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 } 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_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 629 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 630 return cp->name_and_type_ref_index_at(index); 631 C2V_END 632 633 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which)) 634 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 635 JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL); 636 return JVMCIENV->get_jobject(sym); 637 C2V_END 638 639 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which)) 640 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 641 JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL); 642 return JVMCIENV->get_jobject(sym); 643 C2V_END 644 645 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 646 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 647 return cp->klass_ref_index_at(index); 648 C2V_END 649 650 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 651 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 652 Klass* klass = cp->klass_at(index, CHECK_NULL); 653 JVMCIKlassHandle resolved_klass(THREAD, klass); 654 if (resolved_klass->is_instance_klass()) { 655 InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL); 656 if (!InstanceKlass::cast(resolved_klass())->is_linked()) { 657 // link_class() should not return here if there is an issue. 658 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name())); 659 } 660 } 661 JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL); 662 return JVMCIENV->get_jobject(klassObject); 663 C2V_END 664 665 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode)) 666 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 667 Klass* loading_klass = cp->pool_holder(); 668 bool is_accessible = false; 669 JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass)); 670 Symbol* symbol = NULL; 671 if (klass.is_null()) { 672 constantTag tag = cp->tag_at(index); 673 if (tag.is_klass()) { 674 // The klass has been inserted into the constant pool 675 // very recently. 676 klass = cp->resolved_klass_at(index); 677 } else if (tag.is_symbol()) { 678 symbol = cp->symbol_at(index); 679 } else { 680 assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag"); 681 symbol = cp->klass_name_at(index); 682 } 683 } 684 JVMCIObject result; 685 if (!klass.is_null()) { 686 result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 687 } else { 688 result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL); 689 } 690 return JVMCIENV->get_jobject(result); 691 C2V_END 692 693 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 694 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 695 oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index); 696 return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop)); 697 C2V_END 698 699 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode)) 700 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 701 InstanceKlass* pool_holder = cp->pool_holder(); 702 Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF); 703 methodHandle method(THREAD, JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder)); 704 JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL); 705 return JVMCIENV->get_jobject(result); 706 C2V_END 707 708 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 709 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 710 return cp->remap_instruction_operand_from_cache(index); 711 C2V_END 712 713 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle)) 714 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 715 Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF); 716 fieldDescriptor fd; 717 methodHandle mh(THREAD, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL); 718 LinkInfo link_info(cp, index, mh, CHECK_NULL); 719 LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_NULL); 720 JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle); 721 if (info.is_null() || JVMCIENV->get_length(info) != 3) { 722 JVMCI_ERROR_NULL("info must not be null and have a length of 3"); 723 } 724 JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int()); 725 JVMCIENV->put_int_at(info, 1, fd.offset()); 726 JVMCIENV->put_int_at(info, 2, fd.index()); 727 JVMCIKlassHandle handle(THREAD, fd.field_holder()); 728 JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL); 729 return JVMCIENV->get_jobject(field_holder); 730 C2V_END 731 732 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method)) 733 Klass* klass = JVMCIENV->asKlass(jvmci_type); 734 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 735 InstanceKlass* holder = method->method_holder(); 736 if (klass->is_interface()) { 737 JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name())); 738 } 739 if (!holder->is_interface()) { 740 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())); 741 } 742 if (!klass->is_instance_klass()) { 743 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name())); 744 } 745 if (!InstanceKlass::cast(klass)->is_linked()) { 746 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name())); 747 } 748 if (!klass->is_subtype_of(holder)) { 749 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s does not implement interface %s", klass->external_name(), holder->external_name())); 750 } 751 return LinkResolver::vtable_index_of_interface_method(klass, method); 752 C2V_END 753 754 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type)) 755 Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type); 756 Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type); 757 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 758 759 Klass* resolved = method->method_holder(); 760 Symbol* h_name = method->name(); 761 Symbol* h_signature = method->signature(); 762 763 if (MethodHandles::is_signature_polymorphic_method(method())) { 764 // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case. 765 return NULL; 766 } 767 768 if (method->name() == vmSymbols::clone_name() && 769 resolved == vmClasses::Object_klass() && 770 recv_klass->is_array_klass()) { 771 // Resolution of the clone method on arrays always returns Object.clone even though that method 772 // has protected access. There's some trickery in the access checking to make this all work out 773 // so it's necessary to pass in the array class as the resolved class to properly trigger this. 774 // Otherwise it's impossible to resolve the array clone methods through JVMCI. See 775 // LinkResolver::check_method_accessability for the matching logic. 776 resolved = recv_klass; 777 } 778 779 LinkInfo link_info(resolved, h_name, h_signature, caller_klass); 780 Method* m = NULL; 781 // Only do exact lookup if receiver klass has been linked. Otherwise, 782 // the vtable has not been setup, and the LinkResolver will fail. 783 if (recv_klass->is_array_klass() || 784 (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) { 785 if (resolved->is_interface()) { 786 m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info); 787 } else { 788 m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info); 789 } 790 } 791 792 if (m == NULL) { 793 // Return NULL if there was a problem with lookup (uninitialized class, etc.) 794 return NULL; 795 } 796 797 JVMCIObject result = JVMCIENV->get_jvmci_method(methodHandle(THREAD, m), JVMCI_CHECK_NULL); 798 return JVMCIENV->get_jobject(result); 799 C2V_END 800 801 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type)) 802 Klass* klass = JVMCIENV->asKlass(jvmci_type); 803 assert(klass != NULL, "method must not be called for primitive types"); 804 if (!klass->is_instance_klass()) { 805 return false; 806 } 807 InstanceKlass* iklass = InstanceKlass::cast(klass); 808 return Dependencies::find_finalizable_subclass(iklass) != NULL; 809 C2V_END 810 811 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type)) 812 Klass* klass = JVMCIENV->asKlass(jvmci_type); 813 if (!klass->is_instance_klass()) { 814 return NULL; 815 } 816 InstanceKlass* iklass = InstanceKlass::cast(klass); 817 methodHandle clinit(THREAD, iklass->class_initializer()); 818 JVMCIObject result = JVMCIENV->get_jvmci_method(clinit, JVMCI_CHECK_NULL); 819 return JVMCIENV->get_jobject(result); 820 C2V_END 821 822 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr)) 823 address target_addr = (address) addr; 824 if (target_addr != 0x0) { 825 int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int)); 826 int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int)); 827 return MAX2(ABS(off_low), ABS(off_high)); 828 } 829 return -1; 830 C2V_END 831 832 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject, jobject jvmci_method)) 833 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 834 method->set_not_c1_compilable(); 835 method->set_not_c2_compilable(); 836 method->set_dont_inline(true); 837 C2V_END 838 839 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code, 840 jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj)) 841 HandleMark hm(THREAD); 842 JNIHandleMark jni_hm(thread); 843 844 JVMCIObject target_handle = JVMCIENV->wrap(target); 845 JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code); 846 CodeBlob* cb = NULL; 847 JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code); 848 JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj); 849 850 int speculations_len = JVMCIENV->get_length(speculations_handle); 851 char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len); 852 JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len); 853 854 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR); 855 856 TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer(!thread->is_Compiler_thread())); 857 858 nmethodLocker nmethod_handle; 859 CodeInstaller installer(JVMCIENV); 860 JVMCI::CodeInstallResult result = installer.install(compiler, 861 target_handle, 862 compiled_code_handle, 863 cb, 864 nmethod_handle, 865 installed_code_handle, 866 (FailedSpeculation**)(address) failed_speculations_address, 867 speculations, 868 speculations_len, 869 JVMCI_CHECK_0); 870 871 if (PrintCodeCacheOnCompilation) { 872 stringStream s; 873 // Dump code cache into a buffer before locking the tty, 874 { 875 MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); 876 CodeCache::print_summary(&s, false); 877 } 878 ttyLocker ttyl; 879 tty->print_raw_cr(s.as_string()); 880 } 881 882 if (result != JVMCI::ok) { 883 assert(cb == NULL, "should be"); 884 } else { 885 if (installed_code_handle.is_non_null()) { 886 if (cb->is_nmethod()) { 887 assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type"); 888 // Clear the link to an old nmethod first 889 JVMCIObject nmethod_mirror = installed_code_handle; 890 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0); 891 } else { 892 assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type"); 893 } 894 // Initialize the link to the new code blob 895 JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0); 896 } 897 } 898 return result; 899 C2V_END 900 901 C2V_VMENTRY_0(jint, getMetadata, (JNIEnv *env, jobject, jobject target, jobject compiled_code, jobject metadata)) 902 JVMCI_THROW_MSG_0(InternalError, "unimplemented"); 903 C2V_END 904 905 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject)) 906 JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK); 907 CompilerStatistics* stats = compiler->stats(); 908 stats->_standard.reset(); 909 stats->_osr.reset(); 910 C2V_END 911 912 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode)) 913 HandleMark hm(THREAD); 914 915 if (installedCode == NULL) { 916 JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null"); 917 } 918 919 JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode); 920 nmethodLocker locker; 921 CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject, locker); 922 if (cb == NULL) { 923 return NULL; 924 } 925 926 // We don't want the stringStream buffer to resize during disassembly as it 927 // uses scoped resource memory. If a nested function called during disassembly uses 928 // a ResourceMark and the buffer expands within the scope of the mark, 929 // the buffer becomes garbage when that scope is exited. Experience shows that 930 // the disassembled code is typically about 10x the code size so a fixed buffer 931 // sized to 20x code size plus a fixed amount for header info should be sufficient. 932 int bufferSize = cb->code_size() * 20 + 1024; 933 char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize); 934 stringStream st(buffer, bufferSize); 935 if (cb->is_nmethod()) { 936 nmethod* nm = (nmethod*) cb; 937 if (!nm->is_alive()) { 938 return NULL; 939 } 940 } 941 Disassembler::decode(cb, &st); 942 if (st.size() <= 0) { 943 return NULL; 944 } 945 946 JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL); 947 return JVMCIENV->get_jobject(result); 948 C2V_END 949 950 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci)) 951 HandleMark hm(THREAD); 952 953 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 954 JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL); 955 return JVMCIENV->get_jobject(element); 956 C2V_END 957 958 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod)) 959 // The incoming arguments array would have to contain JavaConstants instead of regular objects 960 // and the return value would have to be wrapped as a JavaConstant. 961 requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL); 962 963 HandleMark hm(THREAD); 964 965 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod); 966 nmethodLocker locker; 967 nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, locker); 968 if (nm == NULL || !nm->is_in_use()) { 969 JVMCI_THROW_NULL(InvalidInstalledCodeException); 970 } 971 methodHandle mh(THREAD, nm->method()); 972 Symbol* signature = mh->signature(); 973 JavaCallArguments jca(mh->size_of_parameters()); 974 975 JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static()); 976 JavaValue result(jap.return_type()); 977 jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject()))); 978 JavaCalls::call(&result, mh, &jca, CHECK_NULL); 979 980 if (jap.return_type() == T_VOID) { 981 return NULL; 982 } else if (is_reference_type(jap.return_type())) { 983 return JNIHandles::make_local(THREAD, result.get_oop()); 984 } else { 985 jvalue *value = (jvalue *) result.get_value_addr(); 986 // Narrow the value down if required (Important on big endian machines) 987 switch (jap.return_type()) { 988 case T_BOOLEAN: 989 value->z = (jboolean) value->i; 990 break; 991 case T_BYTE: 992 value->b = (jbyte) value->i; 993 break; 994 case T_CHAR: 995 value->c = (jchar) value->i; 996 break; 997 case T_SHORT: 998 value->s = (jshort) value->i; 999 break; 1000 default: 1001 break; 1002 } 1003 JVMCIObject o = JVMCIENV->create_box(jap.return_type(), value, JVMCI_CHECK_NULL); 1004 return JVMCIENV->get_jobject(o); 1005 } 1006 C2V_END 1007 1008 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method)) 1009 Method* method = JVMCIENV->asMethod(jvmci_method); 1010 if (!method->has_linenumber_table()) { 1011 return NULL; 1012 } 1013 u2 num_entries = 0; 1014 CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table()); 1015 while (streamForSize.read_pair()) { 1016 num_entries++; 1017 } 1018 1019 CompressedLineNumberReadStream stream(method->compressed_linenumber_table()); 1020 JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL); 1021 1022 int i = 0; 1023 jlong value; 1024 while (stream.read_pair()) { 1025 // FIXME: Why was this long before? 1026 value = ((jlong) stream.bci()); 1027 JVMCIENV->put_long_at(result, i, value); 1028 value = ((jlong) stream.line()); 1029 JVMCIENV->put_long_at(result, i + 1, value); 1030 i += 2; 1031 } 1032 1033 return (jlongArray) JVMCIENV->get_jobject(result); 1034 C2V_END 1035 1036 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method)) 1037 Method* method = JVMCIENV->asMethod(jvmci_method); 1038 if (!method->has_localvariable_table()) { 1039 return 0; 1040 } 1041 return (jlong) (address) method->localvariable_table_start(); 1042 C2V_END 1043 1044 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method)) 1045 Method* method = JVMCIENV->asMethod(jvmci_method); 1046 return method->localvariable_table_length(); 1047 C2V_END 1048 1049 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method)) 1050 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 1051 MethodCounters* mcs = method->method_counters(); 1052 if (mcs != NULL) { 1053 mcs->clear_counters(); 1054 } 1055 NOT_PRODUCT(method->set_compiled_invocation_count(0)); 1056 1057 CompiledMethod* code = method->code(); 1058 if (code != NULL) { 1059 code->make_not_entrant(); 1060 } 1061 1062 MethodData* method_data = method->method_data(); 1063 if (method_data == NULL) { 1064 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); 1065 method_data = MethodData::allocate(loader_data, method, CHECK); 1066 method->set_method_data(method_data); 1067 } else { 1068 method_data->initialize(); 1069 } 1070 C2V_END 1071 1072 1073 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod)) 1074 JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod); 1075 JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK); 1076 C2V_END 1077 1078 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject)) 1079 // Returns a zero length array if counters aren't enabled 1080 JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL); 1081 if (JVMCICounterSize > 0) { 1082 jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize); 1083 JavaThread::collect_counters(temp_array, JVMCICounterSize); 1084 JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize); 1085 } 1086 return (jlongArray) JVMCIENV->get_jobject(array); 1087 C2V_END 1088 1089 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject)) 1090 return (jint) JVMCICounterSize; 1091 C2V_END 1092 1093 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size)) 1094 return JavaThread::resize_all_jvmci_counters(new_size); 1095 C2V_END 1096 1097 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci)) 1098 HandleMark hm(THREAD); 1099 if (jvmci_method == NULL) { 1100 JVMCI_THROW_0(NullPointerException); 1101 } 1102 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 1103 if (entry_bci >= method->code_size() || entry_bci < -1) { 1104 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci)); 1105 } 1106 return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci); 1107 C2V_END 1108 1109 1110 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data)) 1111 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data); 1112 return mdo != NULL && mdo->is_mature(); 1113 C2V_END 1114 1115 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level)) 1116 Method* method = JVMCIENV->asMethod(jvmci_method); 1117 return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL; 1118 C2V_END 1119 1120 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol)) 1121 JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL); 1122 return JVMCIENV->get_jobject(sym); 1123 C2V_END 1124 1125 /* 1126 * Used by matches() to convert a ResolvedJavaMethod[] to an array of Method*. 1127 */ 1128 GrowableArray<Method*>* init_resolved_methods(jobjectArray methods, JVMCIEnv* JVMCIENV) { 1129 objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods); 1130 GrowableArray<Method*>* resolved_methods = new GrowableArray<Method*>(methods_oop->length()); 1131 for (int i = 0; i < methods_oop->length(); i++) { 1132 oop resolved = methods_oop->obj_at(i); 1133 Method* resolved_method = NULL; 1134 if (resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) { 1135 resolved_method = HotSpotJVMCI::asMethod(JVMCIENV, resolved); 1136 } 1137 resolved_methods->append(resolved_method); 1138 } 1139 return resolved_methods; 1140 } 1141 1142 /* 1143 * Used by c2v_iterateFrames to check if `method` matches one of the ResolvedJavaMethods in the `methods` array. 1144 * The ResolvedJavaMethod[] array is converted to a Method* array that is then cached in the resolved_methods_ref in/out parameter. 1145 * In case of a match, the matching ResolvedJavaMethod is returned in matched_jvmci_method_ref. 1146 */ 1147 bool matches(jobjectArray methods, Method* method, GrowableArray<Method*>** resolved_methods_ref, Handle* matched_jvmci_method_ref, Thread* THREAD, JVMCIEnv* JVMCIENV) { 1148 GrowableArray<Method*>* resolved_methods = *resolved_methods_ref; 1149 if (resolved_methods == NULL) { 1150 resolved_methods = init_resolved_methods(methods, JVMCIENV); 1151 *resolved_methods_ref = resolved_methods; 1152 } 1153 assert(method != NULL, "method should not be NULL"); 1154 assert(resolved_methods->length() == ((objArrayOop) JNIHandles::resolve(methods))->length(), "arrays must have the same length"); 1155 for (int i = 0; i < resolved_methods->length(); i++) { 1156 Method* m = resolved_methods->at(i); 1157 if (m == method) { 1158 *matched_jvmci_method_ref = Handle(THREAD, ((objArrayOop) JNIHandles::resolve(methods))->obj_at(i)); 1159 return true; 1160 } 1161 } 1162 return false; 1163 } 1164 1165 /* 1166 * Resolves an interface call to a concrete method handle. 1167 */ 1168 methodHandle resolve_interface_call(Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) { 1169 CallInfo callinfo; 1170 Handle receiver = args->receiver(); 1171 Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass(); 1172 LinkInfo link_info(spec_klass, name, signature); 1173 LinkResolver::resolve_interface_call( 1174 callinfo, receiver, recvrKlass, link_info, true, CHECK_(methodHandle())); 1175 methodHandle method(THREAD, callinfo.selected_method()); 1176 assert(method.not_null(), "should have thrown exception"); 1177 return method; 1178 } 1179 1180 /* 1181 * Used by c2v_iterateFrames to make a new vframeStream at the given compiled frame id (stack pointer) and vframe id. 1182 */ 1183 void resync_vframestream_to_compiled_frame(vframeStream& vfst, intptr_t* stack_pointer, int vframe_id, JavaThread* thread, TRAPS) { 1184 vfst = vframeStream(thread); 1185 while (vfst.frame_id() != stack_pointer && !vfst.at_end()) { 1186 vfst.next(); 1187 } 1188 if (vfst.frame_id() != stack_pointer) { 1189 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt") 1190 } 1191 if (vfst.is_interpreted_frame()) { 1192 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected") 1193 } 1194 while (vfst.vframe_id() != vframe_id) { 1195 if (vfst.at_end()) { 1196 THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt") 1197 } 1198 vfst.next(); 1199 assert(!vfst.is_interpreted_frame(), "Wrong frame type"); 1200 } 1201 } 1202 1203 /* 1204 * Used by c2v_iterateFrames. Returns an array of any unallocated scope objects or NULL if none. 1205 */ 1206 GrowableArray<ScopeValue*>* get_unallocated_objects_or_null(GrowableArray<ScopeValue*>* scope_objects) { 1207 GrowableArray<ScopeValue*>* unallocated = NULL; 1208 for (int i = 0; i < scope_objects->length(); i++) { 1209 ObjectValue* sv = (ObjectValue*) scope_objects->at(i); 1210 if (sv->value().is_null()) { 1211 if (unallocated == NULL) { 1212 unallocated = new GrowableArray<ScopeValue*>(scope_objects->length()); 1213 } 1214 unallocated->append(sv); 1215 } 1216 } 1217 return unallocated; 1218 } 1219 1220 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle)) 1221 1222 if (!thread->has_last_Java_frame()) { 1223 return NULL; 1224 } 1225 Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle)); 1226 1227 requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL); 1228 1229 HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL); 1230 1231 vframeStream vfst(thread); 1232 jobjectArray methods = initial_methods; 1233 methodHandle visitor_method; 1234 GrowableArray<Method*>* resolved_methods = NULL; 1235 1236 while (!vfst.at_end()) { // frame loop 1237 bool realloc_called = false; 1238 intptr_t* frame_id = vfst.frame_id(); 1239 1240 // Previous compiledVFrame of this frame; use with at_scope() to reuse scope object pool. 1241 compiledVFrame* prev_cvf = NULL; 1242 1243 for (; !vfst.at_end() && vfst.frame_id() == frame_id; vfst.next()) { // vframe loop 1244 int frame_number = 0; 1245 Method *method = vfst.method(); 1246 int bci = vfst.bci(); 1247 1248 Handle matched_jvmci_method; 1249 if (methods == NULL || matches(methods, method, &resolved_methods, &matched_jvmci_method, THREAD, JVMCIENV)) { 1250 if (initialSkip > 0) { 1251 initialSkip--; 1252 continue; 1253 } 1254 javaVFrame* vf; 1255 if (prev_cvf != NULL && prev_cvf->frame_pointer()->id() == frame_id) { 1256 assert(prev_cvf->is_compiled_frame(), "expected compiled Java frame"); 1257 vf = prev_cvf->at_scope(vfst.decode_offset(), vfst.vframe_id()); 1258 } else { 1259 vf = vfst.asJavaVFrame(); 1260 } 1261 1262 StackValueCollection* locals = NULL; 1263 typeArrayHandle localIsVirtual_h; 1264 if (vf->is_compiled_frame()) { 1265 // compiled method frame 1266 compiledVFrame* cvf = compiledVFrame::cast(vf); 1267 1268 ScopeDesc* scope = cvf->scope(); 1269 // native wrappers do not have a scope 1270 if (scope != NULL && scope->objects() != NULL) { 1271 prev_cvf = cvf; 1272 1273 GrowableArray<ScopeValue*>* objects = NULL; 1274 if (!realloc_called) { 1275 objects = scope->objects(); 1276 } else { 1277 // some object might already have been re-allocated, only reallocate the non-allocated ones 1278 objects = get_unallocated_objects_or_null(scope->objects()); 1279 } 1280 1281 if (objects != NULL) { 1282 RegisterMap reg_map(vf->register_map()); 1283 bool realloc_failures = Deoptimization::realloc_objects(thread, vf->frame_pointer(), ®_map, objects, CHECK_NULL); 1284 Deoptimization::reassign_fields(vf->frame_pointer(), ®_map, objects, realloc_failures, false, CHECK_NULL); 1285 realloc_called = true; 1286 } 1287 1288 GrowableArray<ScopeValue*>* local_values = scope->locals(); 1289 for (int i = 0; i < local_values->length(); i++) { 1290 ScopeValue* value = local_values->at(i); 1291 if (value->is_object()) { 1292 if (localIsVirtual_h.is_null()) { 1293 typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL); 1294 localIsVirtual_h = typeArrayHandle(THREAD, array_oop); 1295 } 1296 localIsVirtual_h->bool_at_put(i, true); 1297 } 1298 } 1299 } 1300 1301 locals = cvf->locals(); 1302 frame_number = cvf->vframe_id(); 1303 } else { 1304 // interpreted method frame 1305 interpretedVFrame* ivf = interpretedVFrame::cast(vf); 1306 1307 locals = ivf->locals(); 1308 } 1309 assert(bci == vf->bci(), "wrong bci"); 1310 assert(method == vf->method(), "wrong method"); 1311 1312 Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL); 1313 HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), bci); 1314 if (matched_jvmci_method.is_null()) { 1315 methodHandle mh(THREAD, method); 1316 JVMCIObject jvmci_method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL); 1317 matched_jvmci_method = Handle(THREAD, JNIHandles::resolve(jvmci_method.as_jobject())); 1318 } 1319 HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), matched_jvmci_method()); 1320 HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), localIsVirtual_h()); 1321 1322 HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM)); 1323 HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) frame_id); 1324 HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number); 1325 1326 // initialize the locals array 1327 objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL); 1328 objArrayHandle array(THREAD, array_oop); 1329 for (int i = 0; i < locals->size(); i++) { 1330 StackValue* var = locals->at(i); 1331 if (var->type() == T_OBJECT) { 1332 array->obj_at_put(i, locals->at(i)->get_obj()()); 1333 } 1334 } 1335 HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array()); 1336 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE); 1337 1338 JavaValue result(T_OBJECT); 1339 JavaCallArguments args(visitor); 1340 if (visitor_method.is_null()) { 1341 visitor_method = resolve_interface_call(HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL); 1342 } 1343 1344 args.push_oop(frame_reference); 1345 JavaCalls::call(&result, visitor_method, &args, CHECK_NULL); 1346 if (result.get_oop() != NULL) { 1347 return JNIHandles::make_local(thread, result.get_oop()); 1348 } 1349 if (methods == initial_methods) { 1350 methods = match_methods; 1351 if (resolved_methods != NULL && JNIHandles::resolve(match_methods) != JNIHandles::resolve(initial_methods)) { 1352 resolved_methods = NULL; 1353 } 1354 } 1355 assert(initialSkip == 0, "There should be no match before initialSkip == 0"); 1356 if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) { 1357 // the frame has been deoptimized, we need to re-synchronize the frame and vframe 1358 prev_cvf = NULL; 1359 intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference()); 1360 resync_vframestream_to_compiled_frame(vfst, stack_pointer, frame_number, thread, CHECK_NULL); 1361 } 1362 } 1363 } // end of vframe loop 1364 } // end of frame loop 1365 1366 // the end was reached without finding a matching method 1367 return NULL; 1368 C2V_END 1369 1370 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 1371 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 1372 CallInfo callInfo; 1373 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK); 1374 ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index); 1375 cp_cache_entry->set_dynamic_call(cp, callInfo); 1376 C2V_END 1377 1378 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 1379 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 1380 Klass* holder = cp->klass_ref_at(index, CHECK); 1381 Symbol* name = cp->name_ref_at(index); 1382 if (MethodHandles::is_signature_polymorphic_name(holder, name)) { 1383 CallInfo callInfo; 1384 LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK); 1385 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); 1386 cp_cache_entry->set_method_handle(cp, callInfo); 1387 } 1388 C2V_END 1389 1390 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index)) 1391 constantPoolHandle cp(THREAD, JVMCIENV->asConstantPool(jvmci_constant_pool)); 1392 ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index)); 1393 if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) { 1394 // MethodHandle.invoke* --> LambdaForm? 1395 ResourceMark rm; 1396 1397 LinkInfo link_info(cp, index, CATCH); 1398 1399 Klass* resolved_klass = link_info.resolved_klass(); 1400 1401 Symbol* name_sym = cp->name_ref_at(index); 1402 1403 vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!"); 1404 vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!"); 1405 1406 methodHandle adapter_method(THREAD, cp_cache_entry->f1_as_method()); 1407 1408 methodHandle resolved_method(adapter_method); 1409 1410 // Can we treat it as a regular invokevirtual? 1411 if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) { 1412 vmassert(!resolved_method->is_static(),"!"); 1413 vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!"); 1414 vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!"); 1415 vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!"); 1416 1417 methodHandle m(THREAD, LinkResolver::linktime_resolve_virtual_method_or_null(link_info)); 1418 vmassert(m == resolved_method, "!!"); 1419 return -1; 1420 } 1421 1422 return Bytecodes::_invokevirtual; 1423 } 1424 if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) { 1425 return Bytecodes::_invokedynamic; 1426 } 1427 return -1; 1428 C2V_END 1429 1430 1431 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject)) 1432 JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL); 1433 JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL); 1434 JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL); 1435 JVMCIENV->put_object_at(holders, 0, mh); 1436 JVMCIENV->put_object_at(holders, 1, vh); 1437 return JVMCIENV->get_jobject(holders); 1438 C2V_END 1439 1440 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject)) 1441 //see compute_recording_non_safepoints in debugInfroRec.cpp 1442 if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) { 1443 return true; 1444 } 1445 return DebugNonSafepoints; 1446 C2V_END 1447 1448 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate); 1449 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate)) 1450 JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame); 1451 if (hs_frame.is_null()) { 1452 JVMCI_THROW_MSG(NullPointerException, "stack frame is null"); 1453 } 1454 1455 requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK); 1456 1457 JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK); 1458 1459 // look for the given stack frame 1460 StackFrameStream fst(thread, false /* update */, true /* process_frames */); 1461 intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame); 1462 while (fst.current()->id() != stack_pointer && !fst.is_done()) { 1463 fst.next(); 1464 } 1465 if (fst.current()->id() != stack_pointer) { 1466 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found"); 1467 } 1468 1469 if (invalidate) { 1470 if (!fst.current()->is_compiled_frame()) { 1471 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected"); 1472 } 1473 assert(fst.current()->cb()->is_nmethod(), "nmethod expected"); 1474 ((nmethod*) fst.current()->cb())->make_not_entrant(); 1475 } 1476 Deoptimization::deoptimize(thread, *fst.current(), Deoptimization::Reason_none); 1477 // look for the frame again as it has been updated by deopt (pc, deopt state...) 1478 StackFrameStream fstAfterDeopt(thread, true /* update */, true /* process_frames */); 1479 while (fstAfterDeopt.current()->id() != stack_pointer && !fstAfterDeopt.is_done()) { 1480 fstAfterDeopt.next(); 1481 } 1482 if (fstAfterDeopt.current()->id() != stack_pointer) { 1483 JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt"); 1484 } 1485 1486 vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread); 1487 if (!vf->is_compiled_frame()) { 1488 JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected"); 1489 } 1490 1491 GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10); 1492 while (true) { 1493 assert(vf->is_compiled_frame(), "Wrong frame type"); 1494 virtualFrames->push(compiledVFrame::cast(vf)); 1495 if (vf->is_top()) { 1496 break; 1497 } 1498 vf = vf->sender(); 1499 } 1500 1501 int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame); 1502 if (last_frame_number >= virtualFrames->length()) { 1503 JVMCI_THROW_MSG(IllegalStateException, "invalid frame number"); 1504 } 1505 1506 // Reallocate the non-escaping objects and restore their fields. 1507 assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope"); 1508 GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects(); 1509 1510 if (objects == NULL) { 1511 // no objects to materialize 1512 return; 1513 } 1514 1515 bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK); 1516 Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false, THREAD); 1517 1518 for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) { 1519 compiledVFrame* cvf = virtualFrames->at(frame_index); 1520 1521 GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals(); 1522 StackValueCollection* locals = cvf->locals(); 1523 if (locals != NULL) { 1524 for (int i2 = 0; i2 < locals->size(); i2++) { 1525 StackValue* var = locals->at(i2); 1526 if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) { 1527 jvalue val; 1528 val.l = cast_from_oop<jobject>(locals->at(i2)->get_obj()()); 1529 cvf->update_local(T_OBJECT, i2, val); 1530 } 1531 } 1532 } 1533 1534 GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions(); 1535 StackValueCollection* expressions = cvf->expressions(); 1536 if (expressions != NULL) { 1537 for (int i2 = 0; i2 < expressions->size(); i2++) { 1538 StackValue* var = expressions->at(i2); 1539 if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) { 1540 jvalue val; 1541 val.l = cast_from_oop<jobject>(expressions->at(i2)->get_obj()()); 1542 cvf->update_stack(T_OBJECT, i2, val); 1543 } 1544 } 1545 } 1546 1547 GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors(); 1548 GrowableArray<MonitorInfo*>* monitors = cvf->monitors(); 1549 if (monitors != NULL) { 1550 for (int i2 = 0; i2 < monitors->length(); i2++) { 1551 cvf->update_monitor(i2, monitors->at(i2)); 1552 } 1553 } 1554 } 1555 1556 // all locals are materialized by now 1557 JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL); 1558 // update the locals array 1559 JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame); 1560 StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals(); 1561 for (int i = 0; i < locals->size(); i++) { 1562 StackValue* var = locals->at(i); 1563 if (var->type() == T_OBJECT) { 1564 JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()())); 1565 } 1566 } 1567 HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE); 1568 C2V_END 1569 1570 // Use of tty does not require the current thread to be attached to the VM 1571 // so no need for a full C2V_VMENTRY transition. 1572 C2V_VMENTRY_PREFIX(void, writeDebugOutput, (JNIEnv* env, jobject, jlong buffer, jint length, bool flush)) 1573 if (length <= 8) { 1574 tty->write((char*) &buffer, length); 1575 } else { 1576 tty->write((char*) buffer, length); 1577 } 1578 if (flush) { 1579 tty->flush(); 1580 } 1581 C2V_END 1582 1583 // Use of tty does not require the current thread to be attached to the VM 1584 // so no need for a full C2V_VMENTRY transition. 1585 C2V_VMENTRY_PREFIX(void, flushDebugOutput, (JNIEnv* env, jobject)) 1586 tty->flush(); 1587 C2V_END 1588 1589 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position)) 1590 MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data); 1591 ProfileData* profile_data = mdo->data_at(position); 1592 if (mdo->is_valid(profile_data)) { 1593 return profile_data->size_in_bytes(); 1594 } 1595 DataLayout* data = mdo->extra_data_base(); 1596 DataLayout* end = mdo->extra_data_limit(); 1597 for (;; data = mdo->next_extra(data)) { 1598 assert(data < end, "moved past end of extra data"); 1599 profile_data = data->data_in(); 1600 if (mdo->dp_to_di(profile_data->dp()) == position) { 1601 return profile_data->size_in_bytes(); 1602 } 1603 } 1604 JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position)); 1605 C2V_END 1606 1607 C2V_VMENTRY_0(jlong, getFingerprint, (JNIEnv* env, jobject, jlong metaspace_klass)) 1608 JVMCI_THROW_MSG_0(InternalError, "unimplemented"); 1609 C2V_END 1610 1611 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type)) 1612 if (jvmci_type == NULL) { 1613 JVMCI_THROW_0(NullPointerException); 1614 } 1615 1616 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1617 if (klass == NULL) { 1618 JVMCI_THROW_0(NullPointerException); 1619 } 1620 if (!klass->is_instance_klass()) { 1621 JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name())); 1622 } 1623 InstanceKlass* iklass = InstanceKlass::cast(klass); 1624 1625 // Regular instance klass, fill in all local interfaces 1626 int size = iklass->local_interfaces()->length(); 1627 JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL); 1628 for (int index = 0; index < size; index++) { 1629 JVMCIKlassHandle klass(THREAD); 1630 Klass* k = iklass->local_interfaces()->at(index); 1631 klass = k; 1632 JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL); 1633 JVMCIENV->put_object_at(interfaces, index, type); 1634 } 1635 return JVMCIENV->get_jobject(interfaces); 1636 C2V_END 1637 1638 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type)) 1639 if (jvmci_type == NULL) { 1640 JVMCI_THROW_0(NullPointerException); 1641 } 1642 1643 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1644 oop mirror = klass->java_mirror(); 1645 if (java_lang_Class::is_primitive(mirror) || 1646 !java_lang_Class::as_Klass(mirror)->is_array_klass()) { 1647 return NULL; 1648 } 1649 1650 oop component_mirror = java_lang_Class::component_mirror(mirror); 1651 if (component_mirror == NULL) { 1652 return NULL; 1653 } 1654 Klass* component_klass = java_lang_Class::as_Klass(component_mirror); 1655 if (component_klass != NULL) { 1656 JVMCIKlassHandle klass_handle(THREAD); 1657 klass_handle = component_klass; 1658 JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL); 1659 return JVMCIENV->get_jobject(result); 1660 } 1661 BasicType type = java_lang_Class::primitive_type(component_mirror); 1662 JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type); 1663 return JVMCIENV->get_jobject(result); 1664 C2V_END 1665 1666 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type)) 1667 if (jvmci_type == NULL) { 1668 JVMCI_THROW(NullPointerException); 1669 } 1670 1671 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1672 if (klass != NULL && klass->should_be_initialized()) { 1673 InstanceKlass* k = InstanceKlass::cast(klass); 1674 k->initialize(CHECK); 1675 } 1676 C2V_END 1677 1678 C2V_VMENTRY(void, ensureLinked, (JNIEnv* env, jobject, jobject jvmci_type)) 1679 if (jvmci_type == NULL) { 1680 JVMCI_THROW(NullPointerException); 1681 } 1682 1683 Klass* klass = JVMCIENV->asKlass(jvmci_type); 1684 if (klass != NULL && klass->is_instance_klass()) { 1685 InstanceKlass* k = InstanceKlass::cast(klass); 1686 k->link_class(CHECK); 1687 } 1688 C2V_END 1689 1690 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle)) 1691 if (bytecode_frame_handle == NULL) { 1692 JVMCI_THROW_0(NullPointerException); 1693 } 1694 1695 JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle); 1696 JVMCIObject bytecode_frame = top_bytecode_frame; 1697 int size = 0; 1698 int callee_parameters = 0; 1699 int callee_locals = 0; 1700 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame)); 1701 int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame); 1702 1703 while (bytecode_frame.is_non_null()) { 1704 int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame); 1705 int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame); 1706 bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame)); 1707 Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame)); 1708 1709 int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(), 1710 temps + callee_parameters, 1711 extra_args, 1712 locks, 1713 callee_parameters, 1714 callee_locals, 1715 is_top_frame); 1716 size += frame_size; 1717 1718 callee_parameters = method->size_of_parameters(); 1719 callee_locals = method->max_locals(); 1720 extra_args = 0; 1721 bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame); 1722 } 1723 return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord; 1724 C2V_END 1725 1726 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle)) 1727 Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK); 1728 if (lambda_form->is_a(vmClasses::LambdaForm_klass())) { 1729 TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode"); 1730 JavaValue result(T_VOID); 1731 JavaCalls::call_special(&result, lambda_form, vmClasses::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK); 1732 } else { 1733 JVMCI_THROW_MSG(IllegalArgumentException, 1734 err_msg("Unexpected type: %s", lambda_form->klass()->external_name())) 1735 } 1736 C2V_END 1737 1738 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object)) 1739 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 1740 return obj->identity_hash(); 1741 C2V_END 1742 1743 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object)) 1744 Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 1745 if (!java_lang_String::is_instance(str())) { 1746 return false; 1747 } 1748 int len; 1749 jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_false); 1750 return (StringTable::lookup(name, len) != NULL); 1751 C2V_END 1752 1753 1754 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object)) 1755 if (object == NULL) { 1756 JVMCI_THROW_0(NullPointerException); 1757 } 1758 Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 1759 BasicType type = java_lang_boxing_object::basic_type(box()); 1760 jvalue result; 1761 if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) { 1762 return NULL; 1763 } 1764 JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL); 1765 return JVMCIENV->get_jobject(boxResult); 1766 C2V_END 1767 1768 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object)) 1769 if (object == NULL) { 1770 JVMCI_THROW_0(NullPointerException); 1771 } 1772 JVMCIObject box = JVMCIENV->wrap(object); 1773 BasicType type = JVMCIENV->get_box_type(box); 1774 if (type == T_ILLEGAL) { 1775 return NULL; 1776 } 1777 jvalue value = JVMCIENV->get_boxed_value(type, box); 1778 JavaValue box_result(T_OBJECT); 1779 JavaCallArguments jargs; 1780 Klass* box_klass = NULL; 1781 Symbol* box_signature = NULL; 1782 #define BOX_CASE(bt, v, argtype, name) \ 1783 case bt: \ 1784 jargs.push_##argtype(value.v); \ 1785 box_klass = vmClasses::name##_klass(); \ 1786 box_signature = vmSymbols::name##_valueOf_signature(); \ 1787 break 1788 1789 switch (type) { 1790 BOX_CASE(T_BOOLEAN, z, int, Boolean); 1791 BOX_CASE(T_BYTE, b, int, Byte); 1792 BOX_CASE(T_CHAR, c, int, Character); 1793 BOX_CASE(T_SHORT, s, int, Short); 1794 BOX_CASE(T_INT, i, int, Integer); 1795 BOX_CASE(T_LONG, j, long, Long); 1796 BOX_CASE(T_FLOAT, f, float, Float); 1797 BOX_CASE(T_DOUBLE, d, double, Double); 1798 default: 1799 ShouldNotReachHere(); 1800 } 1801 #undef BOX_CASE 1802 1803 JavaCalls::call_static(&box_result, 1804 box_klass, 1805 vmSymbols::valueOf_name(), 1806 box_signature, &jargs, CHECK_NULL); 1807 oop hotspot_box = box_result.get_oop(); 1808 JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false); 1809 return JVMCIENV->get_jobject(result); 1810 C2V_END 1811 1812 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder)) 1813 if (holder == NULL) { 1814 JVMCI_THROW_0(NullPointerException); 1815 } 1816 Klass* klass = JVMCIENV->asKlass(holder); 1817 if (!klass->is_instance_klass()) { 1818 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL); 1819 return JVMCIENV->get_jobjectArray(methods); 1820 } 1821 1822 InstanceKlass* iklass = InstanceKlass::cast(klass); 1823 // Ensure class is linked 1824 iklass->link_class(CHECK_NULL); 1825 1826 GrowableArray<Method*> constructors_array; 1827 for (int i = 0; i < iklass->methods()->length(); i++) { 1828 Method* m = iklass->methods()->at(i); 1829 if (m->is_object_constructor()) { 1830 constructors_array.append(m); 1831 } 1832 } 1833 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL); 1834 for (int i = 0; i < constructors_array.length(); i++) { 1835 methodHandle ctor(THREAD, constructors_array.at(i)); 1836 JVMCIObject method = JVMCIENV->get_jvmci_method(ctor, JVMCI_CHECK_NULL); 1837 JVMCIENV->put_object_at(methods, i, method); 1838 } 1839 return JVMCIENV->get_jobjectArray(methods); 1840 C2V_END 1841 1842 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder)) 1843 if (holder == NULL) { 1844 JVMCI_THROW_0(NullPointerException); 1845 } 1846 Klass* klass = JVMCIENV->asKlass(holder); 1847 if (!klass->is_instance_klass()) { 1848 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL); 1849 return JVMCIENV->get_jobjectArray(methods); 1850 } 1851 1852 InstanceKlass* iklass = InstanceKlass::cast(klass); 1853 // Ensure class is linked 1854 iklass->link_class(CHECK_NULL); 1855 1856 GrowableArray<Method*> methods_array; 1857 for (int i = 0; i < iklass->methods()->length(); i++) { 1858 Method* m = iklass->methods()->at(i); 1859 if (!(m->is_object_constructor() || m->is_class_initializer()) && !m->is_overpass()) { 1860 methods_array.append(m); 1861 } 1862 } 1863 JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL); 1864 for (int i = 0; i < methods_array.length(); i++) { 1865 methodHandle mh(THREAD, methods_array.at(i)); 1866 JVMCIObject method = JVMCIENV->get_jvmci_method(mh, JVMCI_CHECK_NULL); 1867 JVMCIENV->put_object_at(methods, i, method); 1868 } 1869 return JVMCIENV->get_jobjectArray(methods); 1870 C2V_END 1871 1872 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject expected_type, jlong displacement, jobject kind_object)) 1873 if (object == NULL || kind_object == NULL) { 1874 JVMCI_THROW_0(NullPointerException); 1875 } 1876 1877 JVMCIObject kind = JVMCIENV->wrap(kind_object); 1878 BasicType basic_type = JVMCIENV->kindToBasicType(kind, JVMCI_CHECK_NULL); 1879 1880 InstanceKlass* holder = NULL; 1881 if (expected_type != NULL) { 1882 holder = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(expected_type))); 1883 } 1884 1885 bool is_static = false; 1886 Handle obj; 1887 JVMCIObject base = JVMCIENV->wrap(object); 1888 if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) { 1889 obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL); 1890 // asConstant will throw an NPE if a constant contains NULL 1891 1892 if (holder != NULL && !obj->is_a(holder)) { 1893 // Not a subtype of field holder 1894 return NULL; 1895 } 1896 is_static = false; 1897 if (holder == NULL && java_lang_Class::is_instance(obj()) && displacement >= InstanceMirrorKlass::offset_of_static_fields()) { 1898 is_static = true; 1899 } 1900 } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) { 1901 is_static = true; 1902 Klass* klass = JVMCIENV->asKlass(base); 1903 if (holder != NULL && holder != klass) { 1904 return NULL; 1905 } 1906 obj = Handle(THREAD, klass->java_mirror()); 1907 } else { 1908 // The Java code is expected to guard against this path 1909 ShouldNotReachHere(); 1910 } 1911 1912 int basic_type_elemsize = type2aelembytes(basic_type); 1913 if (displacement < 0 || ((size_t) displacement + basic_type_elemsize > HeapWordSize * obj->size())) { 1914 // Reading outside of the object bounds 1915 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading outside object bounds"); 1916 } 1917 1918 // Perform basic sanity checks on the read. Primitive reads are permitted to read outside the 1919 // bounds of their fields but object reads must map exactly onto the underlying oop slot. 1920 bool aligned = (displacement % basic_type_elemsize) == 0; 1921 if (!aligned) { 1922 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "read is unaligned"); 1923 } 1924 if (basic_type == T_OBJECT) { 1925 if (obj->is_objArray()) { 1926 if (displacement < arrayOopDesc::base_offset_in_bytes(T_OBJECT)) { 1927 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header"); 1928 } 1929 if (displacement + heapOopSize > arrayOopDesc::base_offset_in_bytes(T_OBJECT) + arrayOop(obj())->length() * heapOopSize) { 1930 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading after last array element"); 1931 } 1932 if (((displacement - arrayOopDesc::base_offset_in_bytes(T_OBJECT)) % heapOopSize) != 0) { 1933 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "misaligned object read from array"); 1934 } 1935 } else if (obj->is_instance()) { 1936 InstanceKlass* klass = InstanceKlass::cast(is_static ? java_lang_Class::as_Klass(obj()) : obj->klass()); 1937 fieldDescriptor fd; 1938 if (!klass->find_field_from_offset(displacement, is_static, &fd)) { 1939 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Can't find field at displacement %d in object of type %s", (int) displacement, klass->external_name())); 1940 } 1941 if (fd.field_type() != T_OBJECT && fd.field_type() != T_ARRAY) { 1942 JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Field at displacement %d in object of type %s is %s but expected %s", (int) displacement, 1943 klass->external_name(), type2name(fd.field_type()), type2name(basic_type))); 1944 } 1945 } else if (obj->is_typeArray()) { 1946 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Can't read objects from primitive array"); 1947 } else { 1948 ShouldNotReachHere(); 1949 } 1950 } else { 1951 if (obj->is_objArray()) { 1952 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Reading primitive from object array"); 1953 } else if (obj->is_typeArray()) { 1954 if (displacement < arrayOopDesc::base_offset_in_bytes(ArrayKlass::cast(obj->klass())->element_type())) { 1955 JVMCI_THROW_MSG_NULL(IllegalArgumentException, "reading from array header"); 1956 } 1957 } 1958 } 1959 1960 jlong value = 0; 1961 1962 // Treat all reads as volatile for simplicity as this function can be used 1963 // both for reading Java fields declared as volatile as well as for constant 1964 // folding Unsafe.get* methods with volatile semantics. 1965 1966 switch (basic_type) { 1967 case T_BOOLEAN: value = obj->bool_field_acquire(displacement); break; 1968 case T_BYTE: value = obj->byte_field_acquire(displacement); break; 1969 case T_SHORT: value = obj->short_field_acquire(displacement); break; 1970 case T_CHAR: value = obj->char_field_acquire(displacement); break; 1971 case T_FLOAT: 1972 case T_INT: value = obj->int_field_acquire(displacement); break; 1973 case T_DOUBLE: 1974 case T_LONG: value = obj->long_field_acquire(displacement); break; 1975 1976 case T_OBJECT: { 1977 if (displacement == java_lang_Class::component_mirror_offset() && java_lang_Class::is_instance(obj()) && 1978 (java_lang_Class::as_Klass(obj()) == NULL || !java_lang_Class::as_Klass(obj())->is_array_klass())) { 1979 // Class.componentType for non-array classes can transiently contain an int[] that's 1980 // used for locking so always return null to mimic Class.getComponentType() 1981 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 1982 } 1983 1984 oop value = obj->obj_field_acquire(displacement); 1985 1986 if (value == NULL) { 1987 return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER()); 1988 } else { 1989 if (value != NULL && !oopDesc::is_oop(value)) { 1990 // Throw an exception to improve debuggability. This check isn't totally reliable because 1991 // is_oop doesn't try to be completety safe but for most invalid values it provides a good 1992 // enough answer. It possible to crash in the is_oop call but that just means the crash happens 1993 // closer to where things went wrong. 1994 JVMCI_THROW_MSG_NULL(InternalError, err_msg("Read bad oop " INTPTR_FORMAT " at offset " JLONG_FORMAT " in object " INTPTR_FORMAT " of type %s", 1995 p2i(value), displacement, p2i(obj()), obj->klass()->external_name())); 1996 } 1997 1998 JVMCIObject result = JVMCIENV->get_object_constant(value); 1999 return JVMCIENV->get_jobject(result); 2000 } 2001 } 2002 2003 default: 2004 ShouldNotReachHere(); 2005 } 2006 JVMCIObject result = JVMCIENV->call_JavaConstant_forPrimitive(kind, value, JVMCI_CHECK_NULL); 2007 return JVMCIENV->get_jobject(result); 2008 C2V_END 2009 2010 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object)) 2011 if (object == NULL || holder == NULL) { 2012 JVMCI_THROW_0(NullPointerException); 2013 } 2014 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0); 2015 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder)); 2016 return obj->is_a(klass); 2017 C2V_END 2018 2019 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder)) 2020 if (holder == NULL || otherHolder == NULL) { 2021 JVMCI_THROW_0(NullPointerException); 2022 } 2023 Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder)); 2024 Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder)); 2025 return otherKlass->is_subtype_of(klass); 2026 C2V_END 2027 2028 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder)) 2029 if (holder == NULL) { 2030 JVMCI_THROW_0(NullPointerException); 2031 } 2032 InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder))); 2033 if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) { 2034 return true; 2035 } 2036 return false; 2037 C2V_END 2038 2039 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object)) 2040 if (object == NULL) { 2041 JVMCI_THROW_0(NullPointerException); 2042 } 2043 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2044 if (java_lang_Class::is_instance(obj())) { 2045 if (java_lang_Class::is_primitive(obj())) { 2046 JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj())); 2047 return JVMCIENV->get_jobject(type); 2048 } 2049 Klass* klass = java_lang_Class::as_Klass(obj()); 2050 JVMCIKlassHandle klass_handle(THREAD); 2051 klass_handle = klass; 2052 JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL); 2053 return JVMCIENV->get_jobject(type); 2054 } 2055 return NULL; 2056 C2V_END 2057 2058 2059 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object)) 2060 if (object == NULL) { 2061 JVMCI_THROW_0(NullPointerException); 2062 } 2063 Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL); 2064 const char* str = java_lang_String::as_utf8_string(obj()); 2065 JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL); 2066 return JVMCIENV->get_jobject(result); 2067 C2V_END 2068 2069 2070 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle)) 2071 if (x == NULL || y == NULL) { 2072 JVMCI_THROW_0(NullPointerException); 2073 } 2074 return JVMCIENV->resolve_handle(xHandle) == JVMCIENV->resolve_handle(yHandle); 2075 C2V_END 2076 2077 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object)) 2078 if (object == NULL) { 2079 JVMCI_THROW_0(NullPointerException); 2080 } 2081 JVMCIObject base_object = JVMCIENV->wrap(object); 2082 Handle mirror; 2083 if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) { 2084 mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror()); 2085 } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) { 2086 mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL); 2087 } else { 2088 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2089 err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object))); 2090 } 2091 JVMCIObject result = JVMCIENV->get_object_constant(mirror()); 2092 return JVMCIENV->get_jobject(result); 2093 C2V_END 2094 2095 2096 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x)) 2097 if (x == NULL) { 2098 JVMCI_THROW_0(NullPointerException); 2099 } 2100 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0); 2101 if (xobj->klass()->is_array_klass()) { 2102 return arrayOop(xobj())->length(); 2103 } 2104 return -1; 2105 C2V_END 2106 2107 2108 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index)) 2109 if (x == NULL) { 2110 JVMCI_THROW_0(NullPointerException); 2111 } 2112 Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL); 2113 if (xobj->klass()->is_array_klass()) { 2114 arrayOop array = arrayOop(xobj()); 2115 BasicType element_type = ArrayKlass::cast(array->klass())->element_type(); 2116 if (index < 0 || index >= array->length()) { 2117 return NULL; 2118 } 2119 JVMCIObject result; 2120 2121 if (element_type == T_OBJECT) { 2122 result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index)); 2123 if (result.is_null()) { 2124 result = JVMCIENV->get_JavaConstant_NULL_POINTER(); 2125 } 2126 } else { 2127 jvalue value; 2128 switch (element_type) { 2129 case T_DOUBLE: value.d = typeArrayOop(xobj())->double_at(index); break; 2130 case T_FLOAT: value.f = typeArrayOop(xobj())->float_at(index); break; 2131 case T_LONG: value.j = typeArrayOop(xobj())->long_at(index); break; 2132 case T_INT: value.i = typeArrayOop(xobj())->int_at(index); break; 2133 case T_SHORT: value.s = typeArrayOop(xobj())->short_at(index); break; 2134 case T_CHAR: value.c = typeArrayOop(xobj())->char_at(index); break; 2135 case T_BYTE: value.b = typeArrayOop(xobj())->byte_at(index); break; 2136 case T_BOOLEAN: value.z = typeArrayOop(xobj())->byte_at(index) & 1; break; 2137 default: ShouldNotReachHere(); 2138 } 2139 result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL); 2140 } 2141 assert(!result.is_null(), "must have a value"); 2142 return JVMCIENV->get_jobject(result); 2143 } 2144 return NULL;; 2145 C2V_END 2146 2147 2148 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind)) 2149 if (kind == NULL) { 2150 JVMCI_THROW_0(NullPointerException); 2151 } 2152 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0); 2153 return arrayOopDesc::header_size(type) * HeapWordSize; 2154 C2V_END 2155 2156 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind)) 2157 if (kind == NULL) { 2158 JVMCI_THROW_0(NullPointerException); 2159 } 2160 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0); 2161 return type2aelembytes(type); 2162 C2V_END 2163 2164 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong h)) 2165 jobject handle = (jobject)(address)h; 2166 if (handle != NULL) { 2167 JVMCIENV->runtime()->destroy_global(handle); 2168 } 2169 } 2170 2171 static void requireJVMCINativeLibrary(JVMCI_TRAPS) { 2172 if (!UseJVMCINativeLibrary) { 2173 JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)"); 2174 } 2175 } 2176 2177 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror)) 2178 requireJVMCINativeLibrary(JVMCI_CHECK_NULL); 2179 requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL); 2180 char* sl_path; 2181 void* sl_handle; 2182 JVMCIRuntime* runtime = JVMCI::compiler_runtime(); 2183 { 2184 // Ensure the JVMCI shared library runtime is initialized. 2185 JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__); 2186 JVMCIEnv* peerEnv = &__peer_jvmci_env__; 2187 HandleMark hm(THREAD); 2188 JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv); 2189 if (peerEnv->has_pending_exception()) { 2190 peerEnv->describe_pending_exception(true); 2191 } 2192 sl_handle = JVMCI::get_shared_library(sl_path, false); 2193 if (sl_handle == NULL) { 2194 JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id())); 2195 } 2196 } 2197 2198 if (mirror == NULL) { 2199 JVMCI_THROW_0(NullPointerException); 2200 } 2201 Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror)); 2202 if (klass == NULL || !klass->is_instance_klass()) { 2203 JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type"); 2204 } 2205 2206 InstanceKlass* iklass = InstanceKlass::cast(klass); 2207 for (int i = 0; i < iklass->methods()->length(); i++) { 2208 methodHandle method(THREAD, iklass->methods()->at(i)); 2209 if (method->is_native()) { 2210 2211 // Compute argument size 2212 int args_size = 1 // JNIEnv 2213 + (method->is_static() ? 1 : 0) // class for static methods 2214 + method->size_of_parameters(); // actual parameters 2215 2216 // 1) Try JNI short style 2217 stringStream st; 2218 char* pure_name = NativeLookup::pure_jni_name(method); 2219 guarantee(pure_name != NULL, "Illegal native method name encountered"); 2220 os::print_jni_name_prefix_on(&st, args_size); 2221 st.print_raw(pure_name); 2222 os::print_jni_name_suffix_on(&st, args_size); 2223 char* jni_name = st.as_string(); 2224 2225 address entry = (address) os::dll_lookup(sl_handle, jni_name); 2226 if (entry == NULL) { 2227 // 2) Try JNI long style 2228 st.reset(); 2229 char* long_name = NativeLookup::long_jni_name(method); 2230 guarantee(long_name != NULL, "Illegal native method name encountered"); 2231 os::print_jni_name_prefix_on(&st, args_size); 2232 st.print_raw(pure_name); 2233 st.print_raw(long_name); 2234 os::print_jni_name_suffix_on(&st, args_size); 2235 char* jni_long_name = st.as_string(); 2236 entry = (address) os::dll_lookup(sl_handle, jni_long_name); 2237 if (entry == NULL) { 2238 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]", 2239 method->name_and_sig_as_C_string(), 2240 jni_name, jni_long_name, sl_path)); 2241 } 2242 } 2243 2244 if (method->has_native_function() && entry != method->native_function()) { 2245 JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]", 2246 method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry))); 2247 } 2248 method->set_native_function(entry, Method::native_bind_event_is_interesting); 2249 log_debug(jni, resolve)("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT, 2250 method->method_holder()->external_name(), 2251 method->name()->as_C_string(), 2252 p2i((void*) entry)); 2253 } 2254 } 2255 2256 typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0); 2257 jlongArray info = (jlongArray) JNIHandles::make_local(THREAD, info_oop); 2258 runtime->init_JavaVM_info(info, JVMCI_CHECK_0); 2259 return info; 2260 } 2261 2262 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm)) 2263 if (thread == NULL) { 2264 // Called from unattached JVMCI shared library thread 2265 return false; 2266 } 2267 JVMCITraceMark jtm("isCurrentThreadAttached"); 2268 if (thread->jni_environment() == env) { 2269 C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject)) 2270 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2271 JVMCIRuntime* runtime = JVMCI::compiler_runtime(); 2272 if (runtime == NULL || !runtime->has_shared_library_javavm()) { 2273 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached"); 2274 } 2275 JNIEnv* peerEnv; 2276 return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK; 2277 } 2278 return true; 2279 C2V_END 2280 2281 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm)) 2282 if (thread == NULL) { 2283 // Called from unattached JVMCI shared library thread 2284 return 0L; 2285 } 2286 JVMCITraceMark jtm("getCurrentJavaThread"); 2287 return (jlong) p2i(thread); 2288 C2V_END 2289 2290 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jbyteArray name, jboolean as_daemon)) 2291 if (thread == NULL) { 2292 // Called from unattached JVMCI shared library thread 2293 guarantee(name != NULL, "libjvmci caller must pass non-null name"); 2294 2295 extern struct JavaVM_ main_vm; 2296 JNIEnv* hotspotEnv; 2297 2298 int name_len = env->GetArrayLength(name); 2299 char name_buf[64]; // Cannot use Resource heap as it requires a current thread 2300 int to_copy = MIN2(name_len, (int) sizeof(name_buf) - 1); 2301 env->GetByteArrayRegion(name, 0, to_copy, (jbyte*) name_buf); 2302 name_buf[to_copy] = '\0'; 2303 JavaVMAttachArgs attach_args; 2304 attach_args.version = JNI_VERSION_1_2; 2305 attach_args.name = name_buf; 2306 attach_args.group = NULL; 2307 jint res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**) &hotspotEnv, &attach_args) : 2308 main_vm.AttachCurrentThread((void**) &hotspotEnv, &attach_args); 2309 if (res != JNI_OK) { 2310 JNI_THROW_("attachCurrentThread", InternalError, err_msg("Trying to attach thread returned %d", res), false); 2311 } 2312 return true; 2313 } 2314 JVMCITraceMark jtm("attachCurrentThread"); 2315 if (thread->jni_environment() == env) { 2316 // Called from HotSpot 2317 C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean)) 2318 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2319 JVMCIRuntime* runtime = JVMCI::compiler_runtime(); 2320 if (runtime == NULL || !runtime->has_shared_library_javavm()) { 2321 JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in attachCurrentThread"); 2322 } 2323 2324 JavaVMAttachArgs attach_args; 2325 attach_args.version = JNI_VERSION_1_2; 2326 attach_args.name = const_cast<char*>(thread->name()); 2327 attach_args.group = NULL; 2328 JNIEnv* peerJNIEnv; 2329 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) { 2330 return false; 2331 } 2332 jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) : 2333 runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args); 2334 2335 if (res == JNI_OK) { 2336 guarantee(peerJNIEnv != NULL, "must be"); 2337 JVMCI_event_1("attached to JavaVM for JVMCI runtime %d", runtime->id()); 2338 return true; 2339 } 2340 JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name)); 2341 } 2342 // Called from JVMCI shared library 2343 return false; 2344 C2V_END 2345 2346 C2V_VMENTRY_PREFIX(void, detachCurrentThread, (JNIEnv* env, jobject c2vm)) 2347 if (thread == NULL) { 2348 // Called from unattached JVMCI shared library thread 2349 JNI_THROW("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread"); 2350 } 2351 JVMCITraceMark jtm("detachCurrentThread"); 2352 if (thread->jni_environment() == env) { 2353 // Called from HotSpot 2354 C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject)) 2355 requireJVMCINativeLibrary(JVMCI_CHECK); 2356 requireInHotSpot("detachCurrentThread", JVMCI_CHECK); 2357 JVMCIRuntime* runtime = JVMCI::compiler_runtime(); 2358 if (runtime == NULL || !runtime->has_shared_library_javavm()) { 2359 JVMCI_THROW_MSG(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread"); 2360 } 2361 JNIEnv* peerJNIEnv; 2362 if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) != JNI_OK) { 2363 JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name())); 2364 } 2365 jint res = runtime->DetachCurrentThread(thread); 2366 if (res != JNI_OK) { 2367 JVMCI_THROW_MSG(InternalError, err_msg("Error %d while attaching %s", res, thread->name())); 2368 } 2369 } else { 2370 // Called from attached JVMCI shared library thread 2371 extern struct JavaVM_ main_vm; 2372 jint res = main_vm.DetachCurrentThread(); 2373 if (res != JNI_OK) { 2374 JNI_THROW("detachCurrentThread", InternalError, "Cannot detach non-attached thread"); 2375 } 2376 } 2377 C2V_END 2378 2379 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle, jboolean callPostTranslation)) 2380 requireJVMCINativeLibrary(JVMCI_CHECK_0); 2381 if (obj_handle == NULL) { 2382 return 0L; 2383 } 2384 JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__); 2385 JVMCIEnv* peerEnv = &__peer_jvmci_env__; 2386 JVMCIEnv* thisEnv = JVMCIENV; 2387 2388 JVMCIObject obj = thisEnv->wrap(obj_handle); 2389 JVMCIObject result; 2390 if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) { 2391 methodHandle method(THREAD, thisEnv->asMethod(obj)); 2392 result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0); 2393 } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) { 2394 Klass* klass = thisEnv->asKlass(obj); 2395 JVMCIKlassHandle klass_handle(THREAD); 2396 klass_handle = klass; 2397 result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0); 2398 } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) { 2399 BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0); 2400 result = peerEnv->get_jvmci_primitive_type(type); 2401 } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) || 2402 thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) { 2403 Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0); 2404 result = peerEnv->get_object_constant(constant()); 2405 } else if (thisEnv->isa_HotSpotNmethod(obj)) { 2406 nmethodLocker locker; 2407 nmethod* nm = JVMCIENV->get_nmethod(obj, locker); 2408 if (nm != NULL) { 2409 JVMCINMethodData* data = nm->jvmci_nmethod_data(); 2410 if (data != NULL) { 2411 if (peerEnv->is_hotspot()) { 2412 // Only the mirror in the HotSpot heap is accessible 2413 // through JVMCINMethodData 2414 oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true); 2415 if (nmethod_mirror != NULL) { 2416 result = HotSpotJVMCI::wrap(nmethod_mirror); 2417 } 2418 } 2419 } 2420 } 2421 if (result.is_null()) { 2422 JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj); 2423 methodHandle mh(THREAD, thisEnv->asMethod(methodObject)); 2424 jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj); 2425 jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj); 2426 JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj); 2427 const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string); 2428 // Create a new HotSpotNmethod instance in the peer runtime 2429 result = peerEnv->new_HotSpotNmethod(mh, cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0); 2430 if (result.is_null()) { 2431 // exception occurred (e.g. OOME) creating a new HotSpotNmethod 2432 } else if (nm == NULL) { 2433 // nmethod must have been unloaded 2434 } else { 2435 // Link the new HotSpotNmethod to the nmethod 2436 peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0); 2437 // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime. 2438 if (peerEnv->is_hotspot()) { 2439 JVMCINMethodData* data = nm->jvmci_nmethod_data(); 2440 if (data == NULL) { 2441 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod"); 2442 } 2443 if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) { 2444 JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod"); 2445 } 2446 oop nmethod_mirror = HotSpotJVMCI::resolve(result); 2447 data->set_nmethod_mirror(nm, nmethod_mirror); 2448 } 2449 } 2450 } 2451 } else { 2452 JVMCI_THROW_MSG_0(IllegalArgumentException, 2453 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj))); 2454 } 2455 if (callPostTranslation) { 2456 peerEnv->call_HotSpotJVMCIRuntime_postTranslation(result, JVMCI_CHECK_0); 2457 } 2458 // Propagate any exception that occurred while creating the translated object 2459 if (peerEnv->transfer_pending_exception(thread, thisEnv)) { 2460 return 0L; 2461 } 2462 return (jlong) peerEnv->make_global(result).as_jobject(); 2463 } 2464 2465 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle)) 2466 requireJVMCINativeLibrary(JVMCI_CHECK_NULL); 2467 if (obj_handle == 0L) { 2468 return NULL; 2469 } 2470 jobject global_handle = (jobject) obj_handle; 2471 JVMCIObject global_handle_obj = JVMCIENV->wrap((jobject) obj_handle); 2472 jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject(); 2473 2474 JVMCIENV->destroy_global(global_handle_obj); 2475 return result; 2476 } 2477 2478 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle)) 2479 JVMCIObject code = JVMCIENV->wrap(code_handle); 2480 // Execute this operation for the side effect of updating the InstalledCode state 2481 nmethodLocker locker; 2482 JVMCIENV->get_nmethod(code, locker); 2483 } 2484 2485 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle)) 2486 JVMCIObject code = JVMCIENV->wrap(code_handle); 2487 nmethodLocker locker; 2488 CodeBlob* cb = JVMCIENV->get_code_blob(code, locker); 2489 if (cb == NULL) { 2490 return NULL; 2491 } 2492 int code_size = cb->code_size(); 2493 JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL); 2494 JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size); 2495 return JVMCIENV->get_jbyteArray(result); 2496 } 2497 2498 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method)) 2499 requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL); 2500 methodHandle m(THREAD, JVMCIENV->asMethod(jvmci_method)); 2501 oop executable; 2502 if (m->is_class_initializer()) { 2503 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2504 "Cannot create java.lang.reflect.Method for class initializer"); 2505 } 2506 else if (m->is_object_constructor() || m->is_static_init_factory()) { 2507 executable = Reflection::new_constructor(m, CHECK_NULL); 2508 } else { 2509 executable = Reflection::new_method(m, false, CHECK_NULL); 2510 } 2511 return JNIHandles::make_local(THREAD, executable); 2512 } 2513 2514 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index)) 2515 requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL); 2516 Klass* klass = JVMCIENV->asKlass(jvmci_type); 2517 if (!klass->is_instance_klass()) { 2518 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2519 err_msg("Expected non-primitive type, got %s", klass->external_name())); 2520 } 2521 InstanceKlass* iklass = InstanceKlass::cast(klass); 2522 Array<u2>* fields = iklass->fields(); 2523 if (index < 0 ||index > fields->length()) { 2524 JVMCI_THROW_MSG_NULL(IllegalArgumentException, 2525 err_msg("Field index %d out of bounds for %s", index, klass->external_name())); 2526 } 2527 fieldDescriptor fd(iklass, index); 2528 oop reflected = Reflection::new_field(&fd, CHECK_NULL); 2529 return JNIHandles::make_local(THREAD, reflected); 2530 } 2531 2532 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current)) 2533 FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address); 2534 int result_length = 0; 2535 for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) { 2536 result_length++; 2537 } 2538 int current_length = 0; 2539 JVMCIObjectArray current_array = NULL; 2540 if (current != NULL) { 2541 current_array = JVMCIENV->wrap(current); 2542 current_length = JVMCIENV->get_length(current_array); 2543 if (current_length == result_length) { 2544 // No new failures 2545 return current; 2546 } 2547 } 2548 JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL); 2549 int result_index = 0; 2550 for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) { 2551 assert(fs != NULL, "npe"); 2552 JVMCIPrimitiveArray entry; 2553 if (result_index < current_length) { 2554 entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index); 2555 } else { 2556 entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL); 2557 JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len()); 2558 } 2559 JVMCIENV->put_object_at(result, result_index++, entry); 2560 } 2561 return JVMCIENV->get_jobjectArray(result); 2562 } 2563 2564 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method)) 2565 methodHandle method(THREAD, JVMCIENV->asMethod(jvmci_method)); 2566 MethodData* method_data = method->method_data(); 2567 if (method_data == NULL) { 2568 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); 2569 method_data = MethodData::allocate(loader_data, method, CHECK_0); 2570 method->set_method_data(method_data); 2571 } 2572 return (jlong) method_data->get_failed_speculations_address(); 2573 } 2574 2575 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address)) 2576 FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address); 2577 } 2578 2579 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj)) 2580 JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj); 2581 int speculation_len = JVMCIENV->get_length(speculation_handle); 2582 char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len); 2583 JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len); 2584 return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len); 2585 } 2586 2587 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status)) 2588 JavaValue result(T_VOID); 2589 JavaCallArguments jargs(1); 2590 jargs.push_int(status); 2591 JavaCalls::call_static(&result, 2592 vmClasses::System_klass(), 2593 vmSymbols::exit_method_name(), 2594 vmSymbols::int_void_signature(), 2595 &jargs, 2596 CHECK); 2597 } 2598 2599 C2V_VMENTRY_0(jlong, ticksNow, (JNIEnv* env, jobject)) 2600 return CompilerEvent::ticksNow(); 2601 } 2602 2603 C2V_VMENTRY_0(jint, registerCompilerPhase, (JNIEnv* env, jobject, jstring jphase_name)) 2604 #if INCLUDE_JFR 2605 JVMCIObject phase_name = JVMCIENV->wrap(jphase_name); 2606 const char *name = JVMCIENV->as_utf8_string(phase_name); 2607 return CompilerEvent::PhaseEvent::get_phase_id(name, true, true, true); 2608 #else 2609 return -1; 2610 #endif // !INCLUDE_JFR 2611 } 2612 2613 C2V_VMENTRY(void, notifyCompilerPhaseEvent, (JNIEnv* env, jobject, jlong startTime, jint phase, jint compileId, jint level)) 2614 EventCompilerPhase event; 2615 if (event.should_commit()) { 2616 CompilerEvent::PhaseEvent::post(event, startTime, phase, compileId, level); 2617 } 2618 } 2619 2620 C2V_VMENTRY(void, notifyCompilerInliningEvent, (JNIEnv* env, jobject, jint compileId, jobject caller, jobject callee, jboolean succeeded, jstring jmessage, jint bci)) 2621 EventCompilerInlining event; 2622 if (event.should_commit()) { 2623 Method* caller_method = JVMCIENV->asMethod(caller); 2624 Method* callee_method = JVMCIENV->asMethod(callee); 2625 JVMCIObject message = JVMCIENV->wrap(jmessage); 2626 CompilerEvent::InlineEvent::post(event, compileId, caller_method, callee_method, succeeded, JVMCIENV->as_utf8_string(message), bci); 2627 } 2628 } 2629 2630 C2V_VMENTRY(void, setThreadLocalObject, (JNIEnv* env, jobject, jint id, jobject value)) 2631 requireInHotSpot("setThreadLocalObject", JVMCI_CHECK); 2632 if (id == 0) { 2633 thread->set_jvmci_reserved_oop0(JNIHandles::resolve(value)); 2634 return; 2635 } 2636 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 2637 err_msg("%d is not a valid thread local id", id)); 2638 } 2639 2640 C2V_VMENTRY_NULL(jobject, getThreadLocalObject, (JNIEnv* env, jobject, jint id)) 2641 requireInHotSpot("getThreadLocalObject", JVMCI_CHECK_NULL); 2642 if (id == 0) { 2643 return JNIHandles::make_local(thread->get_jvmci_reserved_oop0()); 2644 } 2645 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 2646 err_msg("%d is not a valid thread local id", id)); 2647 } 2648 2649 C2V_VMENTRY(void, setThreadLocalLong, (JNIEnv* env, jobject, jint id, jlong value)) 2650 requireInHotSpot("setThreadLocalLong", JVMCI_CHECK); 2651 if (id == 0) { 2652 thread->set_jvmci_reserved0(value); 2653 } else if (id == 1) { 2654 thread->set_jvmci_reserved1(value); 2655 } else { 2656 THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(), 2657 err_msg("%d is not a valid thread local id", id)); 2658 } 2659 } 2660 2661 C2V_VMENTRY_0(jlong, getThreadLocalLong, (JNIEnv* env, jobject, jint id)) 2662 requireInHotSpot("getThreadLocalLong", JVMCI_CHECK_0); 2663 if (id == 0) { 2664 return thread->get_jvmci_reserved0(); 2665 } else if (id == 1) { 2666 return thread->get_jvmci_reserved1(); 2667 } else { 2668 THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), 2669 err_msg("%d is not a valid thread local id", id)); 2670 } 2671 } 2672 2673 #define CC (char*) /*cast a literal from (const char*)*/ 2674 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f)) 2675 2676 #define STRING "Ljava/lang/String;" 2677 #define OBJECT "Ljava/lang/Object;" 2678 #define CLASS "Ljava/lang/Class;" 2679 #define OBJECTCONSTANT "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;" 2680 #define HANDLECONSTANT "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;" 2681 #define EXECUTABLE "Ljava/lang/reflect/Executable;" 2682 #define STACK_TRACE_ELEMENT "Ljava/lang/StackTraceElement;" 2683 #define INSTALLED_CODE "Ljdk/vm/ci/code/InstalledCode;" 2684 #define TARGET_DESCRIPTION "Ljdk/vm/ci/code/TargetDescription;" 2685 #define BYTECODE_FRAME "Ljdk/vm/ci/code/BytecodeFrame;" 2686 #define JAVACONSTANT "Ljdk/vm/ci/meta/JavaConstant;" 2687 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;" 2688 #define RESOLVED_METHOD "Ljdk/vm/ci/meta/ResolvedJavaMethod;" 2689 #define HS_RESOLVED_METHOD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;" 2690 #define HS_RESOLVED_KLASS "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;" 2691 #define HS_RESOLVED_TYPE "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;" 2692 #define HS_RESOLVED_FIELD "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;" 2693 #define HS_INSTALLED_CODE "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;" 2694 #define HS_NMETHOD "Ljdk/vm/ci/hotspot/HotSpotNmethod;" 2695 #define HS_CONSTANT_POOL "Ljdk/vm/ci/hotspot/HotSpotConstantPool;" 2696 #define HS_COMPILED_CODE "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;" 2697 #define HS_CONFIG "Ljdk/vm/ci/hotspot/HotSpotVMConfig;" 2698 #define HS_METADATA "Ljdk/vm/ci/hotspot/HotSpotMetaData;" 2699 #define HS_STACK_FRAME_REF "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;" 2700 #define HS_SPECULATION_LOG "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;" 2701 #define METASPACE_OBJECT "Ljdk/vm/ci/hotspot/MetaspaceObject;" 2702 #define REFLECTION_EXECUTABLE "Ljava/lang/reflect/Executable;" 2703 #define REFLECTION_FIELD "Ljava/lang/reflect/Field;" 2704 #define METASPACE_METHOD_DATA "J" 2705 2706 JNINativeMethod CompilerToVM::methods[] = { 2707 {CC "getBytecode", CC "(" HS_RESOLVED_METHOD ")[B", FN_PTR(getBytecode)}, 2708 {CC "getExceptionTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getExceptionTableStart)}, 2709 {CC "getExceptionTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getExceptionTableLength)}, 2710 {CC "findUniqueConcreteMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD, FN_PTR(findUniqueConcreteMethod)}, 2711 {CC "getImplementor", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS, FN_PTR(getImplementor)}, 2712 {CC "getStackTraceElement", CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT, FN_PTR(getStackTraceElement)}, 2713 {CC "methodIsIgnoredBySecurityStackWalk", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(methodIsIgnoredBySecurityStackWalk)}, 2714 {CC "setNotInlinableOrCompilable", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(setNotInlinableOrCompilable)}, 2715 {CC "isCompilable", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(isCompilable)}, 2716 {CC "hasNeverInlineDirective", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(hasNeverInlineDirective)}, 2717 {CC "shouldInlineMethod", CC "(" HS_RESOLVED_METHOD ")Z", FN_PTR(shouldInlineMethod)}, 2718 {CC "lookupType", CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE, FN_PTR(lookupType)}, 2719 {CC "getArrayType", CC "(" HS_RESOLVED_TYPE ")" HS_RESOLVED_KLASS, FN_PTR(getArrayType)}, 2720 {CC "lookupClass", CC "(" CLASS ")" HS_RESOLVED_TYPE, FN_PTR(lookupClass)}, 2721 {CC "lookupNameInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupNameInPool)}, 2722 {CC "lookupNameAndTypeRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupNameAndTypeRefIndexInPool)}, 2723 {CC "lookupSignatureInPool", CC "(" HS_CONSTANT_POOL "I)" STRING, FN_PTR(lookupSignatureInPool)}, 2724 {CC "lookupKlassRefIndexInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(lookupKlassRefIndexInPool)}, 2725 {CC "lookupKlassInPool", CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;", FN_PTR(lookupKlassInPool)}, 2726 {CC "lookupAppendixInPool", CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT, FN_PTR(lookupAppendixInPool)}, 2727 {CC "lookupMethodInPool", CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD, FN_PTR(lookupMethodInPool)}, 2728 {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(constantPoolRemapInstructionOperandFromCache)}, 2729 {CC "resolvePossiblyCachedConstantInPool", CC "(" HS_CONSTANT_POOL "I)" JAVACONSTANT, FN_PTR(resolvePossiblyCachedConstantInPool)}, 2730 {CC "resolveTypeInPool", CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS, FN_PTR(resolveTypeInPool)}, 2731 {CC "resolveFieldInPool", CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS, FN_PTR(resolveFieldInPool)}, 2732 {CC "resolveInvokeDynamicInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeDynamicInPool)}, 2733 {CC "resolveInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)V", FN_PTR(resolveInvokeHandleInPool)}, 2734 {CC "isResolvedInvokeHandleInPool", CC "(" HS_CONSTANT_POOL "I)I", FN_PTR(isResolvedInvokeHandleInPool)}, 2735 {CC "resolveMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)}, 2736 {CC "getSignaturePolymorphicHolders", CC "()[" STRING, FN_PTR(getSignaturePolymorphicHolders)}, 2737 {CC "getVtableIndexForInterfaceMethod", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I", FN_PTR(getVtableIndexForInterfaceMethod)}, 2738 {CC "getClassInitializer", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(getClassInitializer)}, 2739 {CC "hasFinalizableSubclass", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(hasFinalizableSubclass)}, 2740 {CC "getMaxCallTargetOffset", CC "(J)J", FN_PTR(getMaxCallTargetOffset)}, 2741 {CC "asResolvedJavaMethod", CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD, FN_PTR(asResolvedJavaMethod)}, 2742 {CC "getResolvedJavaMethod", CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD, FN_PTR(getResolvedJavaMethod)}, 2743 {CC "getConstantPool", CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL, FN_PTR(getConstantPool)}, 2744 {CC "getResolvedJavaType0", CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS, FN_PTR(getResolvedJavaType0)}, 2745 {CC "readConfiguration", CC "()[" OBJECT, FN_PTR(readConfiguration)}, 2746 {CC "installCode", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I", FN_PTR(installCode)}, 2747 {CC "getMetadata", CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I", FN_PTR(getMetadata)}, 2748 {CC "resetCompilationStatistics", CC "()V", FN_PTR(resetCompilationStatistics)}, 2749 {CC "disassembleCodeBlob", CC "(" INSTALLED_CODE ")" STRING, FN_PTR(disassembleCodeBlob)}, 2750 {CC "executeHotSpotNmethod", CC "([" OBJECT HS_NMETHOD ")" OBJECT, FN_PTR(executeHotSpotNmethod)}, 2751 {CC "getLineNumberTable", CC "(" HS_RESOLVED_METHOD ")[J", FN_PTR(getLineNumberTable)}, 2752 {CC "getLocalVariableTableStart", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getLocalVariableTableStart)}, 2753 {CC "getLocalVariableTableLength", CC "(" HS_RESOLVED_METHOD ")I", FN_PTR(getLocalVariableTableLength)}, 2754 {CC "reprofile", CC "(" HS_RESOLVED_METHOD ")V", FN_PTR(reprofile)}, 2755 {CC "invalidateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(invalidateHotSpotNmethod)}, 2756 {CC "collectCounters", CC "()[J", FN_PTR(collectCounters)}, 2757 {CC "getCountersSize", CC "()I", FN_PTR(getCountersSize)}, 2758 {CC "setCountersSize", CC "(I)Z", FN_PTR(setCountersSize)}, 2759 {CC "allocateCompileId", CC "(" HS_RESOLVED_METHOD "I)I", FN_PTR(allocateCompileId)}, 2760 {CC "isMature", CC "(" METASPACE_METHOD_DATA ")Z", FN_PTR(isMature)}, 2761 {CC "hasCompiledCodeForOSR", CC "(" HS_RESOLVED_METHOD "II)Z", FN_PTR(hasCompiledCodeForOSR)}, 2762 {CC "getSymbol", CC "(J)" STRING, FN_PTR(getSymbol)}, 2763 {CC "iterateFrames", CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT, FN_PTR(iterateFrames)}, 2764 {CC "materializeVirtualObjects", CC "(" HS_STACK_FRAME_REF "Z)V", FN_PTR(materializeVirtualObjects)}, 2765 {CC "shouldDebugNonSafepoints", CC "()Z", FN_PTR(shouldDebugNonSafepoints)}, 2766 {CC "writeDebugOutput", CC "(JIZ)V", FN_PTR(writeDebugOutput)}, 2767 {CC "flushDebugOutput", CC "()V", FN_PTR(flushDebugOutput)}, 2768 {CC "methodDataProfileDataSize", CC "(JI)I", FN_PTR(methodDataProfileDataSize)}, 2769 {CC "getFingerprint", CC "(J)J", FN_PTR(getFingerprint)}, 2770 {CC "interpreterFrameSize", CC "(" BYTECODE_FRAME ")I", FN_PTR(interpreterFrameSize)}, 2771 {CC "compileToBytecode", CC "(" OBJECTCONSTANT ")V", FN_PTR(compileToBytecode)}, 2772 {CC "getFlagValue", CC "(" STRING ")" OBJECT, FN_PTR(getFlagValue)}, 2773 {CC "getInterfaces", CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS, FN_PTR(getInterfaces)}, 2774 {CC "getComponentType", CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE, FN_PTR(getComponentType)}, 2775 {CC "ensureInitialized", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureInitialized)}, 2776 {CC "ensureLinked", CC "(" HS_RESOLVED_KLASS ")V", FN_PTR(ensureLinked)}, 2777 {CC "getIdentityHashCode", CC "(" OBJECTCONSTANT ")I", FN_PTR(getIdentityHashCode)}, 2778 {CC "isInternedString", CC "(" OBJECTCONSTANT ")Z", FN_PTR(isInternedString)}, 2779 {CC "unboxPrimitive", CC "(" OBJECTCONSTANT ")" OBJECT, FN_PTR(unboxPrimitive)}, 2780 {CC "boxPrimitive", CC "(" OBJECT ")" OBJECTCONSTANT, FN_PTR(boxPrimitive)}, 2781 {CC "getDeclaredConstructors", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredConstructors)}, 2782 {CC "getDeclaredMethods", CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD, FN_PTR(getDeclaredMethods)}, 2783 {CC "readFieldValue", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS "JLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)}, 2784 {CC "readFieldValue", CC "(" OBJECTCONSTANT HS_RESOLVED_KLASS "JLjdk/vm/ci/meta/JavaKind;)" JAVACONSTANT, FN_PTR(readFieldValue)}, 2785 {CC "isInstance", CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z", FN_PTR(isInstance)}, 2786 {CC "isAssignableFrom", CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z", FN_PTR(isAssignableFrom)}, 2787 {CC "isTrustedForIntrinsics", CC "(" HS_RESOLVED_KLASS ")Z", FN_PTR(isTrustedForIntrinsics)}, 2788 {CC "asJavaType", CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE, FN_PTR(asJavaType)}, 2789 {CC "asString", CC "(" OBJECTCONSTANT ")" STRING, FN_PTR(asString)}, 2790 {CC "equals", CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z", FN_PTR(equals)}, 2791 {CC "getJavaMirror", CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT, FN_PTR(getJavaMirror)}, 2792 {CC "getArrayLength", CC "(" OBJECTCONSTANT ")I", FN_PTR(getArrayLength)}, 2793 {CC "readArrayElement", CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;", FN_PTR(readArrayElement)}, 2794 {CC "arrayBaseOffset", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayBaseOffset)}, 2795 {CC "arrayIndexScale", CC "(Ljdk/vm/ci/meta/JavaKind;)I", FN_PTR(arrayIndexScale)}, 2796 {CC "deleteGlobalHandle", CC "(J)V", FN_PTR(deleteGlobalHandle)}, 2797 {CC "registerNativeMethods", CC "(" CLASS ")[J", FN_PTR(registerNativeMethods)}, 2798 {CC "isCurrentThreadAttached", CC "()Z", FN_PTR(isCurrentThreadAttached)}, 2799 {CC "getCurrentJavaThread", CC "()J", FN_PTR(getCurrentJavaThread)}, 2800 {CC "attachCurrentThread", CC "([BZ)Z", FN_PTR(attachCurrentThread)}, 2801 {CC "detachCurrentThread", CC "()V", FN_PTR(detachCurrentThread)}, 2802 {CC "translate", CC "(" OBJECT "Z)J", FN_PTR(translate)}, 2803 {CC "unhand", CC "(J)" OBJECT, FN_PTR(unhand)}, 2804 {CC "updateHotSpotNmethod", CC "(" HS_NMETHOD ")V", FN_PTR(updateHotSpotNmethod)}, 2805 {CC "getCode", CC "(" HS_INSTALLED_CODE ")[B", FN_PTR(getCode)}, 2806 {CC "asReflectionExecutable", CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE, FN_PTR(asReflectionExecutable)}, 2807 {CC "asReflectionField", CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD, FN_PTR(asReflectionField)}, 2808 {CC "getFailedSpeculations", CC "(J[[B)[[B", FN_PTR(getFailedSpeculations)}, 2809 {CC "getFailedSpeculationsAddress", CC "(" HS_RESOLVED_METHOD ")J", FN_PTR(getFailedSpeculationsAddress)}, 2810 {CC "releaseFailedSpeculations", CC "(J)V", FN_PTR(releaseFailedSpeculations)}, 2811 {CC "addFailedSpeculation", CC "(J[B)Z", FN_PTR(addFailedSpeculation)}, 2812 {CC "callSystemExit", CC "(I)V", FN_PTR(callSystemExit)}, 2813 {CC "ticksNow", CC "()J", FN_PTR(ticksNow)}, 2814 {CC "getThreadLocalObject", CC "(I)" OBJECT, FN_PTR(getThreadLocalObject)}, 2815 {CC "setThreadLocalObject", CC "(I" OBJECT ")V", FN_PTR(setThreadLocalObject)}, 2816 {CC "getThreadLocalLong", CC "(I)J", FN_PTR(getThreadLocalLong)}, 2817 {CC "setThreadLocalLong", CC "(IJ)V", FN_PTR(setThreadLocalLong)}, 2818 {CC "registerCompilerPhase", CC "(" STRING ")I", FN_PTR(registerCompilerPhase)}, 2819 {CC "notifyCompilerPhaseEvent", CC "(JIII)V", FN_PTR(notifyCompilerPhaseEvent)}, 2820 {CC "notifyCompilerInliningEvent", CC "(I" HS_RESOLVED_METHOD HS_RESOLVED_METHOD "ZLjava/lang/String;I)V", FN_PTR(notifyCompilerInliningEvent)}, 2821 }; 2822 2823 int CompilerToVM::methods_count() { 2824 return sizeof(methods) / sizeof(JNINativeMethod); 2825 }