke_DirectMethodHandle::member(bsm())); 660 JVMCIObject bsmi_method = JVMCIENV->get_jvmci_method(methodHandle(THREAD, java_lang_invoke_MemberName::vmtarget(member())), JVMCI_CHECK_NULL); 661 JVMCIENV->put_object_at(bsmi, 0, bsmi_method); 662 663 JVMCIObject bsmi_name = JVMCIENV->create_string(bootstrap_specifier.name(), JVMCI_CHECK_NULL); 664 JVMCIENV->put_object_at(bsmi, 1, bsmi_name); 665 666 Handle type_arg = bootstrap_specifier.type_arg(); 667 JVMCIObject bsmi_type = JVMCIENV->get_object_constant(type_arg()); 668 JVMCIENV->put_object_at(bsmi, 2, bsmi_type); 669 670 Handle arg_values = bootstrap_specifier.arg_values(); 671 if (arg_values.not_null()) { 672 if (!arg_values->is_array()) { 673 JVMCIENV->put_object_at(bsmi, 3, JVMCIENV->get_object_constant(arg_values())); 674 } else if (arg_values->is_objArray()) { 675 objArrayHandle args_array = objArrayHandle(THREAD, (objArrayOop) arg_values()); 676 int len = args_array->length(); 677 JVMCIObjectArray arguments = JVMCIENV->new_JavaConstant_array(len, JVMCI_CHECK_NULL); 678 JVMCIENV->put_object_at(bsmi, 3, arguments); 679 for (int i = 0; i < len; i++) { 680 oop x = args_array->obj_at(i); 681 if (x != nullptr) { 682 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_object_constant(x)); 683 } else { 684 JVMCIENV->put_object_at(arguments, i, JVMCIENV->get_JavaConstant_NULL_POINTER()); 685 } 686 } 687 } else if (arg_values->is_typeArray()) { 688 typeArrayHandle bsci = typeArrayHandle(THREAD, (typeArrayOop) arg_values()); 689 JVMCIPrimitiveArray arguments = JVMCIENV->new_intArray(bsci->length(), JVMCI_CHECK_NULL); 690 JVMCIENV->put_object_at(bsmi, 3, arguments); 691 for (int i = 0; i < bsci->length(); i++) { 692 JVMCIENV->put_int_at(arguments, i, bsci->int_at(i)); 693 } 694 } 695 } 696 return JVMCIENV->get_jobjectArray(bsmi); 697 C2V_END 698 699 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 700 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 701 return cp->name_and_type_ref_index_at(index); 702 C2V_END 703 704 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which)) 705 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 706 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL); 707 return JVMCIENV->get_jobject(sym); 708 C2V_END 709 710 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which)) 711 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 712 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL); 713 return JVMCIENV->get_jobject(sym); 714 C2V_END 715 716 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 717 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 718 return cp->klass_ref_index_at(index); 719 C2V_END 720 721 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 722 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 723 Klass* klass = cp->klass_at(index, CHECK_NULL); 724 JVMCIKlassHandle resolved_klass(THREAD, klass); 725 if (resolved_klass->is_instance_klass()) { 726 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL); 727 if (!InstanceKlass::cast(resolved_klass())->is_linked()) { 728 // link_class() should not return here if there is an issue. 729 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name())); 730 } 731 } 732 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL); 733 return JVMCIENV->get_jobject(klassObject); 734 C2V_END 735 736 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode)) 737 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 738 Klass* loading_klass = cp->pool_holder(); 739 bool is_accessible = false; 740 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass)); 741 Symbol* symbol = NULL; 742 if (klass.is_null()) { 743 constantTag tag = cp->tag_at(index); 744 if (tag.is_klass()) { 745 // The klass has been inserted into the constant pool 746 // very recently. 747 klass = cp->resolved_klass_at(index); 748 } else if (tag.is_symbol()) { 749 symbol = cp->symbol_at(index); 750 } else { 751 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag"); 752 symbol = cp->klass_name_at(index); 753 } 754 } 755 JVMCIObject result; 756 if (!klass.is_null()) { 757 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 758 } else { 759 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL); 760 } 761 return JVMCIENV->get_jobject(result); 762 C2V_END 763 764 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 765 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 766 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index); 767 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop)); 768 C2V_END 769 770 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode)) 771 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 772 InstanceKlass* pool_holder = cp->pool_holder(); 773 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF); 774 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder)); 775 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL); 776 return JVMCIENV->get_jobject(result); 777 C2V_END 778 779 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 780 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 781 return cp->remap_instruction_operand_from_cache(index); 782 C2V_END 783 784 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle)) 785 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 786 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF); 787 fieldDescriptor fd; 788 methodHandle mh(THREAD, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL); 789 LinkInfo link_info(cp, index, mh, CHECK_NULL); 790 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL); 791 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle); 792 if (info.is_null() || JVMCIENV->get_length(info) != 3) { 793 JVMCI_ERROR_NULL("info must not be null and have a length of 3"); 794 } 795 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int()); 796 JVMCIENV->put_int_at(info, 1, fd.offset()); 797 JVMCIENV->put_int_at(info, 2, fd.index()); 798 JVMCIKlassHandle handle(THREAD, fd.field_holder()); 799 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL); 800 return JVMCIENV->get_jobject(field_holder); 801 C2V_END 802 803 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method)) 804 Klass* klass = JVMCIENV->asKlass(jvmci_type); 805 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 806 InstanceKlass* holder = method->method_holder(); 807 if (klass->is_interface()) { 808 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name())); 809 } 810 if (!holder->is_interface()) { 811 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())); 812 } 813 if (!klass->is_instance_klass()) { 814 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name())); 815 } 816 if (!InstanceKlass::cast(klass)->is_linked()) { 817 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name())); 818 } 819 if (!klass->is_subtype_of(holder)) { 820 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name())); 821 } 822 return LinkResolver::vtable_index_of_interface_method(klass, method); 823 C2V_END 824 825 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type)) 826 Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type); 827 Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type); 828 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 829 830 Klass* resolved = method->method_holder(); 831 Symbol* h_name = method->name(); 832 Symbol* h_signature = method->signature(); 833 834 if (MethodHandles::is_signature_polymorphic_method(method())) { 835 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case. 836 return NULL; 837 } 838 839 if (method->name() == vmSymbols::clone_name() && 840 resolved == vmClasses::Object_klass() && 841 recv_klass->is_array_klass()) { 842 // Resolution of the clone method on arrays always returns Object.clone even though that method 843 // has protected access. There's some trickery in the access checking to make this all work out 844 // so it's necessary to pass in the array class as the resolved class to properly trigger this. 845 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See 846 // LinkResolver::check_method_accessability for the matching logic. 847 resolved = recv_klass; 848 } 849 850 LinkInfo link_info(resolved, h_name, h_signature, caller_klass); 851 Method* m = NULL; 852 // Only do exact lookup if receiver klass has been linked. Otherwise, 853 // the vtable has not been setup, and the LinkResolver will fail. 854 if (recv_klass->is_array_klass() || 855 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) { 856 if (resolved->is_interface()) { 857 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info); 858 } else { 859 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info); 860 } 861 } 862 863 if (m == NULL) { 864 // Return NULL if there was a problem with lookup (uninitialized class, etc.) 865 return NULL; 866 } 867 868 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL); 869 return JVMCIENV->get_jobject(result); 870 C2V_END 871 872 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type)) 873 Klass* klass = JVMCIENV->asKlass(jvmci_type); 874 assert(klass != NULL, "method must not be called for primitive types"); 875 if (!klass->is_instance_klass()) { 876 return false; 877 } 878 InstanceKlass* iklass = InstanceKlass::cast(klass); 879 return Dependencies::find_finalizable_subclass(iklass) != NULL; 880 C2V_END 881 882 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type)) 883 Klass* klass = JVMCIENV->asKlass(jvmci_type); 884 if (!klass->is_instance_klass()) { 885 return NULL; 886 } 887 InstanceKlass* iklass = InstanceKlass::cast(klass); 888 methodHandle clinit(THREAD, iklass->class_initializer()); 889 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL); 890 return JVMCIENV->get_jobject(result); 891 C2V_END 892 893 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr)) 894 address target_addr = (address) addr; 895 if (target_addr != 0x0) { 896 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int)); 897 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int)); 898 return MAX2(ABS(off_low), ABS(off_high)); 899 } 900 return -1; 901 C2V_END 902 903 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, jobject jvmci_method)) 904 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 905 method->set_not_c1_compilable(); 906 method->set_not_c2_compilable(); 907 method->set_dont_inline(true); 908 C2V_END 909 910 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code, 911 jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj)) 912 HandleMark hm(THREAD); 913 JNIHandleMark jni_hm(thread); 914 915 JVMCIObject target_handle = JVMCIENV->wrap(target); 916 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code); 917 CodeBlob* cb = NULL; 918 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code); 919 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj); 920 921 int speculations_len = JVMCIENV->get_length(speculations_handle); 922 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len); 923 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len); 924 925 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR); 926 927 TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer(!thread->is_Compiler_thread())); 928 929 nmethodLocker nmethod_handle; 930 CodeInstaller installer(JVMCIENV); 931 JVMCI::CodeInstallResult result = installer.install(compiler, 932 target_handle, 933 compiled_code_handle, 934 cb, 935 nmethod_handle, 936 installed_code_handle, 937 (FailedSpeculation**)(address) failed_speculations_address, 938 speculations, 939 speculations_len, 940 JVMCI_CHECK_0); 941 942 if (PrintCodeCacheOnCompilation) { 943 stringStream s; 944 // Dump code cache into a buffer before locking the tty, 945 { 946 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 947 CodeCache::print_summary(&s, false); 948 } 949 ttyLocker ttyl; 950 tty->print_raw_cr(s.as_string()); 951 } 952 953 if (result != JVMCI::ok) { 954 assert(cb == NULL, "should be"); 955 } else { 956 if (installed_code_handle.is_non_null()) { 957 if (cb->is_nmethod()) { 958 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type"); 959 // Clear the link to an old nmethod first 960 JVMCIObject nmethod_mirror = installed_code_handle; 961 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0); 962 } else { 963 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type"); 964 } 965 // Initialize the link to the new code blob 966 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0); 967 } 968 } 969 return result; 970 C2V_END 971 972 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject)) 973 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK); 974 CompilerStatistics* stats = compiler->stats(); 975 stats->_standard.reset(); 976 stats->_osr.reset(); 977 C2V_END 978 979 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode)) 980 HandleMark hm(THREAD); 981 982 if (installedCode == NULL) { 983 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null"); 984 } 985 986 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode); 987 nmethodLocker locker; 988 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject, locker); 989 if (cb == NULL) { 990 return NULL; 991 } 992 993 // We don't want the stringStream buffer to resize during disassembly as it 994 // uses scoped resource memory. If a nested function called during disassembly uses 995 // a ResourceMark and the buffer expands within the scope of the mark, 996 // the buffer becomes garbage when that scope is exited. Experience shows that 997 // the disassembled code is typically about 10x the code size so a fixed buffer 998 // sized to 20x code size plus a fixed amount for header info should be sufficient. 999 int bufferSize = cb->code_size() * 20 + 1024; 1000 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize); 1001 stringStream st(buffer, bufferSize); 1002 if (cb->is_nmethod()) { 1003 nmethod* nm = (nmethod*) cb; 1004 if (!nm->is_alive()) { 1005 return NULL; 1006 } 1007 } 1008 Disassembler::decode(cb, &st); 1009 if (st.size() <= 0) { 1010 return NULL; 1011 } 1012 1013 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL); 1014 return JVMCIENV->get_jobject(result); 1015 C2V_END 1016 1017 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci)) 1018 HandleMark hm(THREAD); 1019 1020 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 1021 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL); 1022 return JVMCIENV->get_jobject(element); 1023 C2V_END 1024 1025 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod)) 1026 // The incoming arguments array would have to contain JavaConstants instead of regular objects 1027 // and the return value would have to be wrapped as a JavaConstant. 1028 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL); 1029 1030 HandleMark hm(THREAD); 1031 1032 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod); 1033 nmethodLocker locker; 1034 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, locker); 1035 if (nm == NULL || !nm->is_in_use()) { 1036 JVMCI_THROW_NULL(InvalidInstalledCodeException); 1037 } 1038 methodHandle mh(THREAD, nm->method()); 1039 Symbol* signature = mh->signature(); 1040 JavaCallArguments jca(mh->size_of_parameters()); 1041 1042 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static()); 1043 JavaValue result(jap.return_type()); 1044 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject()))); 1045 JavaCalls::call(&result, mh, &jca, CHECK_NULL); 1046 1047 if (jap.return_type() == T_VOID) { 1048 return NULL; 1049 } else if (is_reference_type(jap.return_type())) { 1050 return JNIHandles::make_local(THREAD, result.get_oop()); 1051 } else { 1052 jvalue *value = (jvalue *) result.get_value_addr(); 1053 // Narrow the value down if required (Important on big endian machines) 1054 switch (jap.return_type()) { 1055 case T_BOOLEAN: 1056 value->z = (jboolean) value->i; 1057 break; 1058 case T_BYTE: 1059 value->b = (jbyte) value->i; 1060 break; 1061 case T_CHAR: 1062 value->c = (jchar) value->i; 1063 break; 1064 case T_SHORT: 1065 value->s = (jshort) value->i; 1066 break; 1067 default: 1068 break; 1069 } 1070 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL); 1071 return JVMCIENV->get_jobject(o); 1072 } 1073 C2V_END 1074 1075 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method)) 1076 Method* method = JVMCIENV->asMethod(jvmci_method); 1077 if (!method->has_linenumber_table()) { 1078 return NULL; 1079 } 1080 u2 num_entries = 0; 1081 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table()); 1082 while (streamForSize.read_pair()) { 1083 num_entries++; 1084 } 1085 1086 CompressedLineNumberReadStream stream(method->compressed_linenumber_table()); 1087 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL); 1088 1089 int i = 0; 1090 jlong value; 1091 while (stream.read_pair()) { 1092 value = ((jlong) stream.bci()); 1093 JVMCIENV->put_long_at(result, i, value); 1094 value = ((jlong) stream.line()); 1095 JVMCIENV->put_long_at(result, i + 1, value); 1096 i += 2; 1097 } 1098 1099 return (jlongArray) JVMCIENV->get_jobject(result); 1100 C2V_END 1101 1102 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method)) 1103 Method* method = JVMCIENV->asMethod(jvmci_method); 1104 if (!method->has_localvariable_table()) { 1105 return 0; 1106 } 1107 return (jlong) (address) method->localvariable_table_start(); 1108 C2V_END 1109 1110 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method)) 1111 Method* method = JVMCIENV->asMethod(jvmci_method); 1112 return method->localvariable_table_length(); 1113 C2V_END 1114 1115 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method)) 1116 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 1117 MethodCounters* mcs = method->method_counters(); 1118 if (mcs != NULL) { 1119 mcs->clear_counters(); 1120 } 1121 NOT_PRODUCT(method->set_compiled_invocation_count(0)); 1122 1123 CompiledMethod* code = method->code(); 1124 if (code != NULL) { 1125 code->make_not_entrant(); 1126 } 1127 1128 MethodData* method_data = method->method_data(); 1129 if (method_data == NULL) { 1130 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); 1131 method_data = MethodData::allocate(loader_data, method, CHECK); 1132 method->set_method_data(method_data); 1133 } else { 1134 method_data->initialize(); 1135 } 1136 C2V_END 1137 1138 1139 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod)) 1140 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod); 1141 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK); 1142 C2V_END 1143 1144 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject)) 1145 // Returns a zero length array if counters aren't enabled 1146 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL); 1147 if (JVMCICounterSize > 0) { 1148 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize); 1149 JavaThread::collect_counters(temp_array, JVMCICounterSize); 1150 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize); 1151 } 1152 return (jlongArray) JVMCIENV->get_jobject(array); 1153 C2V_END 1154 1155 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject)) 1156 return (jint) JVMCICounterSize; 1157 C2V_END 1158 1159 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size)) 1160 return JavaThread::resize_all_jvmci_counters(new_size); 1161 C2V_END 1162 1163 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci)) 1164 HandleMark hm(THREAD); 1165 if (jvmci_method == NULL) { 1166 JVMCI_THROW_0(NullPointerException); 1167 } 1168 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 1169 if (entry_bci >= method->code_size() || entry_bci < -1) { 1170 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci)); 1171 } 1172 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci); 1173 C2V_END 1174 1175 1176 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data)) 1177 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data); 1178 return mdo != NULL && mdo->is_mature(); 1179 C2V_END 1180 1181 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level)) 1182 Method* method = JVMCIENV->asMethod(jvmci_method); 1183 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL; 1184 C2V_END 1185 1186 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol)) 1187 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL); 1188 return JVMCIENV->get_jobject(sym); 1189 C2V_END 1190 1191 /* 1192 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*. 1193 */ 1194 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) { 1195 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods); 1196 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length()); 1197 for (int i = 0; i < methods_oop->length(); i++) { 1198 oop resolved = methods_oop->obj_at(i); 1199 Method* resolved_method = NULL; 1200 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) { 1201 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved); 1202 } 1203 resolved_methods->append(resolved_method); 1204 } 1205 return resolved_methods; 1206 } 1207 1208 /* 1209 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array. 1210 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter. 1211 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref. 1212 */ 1213 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) { 1214 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref; 1215 if (resolved_methods == NULL) { 1216 resolved_methods = init_resolved_methods(methods, JVMCIENV); 1217 *resolved_methods_ref = resolved_methods; 1218 } 1219 assert(method != NULL, "method should not be NULL"); 1220 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length"); 1221 for (int i = 0; i < resolved_methods->length(); i++) { 1222 Method* m = resolved_methods->at(i); 1223 if (m == method) { 1224 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i)); 1225 return true; 1226 } 1227 } 1228 return false; 1229 } 1230 1231 /* 1232 * Resolves an interface call to a concrete method handle. 1233 */ 1234 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { 1235 CallInfo callinfo; 1236 Handle receiver = args->receiver(); 1237 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass(); 1238 LinkInfo link_info(spec_klass, name, signature); 1239 LinkResolver::resolve_interface_call( 1240 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle())); 1241 methodHandle method(THREAD, callinfo.selected_method()); 1242 assert(method.not_null(), "should have thrown exception"); 1243 return method; 1244 } 1245 1246 /* 1247 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id. 1248 */ 1249 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) { 1250 vfst = vframeStream(thread); 1251 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) { 1252 vfst.next(); 1253 } 1254 if (vfst.frame_id() != stack_pointer) { 1255 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt") 1256 } 1257 if (vfst.is_interpreted_frame()) { 1258 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected") 1259 } 1260 while (vfst.vframe_id() != vframe_id) { 1261 if (vfst.at_end()) { 1262 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt") 1263 } 1264 vfst.next(); 1265 assert(!vfst.is_interpreted_frame(), "Wrong frame type"); 1266 } 1267 } 1268 1269 /* 1270 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or NULL if none. 1271 */ 1272 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) { 1273 GrowableArray<ScopeValue*>* unallocated = NULL; 1274 for (int i = 0; i < scope_objects->length(); i++) { 1275 ObjectValue* sv = (ObjectValue*) scope_objects->at(i); 1276 if (sv->value().is_null()) { 1277 if (unallocated == NULL) { 1278 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length()); 1279 } 1280 unallocated->append(sv); 1281 } 1282 } 1283 return unallocated; 1284 } 1285 1286 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle)) 1287 1288 if (!thread->has_last_Java_frame()) { 1289 return NULL; 1290 } 1291 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle)); 1292 1293 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL); 1294 1295 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL); 1296 1297 vframeStream vfst(thread); 1298 jobjectArray methods = initial_methods; 1299 methodHandle visitor_method; 1300 GrowableArray<Method*>* resolved_methods = NULL; 1301 1302 while (!vfst.at_end()) { // frame loop 1303 bool realloc_called = false; 1304 intptr_t* frame_id = vfst.frame_id(); 1305 1306 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool. 1307 compiledVFrame* prev_cvf = NULL; 1308 1309 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop 1310 int frame_number = 0; 1311 Method *method = vfst.method(); 1312 int bci = vfst.bci(); 1313 1314 Handle matched_jvmci_method; 1315 if (methods == NULL || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) { 1316 if (initialSkip > 0) { 1317 initialSkip--; 1318 continue; 1319 } 1320 javaVFrame* vf; 1321 if (prev_cvf != NULL && prev_cvf->frame_pointer()->id() == frame_id) { 1322 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame"); 1323 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id()); 1324 } else { 1325 vf = vfst.asJavaVFrame(); 1326 } 1327 1328 StackValueCollection* locals = NULL; 1329 typeArrayHandle localIsVirtual_h; 1330 if (vf->is_compiled_frame()) { 1331 // compiled method frame 1332 compiledVFrame* cvf = compiledVFrame::cast(vf); 1333 1334 ScopeDesc* scope = cvf->scope(); 1335 // native wrappers do not have a scope 1336 if (scope != NULL && scope->objects() != NULL) { 1337 prev_cvf = cvf; 1338 1339 GrowableArray<ScopeValue*>* objects = NULL; 1340 if (!realloc_called) { 1341 objects = scope->objects(); 1342 } else { 1343 // some object might already have been re-allocated, only reallocate the non-allocated ones 1344 objects = get_unallocated_objects_or_null(scope->objects()); 1345 } 1346 1347 if (objects != NULL) { 1348 RegisterMap reg_map(vf->register_map()); 1349 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL); 1350 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false); 1351 realloc_called = true; 1352 } 1353 1354 GrowableArray<ScopeValue*>* local_values = scope->locals(); 1355 for (int i = 0; i < local_values->length(); i++) { 1356 ScopeValue* value = local_values->at(i); 1357 if (value->is_object()) { 1358 if (localIsVirtual_h.is_null()) { 1359 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL); 1360 localIsVirtual_h = typeArrayHandle(THREAD, array_oop); 1361 } 1362 localIsVirtual_h->bool_at_put(i, true); 1363 } 1364 } 1365 } 1366 1367 locals = cvf->locals(); 1368 frame_number = cvf->vframe_id(); 1369 } else { 1370 // interpreted method frame 1371 interpretedVFrame* ivf = interpretedVFrame::cast(vf); 1372 1373 locals = ivf->locals(); 1374 } 1375 assert(bci == vf->bci(), "wrong bci"); 1376 assert(method == vf->method(), "wrong method"); 1377 1378 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL); 1379 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci); 1380 if (matched_jvmci_method.is_null()) { 1381 methodHandle mh(THREAD, method); 1382 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL); 1383 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject())); 1384 } 1385 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method()); 1386 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h()); 1387 1388 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM)); 1389 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id); 1390 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number); 1391 1392 // initialize the locals array 1393 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL); 1394 objArrayHandle array(THREAD, array_oop); 1395 for (int i = 0; i < locals->size(); i++) { 1396 StackValue* var = locals->at(i); 1397 if (var->type() == T_OBJECT) { 1398 array->obj_at_put(i, locals->at(i)->get_obj()()); 1399 } 1400 } 1401 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array()); 1402 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE); 1403 1404 JavaValue result(T_OBJECT); 1405 JavaCallArguments args(visitor); 1406 if (visitor_method.is_null()) { 1407 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL); 1408 } 1409 1410 args.push_oop(frame_reference); 1411 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL); 1412 if (result.get_oop() != NULL) { 1413 return JNIHandles::make_local(thread, result.get_oop()); 1414 } 1415 if (methods == initial_methods) { 1416 methods = match_methods; 1417 if (resolved_methods != NULL && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) { 1418 resolved_methods = NULL; 1419 } 1420 } 1421 assert(initialSkip == 0, "There should be no match before initialSkip == 0"); 1422 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) { 1423 // the frame has been deoptimized, we need to re-synchronize the frame and vframe 1424 prev_cvf = NULL; 1425 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference()); 1426 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL); 1427 } 1428 } 1429 } // end of vframe loop 1430 } // end of frame loop 1431 1432 // the end was reached without finding a matching method 1433 return NULL; 1434 C2V_END 1435 1436 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 1437 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 1438 CallInfo callInfo; 1439 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK); 1440 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index); 1441 cp_cache_entry->set_dynamic_call(cp, callInfo); 1442 C2V_END 1443 1444 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 1445 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 1446 Klass* holder = cp->klass_ref_at(index, CHECK); 1447 Symbol* name = cp->name_ref_at(index); 1448 if (MethodHandles::is_signature_polymorphic_name(holder, name)) { 1449 CallInfo callInfo; 1450 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK); 1451 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); 1452 cp_cache_entry->set_method_handle(cp, callInfo); 1453 } 1454 C2V_END 1455 1456 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 1457 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 1458 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); 1459 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) { 1460 // MethodHandle.invoke* --> LambdaForm? 1461 ResourceMark rm; 1462 1463 LinkInfo link_info(cp, index, CATCH); 1464 1465 Klass* resolved_klass = link_info.resolved_klass(); 1466 1467 Symbol* name_sym = cp->name_ref_at(index); 1468 1469 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!"); 1470 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!"); 1471 1472 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method()); 1473 1474 methodHandle resolved_method(adapter_method); 1475 1476 // Can we treat it as a regular invokevirtual? 1477 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) { 1478 vmassert(!resolved_method->is_static(),"!"); 1479 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!"); 1480 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!"); 1481 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!"); 1482 1483 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info)); 1484 vmassert(m == resolved_method, "!!"); 1485 return -1; 1486 } 1487 1488 return Bytecodes::_invokevirtual; 1489 } 1490 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) { 1491 return Bytecodes::_invokedynamic; 1492 } 1493 return -1; 1494 C2V_END 1495 1496 1497 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject)) 1498 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL); 1499 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL); 1500 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL); 1501 JVMCIENV->put_object_at(holders, 0, mh); 1502 JVMCIENV->put_object_at(holders, 1, vh); 1503 return JVMCIENV->get_jobject(holders); 1504 C2V_END 1505 1506 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject)) 1507 //see compute_recording_non_safepoints in debugInfroRec.cpp 1508 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) { 1509 return true; 1510 } 1511 return DebugNonSafepoints; 1512 C2V_END 1513 1514 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate); 1515 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate)) 1516 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame); 1517 if (hs_frame.is_null()) { 1518 JVMCI_THROW_MSG(NullPointerException, "stack frame is null"); 1519 } 1520 1521 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK); 1522 1523 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK); 1524 1525 // look for the given stack frame 1526 StackFrameStream fst(thread, false /* update */, true /* process_frames */); 1527 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame); 1528 while (fst.current()->id() != stack_pointer && !fst.is_done()) { 1529 fst.next(); 1530 } 1531 if (fst.current()->id() != stack_pointer) { 1532 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found"); 1533 } 1534 1535 if (invalidate) { 1536 if (!fst.current()->is_compiled_frame()) { 1537 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected"); 1538 } 1539 assert(fst.current()->cb()->is_nmethod(), "nmethod expected"); 1540 ((nmethod*) fst.current()->cb())->make_not_entrant(); 1541 } 1542 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none); 1543 // look for the frame again as it has been updated by deopt (pc, deopt state...) 1544 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */); 1545 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) { 1546 fstAfterDeopt.next(); 1547 } 1548 if (fstAfterDeopt.current()->id() != stack_pointer) { 1549 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt"); 1550 } 1551 1552 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread); 1553 if (!vf->is_compiled_frame()) { 1554 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected"); 1555 } 1556 1557 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10); 1558 while (true) { 1559 assert(vf->is_compiled_frame(), "Wrong frame type"); 1560 virtualFrames->push(compiledVFrame::cast(vf)); 1561 if (vf->is_top()) { 1562 break; 1563 } 1564 vf = vf->sender(); 1565 } 1566 1567 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame); 1568 if (last_frame_number >= virtualFrames->length()) { 1569 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number"); 1570 } 1571 1572 // Reallocate the non-escaping objects and restore their fields. 1573 assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope"); 1574 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects(); 1575 1576 if (objects == NULL) { 1577 // no objects to materialize 1578 return; 1579 } 1580 1581 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK); 1582 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false); 1583 1584 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) { 1585 compiledVFrame* cvf = virtualFrames->at(frame_index); 1586 1587 GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals(); 1588 StackValueCollection* locals = cvf->locals(); 1589 if (locals != NULL) { 1590 for (int i2 = 0; i2 < locals->size(); i2++) { 1591 StackValue* var = locals->at(i2); 1592 if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) { 1593 jvalue val; 1594 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()()); 1595 cvf->update_local(T_OBJECT, i2, val); 1596 } 1597 } 1598 } 1599 1600 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions(); 1601 StackValueCollection* expressions = cvf->expressions(); 1602 if (expressions != NULL) { 1603 for (int i2 = 0; i2 < expressions->size(); i2++) { 1604 StackValue* var = expressions->at(i2); 1605 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) { 1606 jvalue val; 1607 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()()); 1608 cvf->update_stack(T_OBJECT, i2, val); 1609 } 1610 } 1611 } 1612 1613 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors(); 1614 GrowableArray<MonitorInfo*>* monitors = cvf->monitors(); 1615 if (monitors != NULL) { 1616 for (int i2 = 0; i2 < monitors->length(); i2++) { 1617 cvf->update_monitor(i2, monitors->at(i2)); 1618 } 1619 } 1620 } 1621 1622 // all locals are materialized by now 1623 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL); 1624 // update the locals array 1625 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame); 1626 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals(); 1627 for (int i = 0; i < locals->size(); i++) { 1628 StackValue* var = locals->at(i); 1629 if (var->type() == T_OBJECT) { 1630 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()())); 1631 } 1632 } 1633 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE); 1634 C2V_END 1635 1636 // Use of tty does not require the current thread to be attached to the VM 1637 // so no need for a full C2V_VMENTRY transition. 1638 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush)) 1639 if (length <= 8) { 1640 tty->write((char*) &buffer, length); 1641 } else { 1642 tty->write((char*) buffer, length); 1643 } 1644 if (flush) { 1645 tty->flush(); 1646 } 1647 C2V_END 1648 1649 // Use of tty does not require the current thread to be attached to the VM 1650 // so no need for a full C2V_VMENTRY transition. 1651 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject)) 1652 tty->flush(); 1653 C2V_END 1654 1655 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position)) 1656 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data); 1657 ProfileData* profile_data = mdo->data_at(position); 1658 if (mdo->is_valid(profile_data)) { 1659 return profile_data->size_in_bytes(); 1660 } 1661 DataLayout* data = mdo->extra_data_base(); 1662 DataLayout* end = mdo->extra_data_limit(); 1663 for (;; data = mdo->next_extra(data)) { 1664 assert(data < end, "moved past end of extra data"); 1665 profile_data = data->data_in(); 1666 if (mdo->dp_to_di(profile_data->dp()) == position) { 1667 return profile_data->size_in_bytes(); 1668 } 1669 } 1670 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position)); 1671 C2V_END 1672 1673 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type)) 1674 if (jvmci_type == NULL) { 1675 JVMCI_THROW_0(NullPointerException); 1676 } 1677 1678 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1679 if (klass == NULL) { 1680 JVMCI_THROW_0(NullPointerException); 1681 } 1682 if (!klass->is_instance_klass()) { 1683 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name())); 1684 } 1685 InstanceKlass* iklass = InstanceKlass::cast(klass); 1686 1687 // Regular instance klass, fill in all local interfaces 1688 int size = iklass->local_interfaces()->length(); 1689 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL); 1690 for (int index = 0; index < size; index++) { 1691 JVMCIKlassHandle klass(THREAD); 1692 Klass* k = iklass->local_interfaces()->at(index); 1693 klass = k; 1694 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 1695 JVMCIENV->put_object_at(interfaces, index, type); 1696 } 1697 return JVMCIENV->get_jobject(interfaces); 1698 C2V_END 1699 1700 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type)) 1701 if (jvmci_type == NULL) { 1702 JVMCI_THROW_0(NullPointerException); 1703 } 1704 1705 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1706 oop mirror = klass->java_mirror(); 1707 if (java_lang_Class::is_primitive(mirror) || 1708 !java_lang_Class::as_Klass(mirror)->is_array_klass()) { 1709 return NULL; 1710 } 1711 1712 oop component_mirror = java_lang_Class::component_mirror(mirror); 1713 if (component_mirror == NULL) { 1714 return NULL; 1715 } 1716 Klass* component_klass = java_lang_Class::as_Klass(component_mirror); 1717 if (component_klass != NULL) { 1718 JVMCIKlassHandle klass_handle(THREAD); 1719 klass_handle = component_klass; 1720 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL); 1721 return JVMCIENV->get_jobject(result); 1722 } 1723 BasicType type = java_lang_Class::primitive_type(component_mirror); 1724 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type); 1725 return JVMCIENV->get_jobject(result); 1726 C2V_END 1727 1728 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type)) 1729 if (jvmci_type == NULL) { 1730 JVMCI_THROW(NullPointerException); 1731 } 1732 1733 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1734 if (klass != NULL && klass->should_be_initialized()) { 1735 InstanceKlass* k = InstanceKlass::cast(klass); 1736 k->initialize(CHECK); 1737 } 1738 C2V_END 1739 1740 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, jobject jvmci_type)) 1741 if (jvmci_type == NULL) { 1742 JVMCI_THROW(NullPointerException); 1743 } 1744 1745 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1746 if (klass != NULL && klass->is_instance_klass()) { 1747 InstanceKlass* k = InstanceKlass::cast(klass); 1748 k->link_class(CHECK); 1749 } 1750 C2V_END 1751 1752 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle)) 1753 if (bytecode_frame_handle == NULL) { 1754 JVMCI_THROW_0(NullPointerException); 1755 } 1756 1757 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle); 1758 JVMCIObject bytecode_frame = top_bytecode_frame; 1759 int size = 0; 1760 int callee_parameters = 0; 1761 int callee_locals = 0; 1762 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame)); 1763 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame); 1764 1765 while (bytecode_frame.is_non_null()) { 1766 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame); 1767 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame); 1768 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame)); 1769 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame)); 1770 1771 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(), 1772 temps + callee_parameters, 1773 extra_args, 1774 locks, 1775 callee_parameters, 1776 callee_locals, 1777 is_top_frame); 1778 size += frame_size; 1779 1780 callee_parameters = method->size_of_parameters(); 1781 callee_locals = method->max_locals(); 1782 extra_args = 0; 1783 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame); 1784 } 1785 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord; 1786 C2V_END 1787 1788 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle)) 1789 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK); 1790 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) { 1791 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode"); 1792 JavaValue result(T_VOID); 1793 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK); 1794 } else { 1795 JVMCI_THROW_MSG(IllegalArgumentException, 1796 err_msg("Unexpected type: %s", lambda_form->klass()->external_name())) 1797 } 1798 C2V_END 1799 1800 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object)) 1801 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 1802 return obj->identity_hash(); 1803 C2V_END 1804 1805 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object)) 1806 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 1807 if (!java_lang_String::is_instance(str())) { 1808 return false; 1809 } 1810 int len; 1811 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false); 1812 return (StringTable::lookup(name, len) != NULL); 1813 C2V_END 1814 1815 1816 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object)) 1817 if (object == NULL) { 1818 JVMCI_THROW_0(NullPointerException); 1819 } 1820 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 1821 BasicType type = java_lang_boxing_object::basic_type(box()); 1822 jvalue result; 1823 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) { 1824 return NULL; 1825 } 1826 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL); 1827 return JVMCIENV->get_jobject(boxResult); 1828 C2V_END 1829 1830 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object)) 1831 if (object == NULL) { 1832 JVMCI_THROW_0(NullPointerException); 1833 } 1834 JVMCIObject box = JVMCIENV->wrap(object); 1835 BasicType type = JVMCIENV->get_box_type(box); 1836 if (type == T_ILLEGAL) { 1837 return NULL; 1838 } 1839 jvalue value = JVMCIENV->get_boxed_value(type, box); 1840 JavaValue box_result(T_OBJECT); 1841 JavaCallArguments jargs; 1842 Klass* box_klass = NULL; 1843 Symbol* box_signature = NULL; 1844 #define BOX_CASE(bt, v, argtype, name) \ 1845 case bt: \ 1846 jargs.push_##argtype(value.v); \ 1847 box_klass = vmClasses::name##_klass(); \ 1848 box_signature = vmSymbols::name##_valueOf_signature(); \ 1849 break 1850 1851 switch (type) { 1852 BOX_CASE(T_BOOLEAN, z, int, Boolean); 1853 BOX_CASE(T_BYTE, b, int, Byte); 1854 BOX_CASE(T_CHAR, c, int, Character); 1855 BOX_CASE(T_SHORT, s, int, Short); 1856 BOX_CASE(T_INT, i, int, Integer); 1857 BOX_CASE(T_LONG, j, long, Long); 1858 BOX_CASE(T_FLOAT, f, float, Float); 1859 BOX_CASE(T_DOUBLE, d, double, Double); 1860 default: 1861 ShouldNotReachHere(); 1862 } 1863 #undef BOX_CASE 1864 1865 JavaCalls::call_static(&box_result, 1866 box_klass, 1867 vmSymbols::valueOf_name(), 1868 box_signature, &jargs, CHECK_NULL); 1869 oop hotspot_box = box_result.get_oop(); 1870 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false); 1871 return JVMCIENV->get_jobject(result); 1872 C2V_END 1873 1874 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder)) 1875 if (holder == NULL) { 1876 JVMCI_THROW_0(NullPointerException); 1877 } 1878 Klass* klass = JVMCIENV->asKlass(holder); 1879 if (!klass->is_instance_klass()) { 1880 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL); 1881 return JVMCIENV->get_jobjectArray(methods); 1882 } 1883 1884 InstanceKlass* iklass = InstanceKlass::cast(klass); 1885 // Ensure class is linked 1886 iklass->link_class(CHECK_NULL); 1887 1888 GrowableArray<Method*> constructors_array; 1889 for (int i = 0; i < iklass->methods()->length(); i++) { 1890 Method* m = iklass->methods()->at(i); 1891 if (m->is_initializer() && !m->is_static()) { 1892 constructors_array.append(m); 1893 } 1894 } 1895 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL); 1896 for (int i = 0; i < constructors_array.length(); i++) { 1897 methodHandle ctor(THREAD, constructors_array.at(i)); 1898 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL); 1899 JVMCIENV->put_object_at(methods, i, method); 1900 } 1901 return JVMCIENV->get_jobjectArray(methods); 1902 C2V_END 1903 1904 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder)) 1905 if (holder == NULL) { 1906 JVMCI_THROW_0(NullPointerException); 1907 } 1908 Klass* klass = JVMCIENV->asKlass(holder); 1909 if (!klass->is_instance_klass()) { 1910 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL); 1911 return JVMCIENV->get_jobjectArray(methods); 1912 } 1913 1914 InstanceKlass* iklass = InstanceKlass::cast(klass); 1915 // Ensure class is linked 1916 iklass->link_class(CHECK_NULL); 1917 1918 GrowableArray<Method*> methods_array; 1919 for (int i = 0; i < iklass->methods()->length(); i++) { 1920 Method* m = iklass->methods()->at(i); 1921 if (!m->is_initializer() && !m->is_overpass()) { 1922 methods_array.append(m); 1923 } 1924 } 1925 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL); 1926 for (int i = 0; i < methods_array.length(); i++) { 1927 methodHandle mh(THREAD, methods_array.at(i)); 1928 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL); 1929 JVMCIENV->put_object_at(methods, i, method); 1930 } 1931 return JVMCIENV->get_jobjectArray(methods); 1932 C2V_END 1933 1934 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject expected_type, jlong displacement, jobject kind_object)) 1935 if (object == NULL || kind_object == NULL) { 1936 JVMCI_THROW_0(NullPointerException); 1937 } 1938 1939 JVMCIObject kind = JVMCIENV->wrap(kind_object); 1940 BasicType basic_type = JVMCIENV->kindToBasicType(kind, JVMCI_CHECK_NULL); 1941 1942 InstanceKlass* holder = NULL; 1943 if (expected_type != NULL) { 1944 holder = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(expected_type))); 1945 } 1946 1947 bool is_static = false; 1948 Handle obj; 1949 JVMCIObject base = JVMCIENV->wrap(object); 1950 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) { 1951 obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL); 1952 // asConstant will throw an NPE if a constant contains NULL 1953 1954 if (holder != NULL && !obj->is_a(holder)) { 1955 // Not a subtype of field holder 1956 return NULL; 1957 } 1958 is_static = false; 1959 if (holder == NULL && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields()) { 1960 is_static = true; 1961 } 1962 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) { 1963 is_static = true; 1964 Klass* klass = JVMCIENV->asKlass(base); 1965 if (holder != NULL && holder != klass) { 1966 return NULL; 1967 } 1968 obj = Handle(THREAD, klass->java_mirror()); 1969 } else { 1970 // The Java code is expected to guard against this path 1971 ShouldNotReachHere(); 1972 } 1973 1974 int basic_type_elemsize = type2aelembytes(basic_type); 1975 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) { 1976 // Reading outside of the object bounds 1977 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds"); 1978 } 1979 1980 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the 1981 // bounds of their fields but object reads must map exactly onto the underlying oop slot. 1982 bool aligned = (displacement % basic_type_elemsize) == 0; 1983 if (!aligned) { 1984 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned"); 1985 } 1986 if (basic_type == T_OBJECT) { 1987 if (obj->is_objArray()) { 1988 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) { 1989 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header"); 1990 } 1991 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) { 1992 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element"); 1993 } 1994 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) { 1995 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array"); 1996 } 1997 } else if (obj->is_instance()) { 1998 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass()); 1999 fieldDescriptor fd; 2000 if (!klass->find_field_from_offset(displacement, is_static, &fd)) { 2001 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name())); 2002 } 2003 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) { 2004 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement, 2005 klass->external_name(), type2name(fd.field_type()), type2name(basic_type))); 2006 } 2007 } else if (obj->is_typeArray()) { 2008 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array"); 2009 } else { 2010 ShouldNotReachHere(); 2011 } 2012 } else { 2013 if (obj->is_objArray()) { 2014 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array"); 2015 } else if (obj->is_typeArray()) { 2016 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) { 2017 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header"); 2018 } 2019 } 2020 } 2021 2022 jlong value = 0; 2023 2024 // Treat all reads as volatile for simplicity as this function can be used 2025 // both for reading Java fields declared as volatile as well as for constant 2026 // folding Unsafe.get* methods with volatile semantics. 2027 2028 switch (basic_type) { 2029 case T_BOOLEAN: value = obj->bool_field_acquire(displacement); break; 2030 case T_BYTE: value = obj->byte_field_acquire(displacement); break; 2031 case T_SHORT: value = obj->short_field_acquire(displacement); break; 2032 case T_CHAR: value = obj->char_field_acquire(displacement); break; 2033 case T_FLOAT: 2034 case T_INT: value = obj->int_field_acquire(displacement); break; 2035 case T_DOUBLE: 2036 case T_LONG: value = obj->long_field_acquire(displacement); break; 2037 2038 case T_OBJECT: { 2039 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) && 2040 (java_lang_Class::as_Klass(obj()) == NULL || !java_lang_Class::as_Klass(obj())->is_array_klass())) { 2041 // Class.componentType for non-array classes can transiently contain an int[] that's 2042 // used for locking so always return null to mimic Class.getComponentType() 2043 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 2044 } 2045 2046 oop value = obj->obj_field_acquire(displacement); 2047 2048 if (value == NULL) { 2049 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 2050 } else { 2051 if (value != NULL && !oopDesc::is_oop(value)) { 2052 // Throw an exception to improve debuggability. This check isn't totally reliable because 2053 // is_oop doesn't try to be completety safe but for most invalid values it provides a good 2054 // enough answer. It possible to crash in the is_oop call but that just means the crash happens 2055 // closer to where things went wrong. 2056 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s", 2057 p2i(value), displacement, p2i(obj()), obj->klass()->external_name())); 2058 } 2059 2060 JVMCIObject result = JVMCIENV->get_object_constant(value); 2061 return JVMCIENV->get_jobject(result); 2062 } 2063 } 2064 2065 default: 2066 ShouldNotReachHere(); 2067 } 2068 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(kind, value, JVMCI_CHECK_NULL); 2069 return JVMCIENV->get_jobject(result); 2070 C2V_END 2071 2072 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object)) 2073 if (object == NULL || holder == NULL) { 2074 JVMCI_THROW_0(NullPointerException); 2075 } 2076 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 2077 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder)); 2078 return obj->is_a(klass); 2079 C2V_END 2080 2081 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder)) 2082 if (holder == NULL || otherHolder == NULL) { 2083 JVMCI_THROW_0(NullPointerException); 2084 } 2085 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder)); 2086 Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder)); 2087 return otherKlass->is_subtype_of(klass); 2088 C2V_END 2089 2090 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder)) 2091 if (holder == NULL) { 2092 JVMCI_THROW_0(NullPointerException); 2093 } 2094 InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder))); 2095 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) { 2096 return true; 2097 } 2098 return false; 2099 C2V_END 2100 2101 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object)) 2102 if (object == NULL) { 2103 JVMCI_THROW_0(NullPointerException); 2104 } 2105 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2106 if (java_lang_Class::is_instance(obj())) { 2107 if (java_lang_Class::is_primitive(obj())) { 2108 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj())); 2109 return JVMCIENV->get_jobject(type); 2110 } 2111 Klass* klass = java_lang_Class::as_Klass(obj()); 2112 JVMCIKlassHandle klass_handle(THREAD); 2113 klass_handle = klass; 2114 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL); 2115 return JVMCIENV->get_jobject(type); 2116 } 2117 return NULL; 2118 C2V_END 2119 2120 2121 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object)) 2122 if (object == NULL) { 2123 JVMCI_THROW_0(NullPointerException); 2124 } 2125 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2126 const char* str = java_lang_String::as_utf8_string(obj()); 2127 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL); 2128 return JVMCIENV->get_jobject(result); 2129 C2V_END 2130 2131 2132 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle)) 2133 if (x == NULL || y == NULL) { 2134 JVMCI_THROW_0(NullPointerException); 2135 } 2136 return JVMCIENV->resolve_oop_handle(xHandle) == JVMCIENV->resolve_oop_handle(yHandle); 2137 C2V_END 2138 2139 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object)) 2140 if (object == NULL) { 2141 JVMCI_THROW_0(NullPointerException); 2142 } 2143 JVMCIObject base_object = JVMCIENV->wrap(object); 2144 Handle mirror; 2145 if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) { 2146 mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror()); 2147 } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) { 2148 mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL); 2149 } else { 2150 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2151 err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object))); 2152 } 2153 JVMCIObject result = JVMCIENV->get_object_constant(mirror()); 2154 return JVMCIENV->get_jobject(result); 2155 C2V_END 2156 2157 2158 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x)) 2159 if (x == NULL) { 2160 JVMCI_THROW_0(NullPointerException); 2161 } 2162 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0); 2163 if (xobj->klass()->is_array_klass()) { 2164 return arrayOop(xobj())->length(); 2165 } 2166 return -1; 2167 C2V_END 2168 2169 2170 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index)) 2171 if (x == NULL) { 2172 JVMCI_THROW_0(NullPointerException); 2173 } 2174 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL); 2175 if (xobj->klass()->is_array_klass()) { 2176 arrayOop array = arrayOop(xobj()); 2177 BasicType element_type = ArrayKlass::cast(array->klass())->element_type(); 2178 if (index < 0 || index >= array->length()) { 2179 return NULL; 2180 } 2181 JVMCIObject result; 2182 2183 if (element_type == T_OBJECT) { 2184 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index)); 2185 if (result.is_null()) { 2186 result = JVMCIENV->get_JavaConstant_NULL_POINTER(); 2187 } 2188 } else { 2189 jvalue value; 2190 switch (element_type) { 2191 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break; 2192 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break; 2193 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break; 2194 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break; 2195 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break; 2196 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break; 2197 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break; 2198 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break; 2199 default: ShouldNotReachHere(); 2200 } 2201 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL); 2202 } 2203 assert(!result.is_null(), "must have a value"); 2204 return JVMCIENV->get_jobject(result); 2205 } 2206 return NULL;; 2207 C2V_END 2208 2209 2210 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind)) 2211 if (kind == NULL) { 2212 JVMCI_THROW_0(NullPointerException); 2213 } 2214 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0); 2215 return arrayOopDesc::header_size(type) * HeapWordSize; 2216 C2V_END 2217 2218 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind)) 2219 if (kind == NULL) { 2220 JVMCI_THROW_0(NullPointerException); 2221 } 2222 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0); 2223 return type2aelembytes(type); 2224 C2V_END 2225 2226 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong handle)) 2227 if (handle != 0) { 2228 JVMCIENV->runtime()->destroy_oop_handle(handle); 2229 } 2230 } 2231 2232 static void requireJVMCINativeLibrary(JVMCI_TRAPS) { 2233 if (!UseJVMCINativeLibrary) { 2234 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)"); 2235 } 2236 } 2237 2238 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror)) 2239 requireJVMCINativeLibrary(JVMCI_CHECK_NULL); 2240 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL); 2241 char* sl_path; 2242 void* sl_handle; 2243 JVMCIRuntime* runtime; 2244 { 2245 // Ensure the JVMCI shared library runtime is initialized. 2246 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__); 2247 JVMCIEnv* peerEnv = &__peer_jvmci_env__; 2248 HandleMark hm(THREAD); 2249 runtime = JVMCI::compiler_runtime(thread); 2250 if (peerEnv->has_pending_exception()) { 2251 peerEnv->describe_pending_exception(true); 2252 } 2253 sl_handle = JVMCI::get_shared_library(sl_path, false); 2254 if (sl_handle == NULL) { 2255 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id())); 2256 } 2257 } 2258 2259 if (mirror == NULL) { 2260 JVMCI_THROW_0(NullPointerException); 2261 } 2262 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror)); 2263 if (klass == NULL || !klass->is_instance_klass()) { 2264 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type"); 2265 } 2266 2267 InstanceKlass* iklass = InstanceKlass::cast(klass); 2268 for (int i = 0; i < iklass->methods()->length(); i++) { 2269 methodHandle method(THREAD, iklass->methods()->at(i)); 2270 if (method->is_native()) { 2271 2272 // Compute argument size 2273 int args_size = 1 // JNIEnv 2274 + (method->is_static() ? 1 : 0) // class for static methods 2275 + method->size_of_parameters(); // actual parameters 2276 2277 // 1) Try JNI short style 2278 stringStream st; 2279 char* pure_name = NativeLookup::pure_jni_name(method); 2280 guarantee(pure_name != NULL, "Illegal native method name encountered"); 2281 os::print_jni_name_prefix_on(&st, args_size); 2282 st.print_raw(pure_name); 2283 os::print_jni_name_suffix_on(&st, args_size); 2284 char* jni_name = st.as_string(); 2285 2286 address entry = (address) os::dll_lookup(sl_handle, jni_name); 2287 if (entry == NULL) { 2288 // 2) Try JNI long style 2289 st.reset(); 2290 char* long_name = NativeLookup::long_jni_name(method); 2291 guarantee(long_name != NULL, "Illegal native method name encountered"); 2292 os::print_jni_name_prefix_on(&st, args_size); 2293 st.print_raw(pure_name); 2294 st.print_raw(long_name); 2295 os::print_jni_name_suffix_on(&st, args_size); 2296 char* jni_long_name = st.as_string(); 2297 entry = (address) os::dll_lookup(sl_handle, jni_long_name); 2298 if (entry == NULL) { 2299 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]", 2300 method->name_and_sig_as_C_string(), 2301 jni_name, jni_long_name, sl_path)); 2302 } 2303 } 2304 2305 if (method->has_native_function() && entry != method->native_function()) { 2306 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]", 2307 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry))); 2308 } 2309 method->set_native_function(entry, Method::native_bind_event_is_interesting); 2310 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT, 2311 method->method_holder()->external_name(), 2312 method->name()->as_C_string(), 2313 p2i((void*) entry)); 2314 } 2315 } 2316 2317 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0); 2318 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop); 2319 runtime->init_JavaVM_info(info, JVMCI_CHECK_0); 2320 return info; 2321 } 2322 2323 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm)) 2324 if (thread == nullptr || thread->libjvmci_runtime() == nullptr) { 2325 // Called from unattached JVMCI shared library thread 2326 return false; 2327 } 2328 JVMCITraceMark jtm("isCurrentThreadAttached"); 2329 if (thread->jni_environment() == env) { 2330 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject)) 2331 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2332 JVMCIRuntime* runtime = thread->libjvmci_runtime(); 2333 if (runtime == nullptr || !runtime->has_shared_library_javavm()) { 2334 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached"); 2335 } 2336 JNIEnv* peerEnv; 2337 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK; 2338 } 2339 return true; 2340 C2V_END 2341 2342 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm)) 2343 if (thread == NULL) { 2344 // Called from unattached JVMCI shared library thread 2345 return 0L; 2346 } 2347 JVMCITraceMark jtm("getCurrentJavaThread"); 2348 return (jlong) p2i(thread); 2349 C2V_END 2350 2351 // Attaches a thread started in a JVMCI shared library to a JavaThread and JVMCI runtime. 2352 static void attachSharedLibraryThread(JNIEnv* env, jbyteArray name, jboolean as_daemon) { 2353 JavaVM* javaVM = nullptr; 2354 jint res = env->GetJavaVM(&javaVM); 2355 if (res != JNI_OK) { 2356 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Error getting shared library JavaVM from shared library JNIEnv: %d", res)); 2357 } 2358 extern struct JavaVM_ main_vm; 2359 JNIEnv* hotspotEnv; 2360 2361 int name_len = env->GetArrayLength(name); 2362 char name_buf[64]; // Cannot use Resource heap as it requires a current thread 2363 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1); 2364 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf); 2365 name_buf[to_copy] = '\0'; 2366 JavaVMAttachArgs attach_args; 2367 attach_args.version = JNI_VERSION_1_2; 2368 attach_args.name = name_buf; 2369 attach_args.group = nullptr; 2370 res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, &attach_args) : 2371 main_vm.AttachCurrentThread((void**)&hotspotEnv, &attach_args); 2372 if (res != JNI_OK) { 2373 JNI_THROW("attachSharedLibraryThread", InternalError, err_msg("Trying to attach thread returned %d", res)); 2374 } 2375 JavaThread* thread = get_current_thread(false); 2376 const char* attach_error; 2377 { 2378 // Transition to VM 2379 JVMCI_VM_ENTRY_MARK 2380 attach_error = JVMCIRuntime::attach_shared_library_thread(thread, javaVM); 2381 // Transition back to Native 2382 } 2383 if (attach_error != nullptr) { 2384 JNI_THROW("attachCurrentThread", InternalError, attach_error); 2385 } 2386 } 2387 2388 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon, jlongArray javaVM_info)) 2389 if (thread == nullptr) { 2390 attachSharedLibraryThread(env, name, as_daemon); 2391 return true; 2392 } 2393 JVMCITraceMark jtm("attachCurrentThread"); 2394 if (thread->jni_environment() == env) { 2395 // Called from HotSpot 2396 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean)) 2397 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2398 2399 JVMCIRuntime* runtime = JVMCI::compiler_runtime(thread); 2400 JNIEnv* peerJNIEnv; 2401 if (runtime->has_shared_library_javavm()) { 2402 if (runtime->GetEnv(thread, (void**)&peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) { 2403 // Already attached 2404 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0); 2405 return false; 2406 } 2407 } 2408 2409 { 2410 // Ensure the JVMCI shared library runtime is initialized. 2411 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__); 2412 JVMCIEnv* peerJVMCIEnv = &__peer_jvmci_env__; 2413 HandleMark hm(thread); 2414 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerJVMCIEnv); 2415 if (peerJVMCIEnv->has_pending_exception()) { 2416 peerJVMCIEnv->describe_pending_exception(true); 2417 } 2418 char* sl_path; 2419 if (JVMCI::get_shared_library(sl_path, false) == nullptr) { 2420 JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime"); 2421 } 2422 } 2423 2424 JavaVMAttachArgs attach_args; 2425 attach_args.version = JNI_VERSION_1_2; 2426 attach_args.name = const_cast<char*>(thread->name()); 2427 attach_args.group = nullptr; 2428 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) : 2429 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args); 2430 2431 if (res == JNI_OK) { 2432 guarantee(peerJNIEnv != nullptr, "must be"); 2433 runtime->init_JavaVM_info(javaVM_info, JVMCI_CHECK_0); 2434 JVMCI_event_1("attached to JavaVM[%d] for JVMCI runtime %d", runtime->get_shared_library_javavm_id(), runtime->id()); 2435 return true; 2436 } 2437 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name)); 2438 } 2439 // Called from JVMCI shared library 2440 return false; 2441 C2V_END 2442 2443 C2V_VMENTRY_PREFIX(jboolean, detachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean release)) 2444 if (thread == nullptr) { 2445 // Called from unattached JVMCI shared library thread 2446 JNI_THROW_("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread", false); 2447 } 2448 JVMCITraceMark jtm("detachCurrentThread"); 2449 if (thread->jni_environment() == env) { 2450 // Called from HotSpot 2451 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject)) 2452 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2453 requireInHotSpot("detachCurrentThread", JVMCI_CHECK_0); 2454 JVMCIRuntime* runtime = thread->libjvmci_runtime(); 2455 if (runtime == nullptr || !runtime->has_shared_library_javavm()) { 2456 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread"); 2457 } 2458 JNIEnv* peerEnv; 2459 2460 if (runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) != JNI_OK) { 2461 JVMCI_THROW_MSG_0(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name())); 2462 } 2463 jint res = runtime->DetachCurrentThread(thread); 2464 if (res != JNI_OK) { 2465 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, thread->name())); 2466 } 2467 JVMCI_event_1("detached from JavaVM[%d] for JVMCI runtime %d", 2468 runtime->get_shared_library_javavm_id(), runtime->id()); 2469 if (release) { 2470 return runtime->detach_thread(thread, "user thread detach"); 2471 } 2472 } else { 2473 // Called from attached JVMCI shared library thread 2474 if (release) { 2475 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread cannot release JVMCI shared library JavaVM", false); 2476 } 2477 JVMCIRuntime* runtime = thread->libjvmci_runtime(); 2478 if (runtime == nullptr) { 2479 JNI_THROW_("detachCurrentThread", InternalError, "JVMCI shared library thread should have a JVMCI runtime", false); 2480 } 2481 { 2482 // Transition to VM 2483 C2V_BLOCK(jboolean, detachCurrentThread, (JNIEnv* env, jobject)) 2484 // Cannot destroy shared library JavaVM as we're about to return to it. 2485 runtime->detach_thread(thread, "shared library thread detach", false); 2486 JVMCI_event_1("detaching JVMCI shared library thread from HotSpot JavaVM"); 2487 // Transition back to Native 2488 } 2489 extern struct JavaVM_ main_vm; 2490 jint res = main_vm.DetachCurrentThread(); 2491 if (res != JNI_OK) { 2492 JNI_THROW_("detachCurrentThread", InternalError, "Cannot detach non-attached thread", false); 2493 } 2494 } 2495 return false; 2496 C2V_END 2497 2498 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation)) 2499 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2500 if (obj_handle == NULL) { 2501 return 0L; 2502 } 2503 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__); 2504 JVMCIEnv* peerEnv = &__peer_jvmci_env__; 2505 JVMCIEnv* thisEnv = JVMCIENV; 2506 2507 JVMCIObject obj = thisEnv->wrap(obj_handle); 2508 JVMCIObject result; 2509 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) { 2510 methodHandle method(THREAD, thisEnv->asMethod(obj)); 2511 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0); 2512 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) { 2513 Klass* klass = thisEnv->asKlass(obj); 2514 JVMCIKlassHandle klass_handle(THREAD); 2515 klass_handle = klass; 2516 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0); 2517 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) { 2518 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0); 2519 result = peerEnv->get_jvmci_primitive_type(type); 2520 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) || 2521 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) { 2522 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0); 2523 result = peerEnv->get_object_constant(constant()); 2524 } else if (thisEnv->isa_HotSpotNmethod(obj)) { 2525 nmethodLocker locker; 2526 nmethod* nm = JVMCIENV->get_nmethod(obj, locker); 2527 if (nm != NULL) { 2528 JVMCINMethodData* data = nm->jvmci_nmethod_data(); 2529 if (data != NULL) { 2530 if (peerEnv->is_hotspot()) { 2531 // Only the mirror in the HotSpot heap is accessible 2532 // through JVMCINMethodData 2533 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true); 2534 if (nmethod_mirror != NULL) { 2535 result = HotSpotJVMCI::wrap(nmethod_mirror); 2536 } 2537 } 2538 } 2539 } 2540 if (result.is_null()) { 2541 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj); 2542 methodHandle mh(THREAD, thisEnv->asMethod(methodObject)); 2543 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj); 2544 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj); 2545 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj); 2546 const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string); 2547 // Create a new HotSpotNmethod instance in the peer runtime 2548 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0); 2549 if (result.is_null()) { 2550 // exception occurred (e.g. OOME) creating a new HotSpotNmethod 2551 } else if (nm == NULL) { 2552 // nmethod must have been unloaded 2553 } else { 2554 // Link the new HotSpotNmethod to the nmethod 2555 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0); 2556 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime. 2557 if (peerEnv->is_hotspot()) { 2558 JVMCINMethodData* data = nm->jvmci_nmethod_data(); 2559 if (data == NULL) { 2560 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod"); 2561 } 2562 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) { 2563 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod"); 2564 } 2565 oop nmethod_mirror = HotSpotJVMCI::resolve(result); 2566 data->set_nmethod_mirror(nm, nmethod_mirror); 2567 } 2568 } 2569 } 2570 } else { 2571 JVMCI_THROW_MSG_0(IllegalArgumentException, 2572 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj))); 2573 } 2574 if (callPostTranslation) { 2575 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0); 2576 } 2577 // Propagate any exception that occurred while creating the translated object 2578 if (peerEnv->transfer_pending_exception(thread, thisEnv)) { 2579 return 0L; 2580 } 2581 return (jlong) peerEnv->make_global(result).as_jobject(); 2582 } 2583 2584 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle)) 2585 requireJVMCINativeLibrary(JVMCI_CHECK_NULL); 2586 if (obj_handle == 0L) { 2587 return NULL; 2588 } 2589 jobject global_handle = (jobject) obj_handle; 2590 JVMCIObject global_handle_obj = JVMCIENV->wrap(global_handle); 2591 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject(); 2592 2593 JVMCIENV->destroy_global(global_handle_obj); 2594 return result; 2595 } 2596 2597 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle)) 2598 JVMCIObject code = JVMCIENV->wrap(code_handle); 2599 // Execute this operation for the side effect of updating the InstalledCode state 2600 nmethodLocker locker; 2601 JVMCIENV->get_nmethod(code, locker); 2602 } 2603 2604 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle)) 2605 JVMCIObject code = JVMCIENV->wrap(code_handle); 2606 nmethodLocker locker; 2607 CodeBlob* cb = JVMCIENV->get_code_blob(code, locker); 2608 if (cb == NULL) { 2609 return NULL; 2610 } 2611 int code_size = cb->code_size(); 2612 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL); 2613 JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size); 2614 return JVMCIENV->get_jbyteArray(result); 2615 } 2616 2617 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method)) 2618 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL); 2619 methodHandle m(THREAD, JVMCIENV->asMethod(jvmci_method)); 2620 oop executable; 2621 if (m->is_initializer()) { 2622 if (m->is_static_initializer()) { 2623 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2624 "Cannot create java.lang.reflect.Method for class initializer"); 2625 } 2626 executable = Reflection::new_constructor(m, CHECK_NULL); 2627 } else { 2628 executable = Reflection::new_method(m, false, CHECK_NULL); 2629 } 2630 return JNIHandles::make_local(THREAD, executable); 2631 } 2632 2633 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index)) 2634 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL); 2635 Klass* klass = JVMCIENV->asKlass(jvmci_type); 2636 if (!klass->is_instance_klass()) { 2637 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2638 err_msg("Expected non-primitive type, got %s", klass->external_name())); 2639 } 2640 InstanceKlass* iklass = InstanceKlass::cast(klass); 2641 Array<u2>* fields = iklass->fields(); 2642 if (index < 0 ||index > fields->length()) { 2643 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2644 err_msg("Field index %d out of bounds for %s", index, klass->external_name())); 2645 } 2646 fieldDescriptor fd(iklass, index); 2647 oop reflected = Reflection::new_field(&fd, CHECK_NULL); 2648 return JNIHandles::make_local(THREAD, reflected); 2649 } 2650 2651 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current)) 2652 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address); 2653 int result_length = 0; 2654 for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) { 2655 result_length++; 2656 } 2657 int current_length = 0; 2658 JVMCIObjectArray current_array = NULL; 2659 if (current != NULL) { 2660 current_array = JVMCIENV->wrap(current); 2661 current_length = JVMCIENV->get_length(current_array); 2662 if (current_length == result_length) { 2663 // No new failures 2664 return current; 2665 } 2666 } 2667 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL); 2668 int result_index = 0; 2669 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) { 2670 assert(fs != NULL, "npe"); 2671 JVMCIPrimitiveArray entry; 2672 if (result_index < current_length) { 2673 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index); 2674 } else { 2675 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL); 2676 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len()); 2677 } 2678 JVMCIENV->put_object_at(result, result_index++, entry); 2679 } 2680 return JVMCIENV->get_jobjectArray(result); 2681 } 2682 2683 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method)) 2684 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 2685 MethodData* method_data = method->method_data(); 2686 if (method_data == NULL) { 2687 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); 2688 method_data = MethodData::allocate(loader_data, method, CHECK_0); 2689 method->set_method_data(method_data); 2690 } 2691 return (jlong) method_data->get_failed_speculations_address(); 2692 } 2693 2694 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address)) 2695 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address); 2696 } 2697 2698 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj)) 2699 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj); 2700 int speculation_len = JVMCIENV->get_length(speculation_handle); 2701 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len); 2702 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len); 2703 return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len); 2704 } 2705 2706 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status)) 2707 JavaValue result(T_VOID); 2708 JavaCallArguments jargs(1); 2709 jargs.push_int(status); 2710 JavaCalls::call_static(&result, 2711 vmClasses::System_klass(), 2712 vmSymbols::exit_method_name(), 2713 vmSymbols::int_void_signature(), 2714 &jargs, 2715 CHECK); 2716 } 2717 2718 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject)) 2719 return CompilerEvent::ticksNow(); 2720 } 2721 2722 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name)) 2723 #if INCLUDE_JFR 2724 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name); 2725 const char *name = JVMCIENV->as_utf8_string(phase_name); 2726 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true); 2727 #else 2728 return -1; 2729 #endif // !INCLUDE_JFR 2730 } 2731 2732 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level)) 2733 EventCompilerPhase event; 2734 if (event.should_commit()) { 2735 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level); 2736 } 2737 } 2738 2739 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, jobject caller, jobject callee, jboolean succeeded, jstring jmessage, jint bci)) 2740 EventCompilerInlining event; 2741 if (event.should_commit()) { 2742 Method* caller_method = JVMCIENV->asMethod(caller); 2743 Method* callee_method = JVMCIENV->asMethod(callee); 2744 JVMCIObject message = JVMCIENV->wrap(jmessage); 2745 CompilerEvent::InlineEvent::post(event, compileId, caller_method, callee_method, succeeded, JVMCIENV->as_utf8_string(message), bci); 2746 } 2747 } 2748 2749 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value)) 2750 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK); 2751 if (id == 0) { 2752 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value)); 2753 return; 2754 } 2755 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 2756 err_msg("%d is not a valid thread local id", id)); 2757 } 2758 2759 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id)) 2760 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL); 2761 if (id == 0) { 2762 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0()); 2763 } 2764 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 2765 err_msg("%d is not a valid thread local id", id)); 2766 } 2767 2768 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value)) 2769 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK); 2770 if (id == 0) { 2771 thread->set_jvmci_reserved0(value); 2772 } else if (id == 1) { 2773 thread->set_jvmci_reserved1(value); 2774 } else { 2775 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 2776 err_msg("%d is not a valid thread local id", id)); 2777 } 2778 } 2779 2780 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id)) 2781 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0); 2782 if (id == 0) { 2783 return thread->get_jvmci_reserved0(); 2784 } else if (id == 1) { 2785 return thread->get_jvmci_reserved1(); 2786 } else { 2787 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 2788 err_msg("%d is not a valid thread local id", id)); 2789 } 2790 } 2791 2792 #define CC (char*) /*cast a literal from (const char*)*/ 2793 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f)) 2794 2795 #define STRING "Ljava/lang/String;" 2796 #define OBJECT "Ljava/lang/Object;" 2797 #define CLASS "Ljava/lang/Class;" 2798 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;" 2799 #define HANDLECONSTANT "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;" 2800 #define EXECUTABLE "Ljava/lang/reflect/Executable;" 2801 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;" 2802 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;" 2803 #define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;" 2804 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;" 2805 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;" 2806 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;" 2807 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;" 2808 #define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;" 2809 #define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;" 2810 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;" 2811 #define HS_RESOLVED_FIELD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;" 2812 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;" 2813 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;" 2814 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;" 2815 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;" 2816 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;" 2817 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;" 2818 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;" 2819 #define METASPACE_OBJECT "Ljdk/vm/ci/hotspot/MetaspaceObject;" 2820 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;" 2821 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;" 2822 #define METASPACE_METHOD_DATA "J" 2823 2824 JNINativeMethod CompilerToVM::methods[] = { 2825 {CC "getBytecode", CC "(" HS_RESOLVED_METHOD ")[B", FN_PTR(getBytecode)}, 2826 {CC "getExceptionTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getExceptionTableStart)}, 2827 {CC "getExceptionTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getExceptionTableLength)}, 2828 {CC "findUniqueConcreteMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)}, 2829 {CC "getImplementor", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getImplementor)}, 2830 {CC "getStackTraceElement", CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)}, 2831 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)}, 2832 {CC "setNotInlinableOrCompilable", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(setNotInlinableOrCompilable)}, 2833 {CC "isCompilable", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(isCompilable)}, 2834 {CC "hasNeverInlineDirective", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(hasNeverInlineDirective)}, 2835 {CC "shouldInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(shouldInlineMethod)}, 2836 {CC "lookupType", CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)}, 2837 {CC "getArrayType", CC "(" HS_RESOLVED_TYPE ")" HS_RESOLVED_KLASS, FN_PTR(getArrayType)}, 2838 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)}, 2839 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupNameInPool)}, 2840 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)}, 2841 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupSignatureInPool)}, 2842 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupKlassRefIndexInPool)}, 2843 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)}, 2844 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)}, 2845 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)}, 2846 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)}, 2847 {CC "resolveBootstrapMethod", CC "(" HS_CONSTANT_POOL "I)[" OBJECT, FN_PTR(resolveBootstrapMethod)}, 2848 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL "I)" JAVACONSTANT, FN_PTR(resolvePossiblyCachedConstantInPool)}, 2849 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)}, 2850 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)}, 2851 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeDynamicInPool)}, 2852 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeHandleInPool)}, 2853 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(isResolvedInvokeHandleInPool)}, 2854 {CC "resolveMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)}, 2855 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)}, 2856 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I", FN_PTR(getVtableIndexForInterfaceMethod)}, 2857 {CC "getClassInitializer", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)}, 2858 {CC "hasFinalizableSubclass", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(hasFinalizableSubclass)}, 2859 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)}, 2860 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD, FN_PTR(asResolvedJavaMethod)}, 2861 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)}, 2862 {CC "getConstantPool", CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL, FN_PTR(getConstantPool)}, 2863 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType0)}, 2864 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)}, 2865 {CC "installCode", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I", FN_PTR(installCode)}, 2866 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)}, 2867 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)}, 2868 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)}, 2869 {CC "getLineNumberTable", CC "(" HS_RESOLVED_METHOD ")[J", FN_PTR(getLineNumberTable)}, 2870 {CC "getLocalVariableTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getLocalVariableTableStart)}, 2871 {CC "getLocalVariableTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getLocalVariableTableLength)}, 2872 {CC "reprofile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(reprofile)}, 2873 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(invalidateHotSpotNmethod)}, 2874 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)}, 2875 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)}, 2876 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)}, 2877 {CC "allocateCompileId", CC "(" HS_RESOLVED_METHOD "I)I", FN_PTR(allocateCompileId)}, 2878 {CC "isMature", CC "(" METASPACE_METHOD_DATA ")Z", FN_PTR(isMature)}, 2879 {CC "hasCompiledCodeForOSR", CC "(" HS_RESOLVED_METHOD "II)Z", FN_PTR(hasCompiledCodeForOSR)}, 2880 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)}, 2881 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)}, 2882 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)}, 2883 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)}, 2884 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)}, 2885 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)}, 2886 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)}, 2887 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)}, 2888 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)}, 2889 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)}, 2890 {CC "getInterfaces", CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS, FN_PTR(getInterfaces)}, 2891 {CC "getComponentType", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)}, 2892 {CC "ensureInitialized", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureInitialized)}, 2893 {CC "ensureLinked", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureLinked)}, 2894 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)}, 2895 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)}, 2896 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)}, 2897 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)}, 2898 {CC "getDeclaredConstructors", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)}, 2899 {CC "getDeclaredMethods", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)}, 2900 {CC "readFieldValue", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS "JLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)}, 2901 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_RESOLVED_KLASS "JLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)}, 2902 {CC "isInstance", CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z", FN_PTR(isInstance)}, 2903 {CC "isAssignableFrom", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z", FN_PTR(isAssignableFrom)}, 2904 {CC "isTrustedForIntrinsics", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(isTrustedForIntrinsics)}, 2905 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)}, 2906 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)}, 2907 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)}, 2908 {CC "getJavaMirror", CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)}, 2909 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)}, 2910 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)}, 2911 {CC "arrayBaseOffset", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayBaseOffset)}, 2912 {CC "arrayIndexScale", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayIndexScale)}, 2913 {CC "deleteGlobalHandle", CC "(J)V", FN_PTR(deleteGlobalHandle)}, 2914 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)}, 2915 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)}, 2916 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)}, 2917 {CC "attachCurrentThread", CC "([BZ[J)Z", FN_PTR(attachCurrentThread)}, 2918 {CC "detachCurrentThread", CC "(Z)Z", FN_PTR(detachCurrentThread)}, 2919 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)}, 2920 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)}, 2921 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)}, 2922 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)}, 2923 {CC "asReflectionExecutable", CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)}, 2924 {CC "asReflectionField", CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)}, 2925 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)}, 2926 {CC "getFailedSpeculationsAddress", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getFailedSpeculationsAddress)}, 2927 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)}, 2928 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)}, 2929 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)}, 2930 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)}, 2931 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)}, 2932 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)}, 2933 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)}, 2934 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)}, 2935 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)}, 2936 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)}, 2937 {CC "notifyCompilerInliningEvent", CC "(I" HS_RESOLVED_METHOD HS_RESOLVED_METHOD "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)}, 2938 }; 2939 2940 int CompilerToVM::methods_count() { 2941 return sizeof(methods) / sizeof(JNINativeMethod); 2942 }