1 /*
   2  * Copyright (c) 2011, 2018, 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 "code/scopeDesc.hpp"
  30 #include "compiler/compileBroker.hpp"
  31 #include "compiler/disassembler.hpp"
  32 #include "interpreter/linkResolver.hpp"
  33 #include "interpreter/bytecodeStream.hpp"
  34 #include "jvmci/jvmciCompilerToVM.hpp"
  35 #include "jvmci/jvmciCodeInstaller.hpp"
  36 #include "jvmci/jvmciRuntime.hpp"
  37 #include "memory/oopFactory.hpp"
  38 #include "oops/constantPool.inline.hpp"
  39 #include "oops/method.inline.hpp"
  40 #include "oops/objArrayOop.inline.hpp"
  41 #include "oops/typeArrayOop.inline.hpp"
  42 #include "prims/nativeLookup.hpp"
  43 #include "runtime/deoptimization.hpp"
  44 #include "runtime/frame.inline.hpp"
  45 #include "runtime/interfaceSupport.inline.hpp"
  46 #include "runtime/jniHandles.inline.hpp"
  47 #include "runtime/timerTrace.hpp"
  48 #include "runtime/vframe_hp.hpp"
  49 
  50 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
  51   _thread = thread;
  52   _klass = klass;
  53   if (klass != NULL) {
  54     _holder = Handle(_thread, klass->holder_phantom());
  55   }
  56 }
  57 
  58 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
  59   _klass = klass;
  60   if (klass != NULL) {
  61     _holder = Handle(_thread, klass->holder_phantom());
  62   }
  63   return *this;
  64 }
  65 
  66 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
  67   if (!JVMCIENV->is_hotspot()) {
  68     JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
  69   }
  70 }
  71 
  72 void JNIHandleMark::push_jni_handle_block(JavaThread* thread) {
  73   if (thread != NULL) {
  74     // Allocate a new block for JNI handles.
  75     // Inlined code from jni_PushLocalFrame()
  76     JNIHandleBlock* java_handles = thread->active_handles();
  77     JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread);
  78     assert(compile_handles != NULL && java_handles != NULL, "should not be NULL");
  79     compile_handles->set_pop_frame_link(java_handles);
  80     thread->set_active_handles(compile_handles);
  81   }
  82 }
  83 
  84 void JNIHandleMark::pop_jni_handle_block(JavaThread* thread) {
  85   if (thread != NULL) {
  86     // Release our JNI handle block
  87     JNIHandleBlock* compile_handles = thread->active_handles();
  88     JNIHandleBlock* java_handles = compile_handles->pop_frame_link();
  89     thread->set_active_handles(java_handles);
  90     compile_handles->set_pop_frame_link(NULL);
  91     JNIHandleBlock::release_block(compile_handles, thread); // may block
  92   }
  93 }
  94 
  95 class JVMCITraceMark : public StackObj {
  96   const char* _msg;
  97  public:
  98   JVMCITraceMark(const char* msg) {
  99     _msg = msg;
 100     TRACE_jvmci_2("Enter %s", _msg);
 101   }
 102   ~JVMCITraceMark() {
 103     TRACE_jvmci_2(" Exit %s", _msg);
 104   }
 105 };
 106 
 107 
 108 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
 109   assert(_index < _args->length(), "out of bounds");
 110   oop arg=((objArrayOop) (_args))->obj_at(_index++);
 111   assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
 112   return Handle(Thread::current(), arg);
 113 }
 114 
 115 // Bring the JVMCI compiler thread into the VM state.
 116 #define JVMCI_VM_ENTRY_MARK                   \
 117   ThreadInVMfromNative __tiv(thread);         \
 118   ResetNoHandleMark rnhm;                     \
 119   HandleMarkCleaner __hm(thread);             \
 120   Thread* THREAD = thread;                    \
 121   debug_only(VMNativeEntryWrapper __vew;)
 122 
 123 // Native method block that transitions current thread to '_thread_in_vm'.
 124 #define C2V_BLOCK(result_type, name, signature)      \
 125   TRACE_CALL(result_type, jvmci_ ## name signature)  \
 126   JVMCI_VM_ENTRY_MARK;                               \
 127   ResourceMark rm;                                   \
 128   JNI_JVMCIENV(thread, env);
 129 
 130 static JavaThread* get_current_thread(bool allow_null=true) {
 131   Thread* thread = Thread::current_or_null_safe();
 132   if (thread == NULL) {
 133     assert(allow_null, "npe");
 134     return NULL;
 135   }
 136   assert(thread->is_Java_thread(), "must be");
 137   return (JavaThread*) thread;
 138 }
 139 
 140 // Entry to native method implementation that transitions
 141 // current thread to '_thread_in_vm'.
 142 #define C2V_VMENTRY(result_type, name, signature)        \
 143   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
 144   JavaThread* thread = get_current_thread();             \
 145   if (thread == NULL) {                                  \
 146     env->ThrowNew(JNIJVMCI::InternalError::clazz(),      \
 147         err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
 148     return;                                              \
 149   }                                                      \
 150   JVMCITraceMark jtm("CompilerToVM::" #name);            \
 151   C2V_BLOCK(result_type, name, signature)
 152 
 153 #define C2V_VMENTRY_(result_type, name, signature, result) \
 154   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
 155           JavaThread* thread = get_current_thread();             \
 156           if (thread == NULL) {                                  \
 157     env->ThrowNew(JNIJVMCI::InternalError::clazz(),      \
 158         err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
 159     return result;                                       \
 160   }                                                      \
 161   JVMCITraceMark jtm("CompilerToVM::" #name);            \
 162   C2V_BLOCK(result_type, name, signature)
 163 
 164 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, NULL)
 165 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
 166 
 167 // Entry to native method implementation that does not transition
 168 // current thread to '_thread_in_vm'.
 169 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
 170   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
 171   JavaThread* thread = get_current_thread();
 172 
 173 #define C2V_END }
 174 
 175 #define JNI_THROW(caller, name, msg) 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;                                                                       \
 181   } while (0);
 182 
 183 #define JNI_THROW_(caller, name, msg, result) do {                                \
 184     jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg);               \
 185     if (__throw_res != JNI_OK) {                                                  \
 186       tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
 187     }                                                                             \
 188     return result;                                                                \
 189   } while (0)
 190 
 191 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
 192 
 193 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
 194   jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
 195   return config;
 196 }
 197 
 198 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
 199 #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();
 200 #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();
 201   JVMCIObject name = JVMCIENV->wrap(name_handle);
 202   if (name.is_null()) {
 203     JVMCI_THROW_NULL(NullPointerException);
 204   }
 205   const char* cstring = JVMCIENV->as_utf8_string(name);
 206   JVMFlag* flag = JVMFlag::find_flag(cstring, strlen(cstring), /* allow_locked */ true, /* return_flag */ true);
 207   if (flag == NULL) {
 208     return c2vm;
 209   }
 210   if (flag->is_bool()) {
 211     jvalue prim;
 212     prim.z = flag->get_bool();
 213     JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
 214     return JVMCIENV->get_jobject(box);
 215   } else if (flag->is_ccstr()) {
 216     JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
 217     return JVMCIENV->get_jobject(value);
 218   } else if (flag->is_intx()) {
 219     RETURN_BOXED_LONG(flag->get_intx());
 220   } else if (flag->is_int()) {
 221     RETURN_BOXED_LONG(flag->get_int());
 222   } else if (flag->is_uint()) {
 223     RETURN_BOXED_LONG(flag->get_uint());
 224   } else if (flag->is_uint64_t()) {
 225     RETURN_BOXED_LONG(flag->get_uint64_t());
 226   } else if (flag->is_size_t()) {
 227     RETURN_BOXED_LONG(flag->get_size_t());
 228   } else if (flag->is_uintx()) {
 229     RETURN_BOXED_LONG(flag->get_uintx());
 230   } else if (flag->is_double()) {
 231     RETURN_BOXED_DOUBLE(flag->get_double());
 232   } else {
 233     JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
 234   }
 235 #undef RETURN_BOXED_LONG
 236 #undef RETURN_BOXED_DOUBLE
 237 C2V_END
 238 
 239 C2V_VMENTRY_NULL(jobject, getObjectAtAddress, (JNIEnv* env, jobject c2vm, jlong oop_address))
 240   requireInHotSpot("getObjectAtAddress", JVMCI_CHECK_NULL);
 241   if (oop_address == 0) {
 242     JVMCI_THROW_MSG_NULL(InternalError, "Handle must be non-zero");
 243   }
 244   oop obj = *((oopDesc**) oop_address);
 245   if (obj != NULL) {
 246     obj->verify();
 247   }
 248   return JNIHandles::make_local(obj);
 249 C2V_END
 250 
 251 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, jobject jvmci_method))
 252   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 253 
 254   int code_size = method->code_size();
 255   jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
 256 
 257   guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
 258   // iterate over all bytecodes and replace non-Java bytecodes
 259 
 260   for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
 261     Bytecodes::Code code = s.code();
 262     Bytecodes::Code raw_code = s.raw_code();
 263     int bci = s.bci();
 264     int len = s.instruction_size();
 265 
 266     // Restore original byte code.
 267     reconstituted_code[bci] =  (jbyte) (s.is_wide()? Bytecodes::_wide : code);
 268     if (len > 1) {
 269       memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
 270     }
 271 
 272     if (len > 1) {
 273       // Restore the big-endian constant pool indexes.
 274       // Cf. Rewriter::scan_method
 275       switch (code) {
 276         case Bytecodes::_getstatic:
 277         case Bytecodes::_putstatic:
 278         case Bytecodes::_getfield:
 279         case Bytecodes::_putfield:
 280         case Bytecodes::_invokevirtual:
 281         case Bytecodes::_invokespecial:
 282         case Bytecodes::_invokestatic:
 283         case Bytecodes::_invokeinterface:
 284         case Bytecodes::_invokehandle: {
 285           int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
 286           Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
 287           break;
 288         }
 289 
 290         case Bytecodes::_invokedynamic: {
 291           int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
 292           Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
 293           break;
 294         }
 295 
 296         default:
 297           break;
 298       }
 299 
 300       // Not all ldc byte code are rewritten.
 301       switch (raw_code) {
 302         case Bytecodes::_fast_aldc: {
 303           int cpc_index = reconstituted_code[bci + 1] & 0xff;
 304           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 305           assert(cp_index < method->constants()->length(), "sanity check");
 306           reconstituted_code[bci + 1] = (jbyte) cp_index;
 307           break;
 308         }
 309 
 310         case Bytecodes::_fast_aldc_w: {
 311           int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
 312           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 313           assert(cp_index < method->constants()->length(), "sanity check");
 314           Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
 315           break;
 316         }
 317 
 318         default:
 319           break;
 320       }
 321     }
 322   }
 323 
 324   JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
 325   JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
 326   return JVMCIENV->get_jbyteArray(result);
 327 C2V_END
 328 
 329 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
 330   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 331   return method->exception_table_length();
 332 C2V_END
 333 
 334 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
 335   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 336   if (method->exception_table_length() == 0) {
 337     return 0L;
 338   }
 339   return (jlong) (address) method->exception_table_start();
 340 C2V_END
 341 
 342 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
 343   requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
 344   oop executable = JNIHandles::resolve(executable_handle);
 345   oop mirror = NULL;
 346   int slot = 0;
 347 
 348   if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) {
 349     mirror = java_lang_reflect_Constructor::clazz(executable);
 350     slot = java_lang_reflect_Constructor::slot(executable);
 351   } else {
 352     assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
 353     mirror = java_lang_reflect_Method::clazz(executable);
 354     slot = java_lang_reflect_Method::slot(executable);
 355   }
 356   Klass* holder = java_lang_Class::as_Klass(mirror);
 357   methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
 358   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 359   return JVMCIENV->get_jobject(result);
 360 }
 361 
 362 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
 363   methodHandle method;
 364   JVMCIObject base_object = JVMCIENV->wrap(base);
 365   if (base_object.is_null()) {
 366     method = *((Method**)(offset));
 367   } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
 368     Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
 369     if (obj->is_a(SystemDictionary::ResolvedMethodName_klass())) {
 370       method = (Method*) (intptr_t) obj->long_field(offset);
 371     } else {
 372       JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
 373     }
 374   } else if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
 375     method = JVMCIENV->asMethod(base_object);
 376   }
 377   if (method.is_null()) {
 378     JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
 379   }
 380   assert (method.is_null() || method->is_method(), "invalid read");
 381   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 382   return JVMCIENV->get_jobject(result);
 383 }
 384 
 385 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, jobject object_handle))
 386   constantPoolHandle cp;
 387   JVMCIObject object = JVMCIENV->wrap(object_handle);
 388   if (object.is_null()) {
 389     JVMCI_THROW_NULL(NullPointerException);
 390   }
 391   if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(object)) {
 392     cp = JVMCIENV->asMethod(object)->constMethod()->constants();
 393   } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(object)) {
 394     cp = InstanceKlass::cast(JVMCIENV->asKlass(object))->constants();
 395   } else {
 396     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
 397                 err_msg("Unexpected type: %s", JVMCIENV->klass_name(object)));
 398   }
 399   assert(!cp.is_null(), "npe");
 400 
 401   JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(cp, JVMCI_CHECK_NULL);
 402   return JVMCIENV->get_jobject(result);
 403 }
 404 
 405 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
 406   JVMCIKlassHandle klass(THREAD);
 407   JVMCIObject base_object = JVMCIENV->wrap(base);
 408   jlong base_address = 0;
 409   if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) {
 410     // klass = JVMCIENV->unhandle(base_object)->klass();
 411     if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
 412       Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
 413       klass = base_oop->klass();
 414     } else {
 415       assert(false, "What types are we actually expecting here?");
 416     }
 417   } else if (!compressed) {
 418     if (base_object.is_non_null()) {
 419       if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
 420         base_address = (intptr_t) JVMCIENV->asMethod(base_object);
 421       } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
 422         base_address = (intptr_t) JVMCIENV->asConstantPool(base_object);
 423       } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
 424         base_address = (intptr_t) JVMCIENV->asKlass(base_object);
 425       } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
 426         Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
 427         if (base_oop->is_a(SystemDictionary::Class_klass())) {
 428           base_address = (jlong) (address) base_oop();
 429         }
 430       }
 431       if (base_address == 0) {
 432         JVMCI_THROW_MSG_NULL(IllegalArgumentException,
 433                     err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false"));
 434       }
 435     }
 436     klass = *((Klass**) (intptr_t) (base_address + offset));
 437   } else {
 438     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
 439                 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s",
 440                         base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null",
 441                         offset, compressed ? "true" : "false"));
 442   }
 443   assert (klass == NULL || klass->is_klass(), "invalid read");
 444   JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 445   return JVMCIENV->get_jobject(result);
 446 }
 447 
 448 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
 449   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 450   Klass* holder = JVMCIENV->asKlass(jvmci_type);
 451   if (holder->is_interface()) {
 452     JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
 453   }
 454 
 455   methodHandle ucm;
 456   {
 457     MutexLocker locker(Compile_lock);
 458     ucm = Dependencies::find_unique_concrete_method(holder, method());
 459   }
 460   JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
 461   return JVMCIENV->get_jobject(result);
 462 C2V_END
 463 
 464 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type))
 465   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 466   if (!klass->is_interface()) {
 467     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 468         err_msg("Expected interface type, got %s", klass->external_name()));
 469   }
 470   InstanceKlass* iklass = InstanceKlass::cast(klass);
 471   JVMCIKlassHandle handle(THREAD);
 472   {
 473     // Need Compile_lock around implementor()
 474     MutexLocker locker(Compile_lock);
 475     handle = iklass->implementor();
 476   }
 477   JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
 478   return JVMCIENV->get_jobject(implementor);
 479 C2V_END
 480 
 481 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method))
 482   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 483   return method->is_ignored_by_security_stack_walk();
 484 C2V_END
 485 
 486 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
 487   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 488   constantPoolHandle cp = method->constMethod()->constants();
 489   assert(!cp.is_null(), "npe");
 490   // don't inline method when constant pool contains a CONSTANT_Dynamic
 491   return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
 492 C2V_END
 493 
 494 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method))
 495   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 496   return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
 497 C2V_END
 498 
 499 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method))
 500   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 501   return CompilerOracle::should_inline(method) || method->force_inline();
 502 C2V_END
 503 
 504 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve))
 505   JVMCIObject name = JVMCIENV->wrap(jname);
 506   const char* str = JVMCIENV->as_utf8_string(name);
 507   TempNewSymbol class_name = SymbolTable::new_symbol(str, CHECK_NULL);
 508 
 509   if (class_name->utf8_length() <= 1) {
 510     JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
 511   }
 512 
 513   JVMCIKlassHandle resolved_klass(THREAD);
 514   Klass* accessing_klass = NULL;
 515   Handle class_loader;
 516   Handle protection_domain;
 517   if (accessing_class != NULL) {
 518     accessing_klass = JVMCIENV->asKlass(accessing_class);
 519     class_loader = Handle(THREAD, accessing_klass->class_loader());
 520     protection_domain = Handle(THREAD, accessing_klass->protection_domain());
 521   } else {
 522     // Use the System class loader
 523     class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
 524     JVMCIENV->runtime()->initialize(JVMCIENV);
 525   }
 526 
 527   if (resolve) {
 528     resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
 529     if (resolved_klass == NULL) {
 530       JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
 531     }
 532   } else {
 533     if (class_name->byte_at(0) == 'L' &&
 534       class_name->byte_at(class_name->utf8_length()-1) == ';') {
 535       // This is a name from a signature.  Strip off the trimmings.
 536       // Call recursive to keep scope of strippedsym.
 537       TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
 538                                                           class_name->utf8_length()-2,
 539                                                           CHECK_0);
 540       resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
 541     } else if (FieldType::is_array(class_name)) {
 542       FieldArrayInfo fd;
 543       // dimension and object_key in FieldArrayInfo are assigned as a side-effect
 544       // of this call
 545       BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
 546       if (t == T_OBJECT) {
 547         TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
 548                                                             class_name->utf8_length()-2-fd.dimension(),
 549                                                             CHECK_0);
 550         resolved_klass = SystemDictionary::find(strippedsym,
 551                                                              class_loader,
 552                                                              protection_domain,
 553                                                              CHECK_0);
 554         if (!resolved_klass.is_null()) {
 555           resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
 556         }
 557       } else {
 558         resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(t))->array_klass(fd.dimension(), CHECK_0);
 559       }
 560     } else {
 561       resolved_klass = SystemDictionary::find(class_name, class_loader, protection_domain, CHECK_0);
 562     }
 563   }
 564   JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
 565   return JVMCIENV->get_jobject(result);
 566 C2V_END
 567 
 568 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jobject jvmci_type))
 569   if (jvmci_type == NULL) {
 570     JVMCI_THROW_0(NullPointerException);
 571   }
 572 
 573   JVMCIObject jvmci_type_object = JVMCIENV->wrap(jvmci_type);
 574   JVMCIKlassHandle array_klass(THREAD);
 575   if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(jvmci_type_object)) {
 576     BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(jvmci_type_object), JVMCI_CHECK_0);
 577     if (type == T_VOID) {
 578       return NULL;
 579     }
 580     array_klass = Universe::typeArrayKlassObj(type);
 581     if (array_klass == NULL) {
 582       JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
 583     }
 584   } else {
 585     Klass* klass = JVMCIENV->asKlass(jvmci_type);
 586     if (klass == NULL) {
 587       JVMCI_THROW_0(NullPointerException);
 588     }
 589     array_klass = klass->array_klass(CHECK_NULL);
 590   }
 591   JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
 592   return JVMCIENV->get_jobject(result);
 593 C2V_END
 594 
 595 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
 596   requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
 597   if (mirror == NULL) {
 598     return NULL;
 599   }
 600   JVMCIKlassHandle klass(THREAD);
 601   klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
 602   if (klass == NULL) {
 603     JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
 604   }
 605   JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 606   return JVMCIENV->get_jobject(result);
 607 }
 608 
 609 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 610   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 611   oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
 612   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(result));
 613 C2V_END
 614 
 615 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 616   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 617   return cp->name_and_type_ref_index_at(index);
 618 C2V_END
 619 
 620 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
 621   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 622   JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
 623   return JVMCIENV->get_jobject(sym);
 624 C2V_END
 625 
 626 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
 627   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 628   JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
 629   return JVMCIENV->get_jobject(sym);
 630 C2V_END
 631 
 632 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 633   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 634   return cp->klass_ref_index_at(index);
 635 C2V_END
 636 
 637 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 638   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 639   Klass* klass = cp->klass_at(index, CHECK_NULL);
 640   JVMCIKlassHandle resolved_klass(THREAD, klass);
 641   if (resolved_klass->is_instance_klass()) {
 642     InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
 643     if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
 644       // link_class() should not return here if there is an issue.
 645       JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
 646     }
 647   }
 648   JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
 649   return JVMCIENV->get_jobject(klassObject);
 650 C2V_END
 651 
 652 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 653   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 654   Klass* loading_klass = cp->pool_holder();
 655   bool is_accessible = false;
 656   JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
 657   Symbol* symbol = NULL;
 658   if (klass.is_null()) {
 659     constantTag tag = cp->tag_at(index);
 660     if (tag.is_klass()) {
 661       // The klass has been inserted into the constant pool
 662       // very recently.
 663       klass = cp->resolved_klass_at(index);
 664     } else if (tag.is_symbol()) {
 665       symbol = cp->symbol_at(index);
 666     } else {
 667       assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
 668       symbol = cp->klass_name_at(index);
 669     }
 670   }
 671   JVMCIObject result;
 672   if (!klass.is_null()) {
 673     result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 674   } else {
 675     result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
 676   }
 677   return JVMCIENV->get_jobject(result);
 678 C2V_END
 679 
 680 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 681   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 682   oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
 683   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
 684 C2V_END
 685 
 686 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 687   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 688   InstanceKlass* pool_holder = cp->pool_holder();
 689   Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
 690   methodHandle method = JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder);
 691   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 692   return JVMCIENV->get_jobject(result);
 693 C2V_END
 694 
 695 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 696   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 697   return cp->remap_instruction_operand_from_cache(index);
 698 C2V_END
 699 
 700 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
 701   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 702   Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
 703   fieldDescriptor fd;
 704   LinkInfo link_info(cp, index, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL, CHECK_0);
 705   LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
 706   JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
 707   if (info.is_null() || JVMCIENV->get_length(info) != 3) {
 708     JVMCI_ERROR_NULL("info must not be null and have a length of 3");
 709   }
 710   JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
 711   JVMCIENV->put_int_at(info, 1, fd.offset());
 712   JVMCIENV->put_int_at(info, 2, fd.index());
 713   JVMCIKlassHandle handle(THREAD, fd.field_holder());
 714   JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
 715   return JVMCIENV->get_jobject(field_holder);
 716 C2V_END
 717 
 718 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
 719   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 720   Method* method = JVMCIENV->asMethod(jvmci_method);
 721   if (klass->is_interface()) {
 722     JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
 723   }
 724   if (!method->method_holder()->is_interface()) {
 725     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()));
 726   }
 727   if (!klass->is_instance_klass()) {
 728     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
 729   }
 730   if (!InstanceKlass::cast(klass)->is_linked()) {
 731     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
 732   }
 733   return LinkResolver::vtable_index_of_interface_method(klass, method);
 734 C2V_END
 735 
 736 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
 737   Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
 738   Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
 739   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 740 
 741   Klass* resolved     = method->method_holder();
 742   Symbol* h_name      = method->name();
 743   Symbol* h_signature = method->signature();
 744 
 745   if (MethodHandles::is_signature_polymorphic_method(method())) {
 746       // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
 747       return NULL;
 748   }
 749 
 750   if (method->name() == vmSymbols::clone_name() &&
 751       resolved == SystemDictionary::Object_klass() &&
 752       recv_klass->is_array_klass()) {
 753     // Resolution of the clone method on arrays always returns Object.clone even though that method
 754     // has protected access.  There's some trickery in the access checking to make this all work out
 755     // so it's necessary to pass in the array class as the resolved class to properly trigger this.
 756     // Otherwise it's impossible to resolve the array clone methods through JVMCI.  See
 757     // LinkResolver::check_method_accessability for the matching logic.
 758     resolved = recv_klass;
 759   }
 760 
 761   LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
 762   methodHandle m;
 763   // Only do exact lookup if receiver klass has been linked.  Otherwise,
 764   // the vtable has not been setup, and the LinkResolver will fail.
 765   if (recv_klass->is_array_klass() ||
 766       (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
 767     if (resolved->is_interface()) {
 768       m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
 769     } else {
 770       m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
 771     }
 772   }
 773 
 774   if (m.is_null()) {
 775     // Return NULL if there was a problem with lookup (uninitialized class, etc.)
 776     return NULL;
 777   }
 778 
 779   JVMCIObject result = JVMCIENV->get_jvmci_method(m, JVMCI_CHECK_NULL);
 780   return JVMCIENV->get_jobject(result);
 781 C2V_END
 782 
 783 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
 784   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 785   assert(klass != NULL, "method must not be called for primitive types");
 786   return Dependencies::find_finalizable_subclass(klass) != NULL;
 787 C2V_END
 788 
 789 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
 790   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 791   if (!klass->is_instance_klass()) {
 792     return NULL;
 793   }
 794   InstanceKlass* iklass = InstanceKlass::cast(klass);
 795   JVMCIObject result = JVMCIENV->get_jvmci_method(iklass->class_initializer(), JVMCI_CHECK_NULL);
 796   return JVMCIENV->get_jobject(result);
 797 C2V_END
 798 
 799 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
 800   address target_addr = (address) addr;
 801   if (target_addr != 0x0) {
 802     int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
 803     int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
 804     return MAX2(ABS(off_low), ABS(off_high));
 805   }
 806   return -1;
 807 C2V_END
 808 
 809 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject,  jobject jvmci_method))
 810   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 811   method->set_not_c1_compilable();
 812   method->set_not_c2_compilable();
 813   method->set_dont_inline(true);
 814 C2V_END
 815 
 816 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
 817             jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
 818   HandleMark hm;
 819   JNIHandleMark jni_hm(thread);
 820 
 821   JVMCIObject target_handle = JVMCIENV->wrap(target);
 822   JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
 823   CodeBlob* cb = NULL;
 824   JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
 825   JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
 826 
 827   int speculations_len = JVMCIENV->get_length(speculations_handle);
 828   char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
 829   JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
 830 
 831   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
 832 
 833   TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
 834   bool is_immutable_PIC = JVMCIENV->get_HotSpotCompiledCode_isImmutablePIC(compiled_code_handle) > 0;
 835 
 836   CodeInstaller installer(JVMCIENV, is_immutable_PIC);
 837   JVMCI::CodeInstallResult result = installer.install(compiler,
 838       target_handle,
 839       compiled_code_handle,
 840       cb,
 841       installed_code_handle,
 842       (FailedSpeculation**)(address) failed_speculations_address,
 843       speculations,
 844       speculations_len,
 845       JVMCI_CHECK_0);
 846 
 847   if (PrintCodeCacheOnCompilation) {
 848     stringStream s;
 849     // Dump code cache into a buffer before locking the tty,
 850     {
 851       MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
 852       CodeCache::print_summary(&s, false);
 853     }
 854     ttyLocker ttyl;
 855     tty->print_raw_cr(s.as_string());
 856   }
 857 
 858   if (result != JVMCI::ok) {
 859     assert(cb == NULL, "should be");
 860   } else {
 861     if (installed_code_handle.is_non_null()) {
 862       if (cb->is_nmethod()) {
 863         assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
 864         // Clear the link to an old nmethod first
 865         JVMCIObject nmethod_mirror = installed_code_handle;
 866         JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0);
 867       } else {
 868         assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
 869       }
 870       // Initialize the link to the new code blob
 871       JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
 872     }
 873   }
 874   return result;
 875 C2V_END
 876 
 877 C2V_VMENTRY_0(jint, getMetadata, (JNIEnv *env, jobject, jobject target, jobject compiled_code, jobject metadata))
 878 #if INCLUDE_AOT
 879   HandleMark hm;
 880   assert(JVMCIENV->is_hotspot(), "AOT code is executed only in HotSpot mode");
 881 
 882   JVMCIObject target_handle = JVMCIENV->wrap(target);
 883   JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
 884   JVMCIObject metadata_handle = JVMCIENV->wrap(metadata);
 885 
 886   CodeMetadata code_metadata;
 887 
 888   CodeInstaller installer(JVMCIENV, true /* immutable PIC compilation */);
 889   JVMCI::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, JVMCI_CHECK_0);
 890   if (result != JVMCI::ok) {
 891     return result;
 892   }
 893 
 894   if (code_metadata.get_nr_pc_desc() > 0) {
 895     int size = sizeof(PcDesc) * code_metadata.get_nr_pc_desc();
 896     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 897     JVMCIENV->copy_bytes_from((jbyte*) code_metadata.get_pc_desc(), array, 0, size);
 898     HotSpotJVMCI::HotSpotMetaData::set_pcDescBytes(JVMCIENV, metadata_handle, array);
 899   }
 900 
 901   if (code_metadata.get_scopes_size() > 0) {
 902     int size = code_metadata.get_scopes_size();
 903     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 904     JVMCIENV->copy_bytes_from((jbyte*) code_metadata.get_scopes_desc(), array, 0, size);
 905     HotSpotJVMCI::HotSpotMetaData::set_scopesDescBytes(JVMCIENV, metadata_handle, array);
 906   }
 907 
 908   RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
 909   int size = (int) reloc_buffer->size();
 910   JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 911   JVMCIENV->copy_bytes_from((jbyte*) reloc_buffer->begin(), array, 0, size);
 912   HotSpotJVMCI::HotSpotMetaData::set_relocBytes(JVMCIENV, metadata_handle, array);
 913 
 914   const OopMapSet* oopMapSet = installer.oopMapSet();
 915   {
 916     ResourceMark mark;
 917     ImmutableOopMapBuilder builder(oopMapSet);
 918     int size = builder.heap_size();
 919     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 920     builder.generate_into((address) HotSpotJVMCI::resolve(array)->byte_at_addr(0));
 921     HotSpotJVMCI::HotSpotMetaData::set_oopMaps(JVMCIENV, metadata_handle, array);
 922   }
 923 
 924   AOTOopRecorder* recorder = code_metadata.get_oop_recorder();
 925 
 926   int nr_meta_refs = recorder->nr_meta_refs();
 927   JVMCIObjectArray metadataArray = JVMCIENV->new_Object_array(nr_meta_refs, JVMCI_CHECK_(JVMCI::cache_full));
 928   for (int i = 0; i < nr_meta_refs; ++i) {
 929     jobject element = recorder->meta_element(i);
 930     if (element == NULL) {
 931       return JVMCI::cache_full;
 932     }
 933     JVMCIENV->put_object_at(metadataArray, i, JVMCIENV->wrap(element));
 934   }
 935   HotSpotJVMCI::HotSpotMetaData::set_metadata(JVMCIENV, metadata_handle, metadataArray);
 936 
 937   ExceptionHandlerTable* handler = code_metadata.get_exception_table();
 938   int table_size = handler->size_in_bytes();
 939   JVMCIPrimitiveArray exceptionArray = JVMCIENV->new_byteArray(table_size, JVMCI_CHECK_(JVMCI::cache_full));
 940   if (table_size > 0) {
 941     handler->copy_bytes_to((address) HotSpotJVMCI::resolve(exceptionArray)->byte_at_addr(0));
 942   }
 943   HotSpotJVMCI::HotSpotMetaData::set_exceptionBytes(JVMCIENV, metadata_handle, exceptionArray);
 944 
 945   ImplicitExceptionTable* implicit = code_metadata.get_implicit_exception_table();
 946   int implicit_table_size = implicit->size_in_bytes();
 947   JVMCIPrimitiveArray implicitExceptionArray = JVMCIENV->new_byteArray(implicit_table_size, JVMCI_CHECK_(JVMCI::cache_full));
 948   if (implicit_table_size > 0) {
 949     implicit->copy_bytes_to((address) HotSpotJVMCI::resolve(implicitExceptionArray)->byte_at_addr(0), implicit_table_size);
 950   }
 951   HotSpotJVMCI::HotSpotMetaData::set_implicitExceptionBytes(JVMCIENV, metadata_handle, implicitExceptionArray);
 952 
 953   return result;
 954 #else
 955   JVMCI_THROW_MSG_0(InternalError, "unimplemented");
 956 #endif
 957 C2V_END
 958 
 959 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
 960   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
 961   CompilerStatistics* stats = compiler->stats();
 962   stats->_standard.reset();
 963   stats->_osr.reset();
 964 C2V_END
 965 
 966 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
 967   HandleMark hm;
 968 
 969   if (installedCode == NULL) {
 970     JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
 971   }
 972 
 973   JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
 974   nmethodLocker locker;
 975   CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject, locker);
 976   if (cb == NULL) {
 977     return NULL;
 978   }
 979 
 980   // We don't want the stringStream buffer to resize during disassembly as it
 981   // uses scoped resource memory. If a nested function called during disassembly uses
 982   // a ResourceMark and the buffer expands within the scope of the mark,
 983   // the buffer becomes garbage when that scope is exited. Experience shows that
 984   // the disassembled code is typically about 10x the code size so a fixed buffer
 985   // sized to 20x code size plus a fixed amount for header info should be sufficient.
 986   int bufferSize = cb->code_size() * 20 + 1024;
 987   char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
 988   stringStream st(buffer, bufferSize);
 989   if (cb->is_nmethod()) {
 990     nmethod* nm = (nmethod*) cb;
 991     if (!nm->is_alive()) {
 992       return NULL;
 993     }
 994   }
 995   Disassembler::decode(cb, &st);
 996   if (st.size() <= 0) {
 997     return NULL;
 998   }
 999 
1000   JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1001   return JVMCIENV->get_jobject(result);
1002 C2V_END
1003 
1004 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
1005   HandleMark hm;
1006 
1007   methodHandle method = JVMCIENV->asMethod(jvmci_method);
1008   JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1009   return JVMCIENV->get_jobject(element);
1010 C2V_END
1011 
1012 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1013   // The incoming arguments array would have to contain JavaConstants instead of regular objects
1014   // and the return value would have to be wrapped as a JavaConstant.
1015   requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1016 
1017   HandleMark hm;
1018 
1019   JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1020   nmethodLocker locker;
1021   nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, locker);
1022   if (nm == NULL || !nm->is_in_use()) {
1023     JVMCI_THROW_NULL(InvalidInstalledCodeException);
1024   }
1025   methodHandle mh = nm->method();
1026   Symbol* signature = mh->signature();
1027   JavaCallArguments jca(mh->size_of_parameters());
1028 
1029   JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1030   JavaValue result(jap.get_ret_type());
1031   jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1032   JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1033 
1034   if (jap.get_ret_type() == T_VOID) {
1035     return NULL;
1036   } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
1037     return JNIHandles::make_local((oop) result.get_jobject());
1038   } else {
1039     jvalue *value = (jvalue *) result.get_value_addr();
1040     // Narrow the value down if required (Important on big endian machines)
1041     switch (jap.get_ret_type()) {
1042       case T_BOOLEAN:
1043        value->z = (jboolean) value->i;
1044        break;
1045       case T_BYTE:
1046        value->b = (jbyte) value->i;
1047        break;
1048       case T_CHAR:
1049        value->c = (jchar) value->i;
1050        break;
1051       case T_SHORT:
1052        value->s = (jshort) value->i;
1053        break;
1054       default:
1055         break;
1056     }
1057     JVMCIObject o = JVMCIENV->create_box(jap.get_ret_type(), value, JVMCI_CHECK_NULL);
1058     return JVMCIENV->get_jobject(o);
1059   }
1060 C2V_END
1061 
1062 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method))
1063   Method* method = JVMCIENV->asMethod(jvmci_method);
1064   if (!method->has_linenumber_table()) {
1065     return NULL;
1066   }
1067   u2 num_entries = 0;
1068   CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1069   while (streamForSize.read_pair()) {
1070     num_entries++;
1071   }
1072 
1073   CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1074   JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1075 
1076   int i = 0;
1077   jlong value;
1078   while (stream.read_pair()) {
1079     value = ((long) stream.bci());
1080     JVMCIENV->put_long_at(result, i, value);
1081     value = ((long) stream.line());
1082     JVMCIENV->put_long_at(result, i + 1, value);
1083     i += 2;
1084   }
1085 
1086   return (jlongArray) JVMCIENV->get_jobject(result);
1087 C2V_END
1088 
1089 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1090   Method* method = JVMCIENV->asMethod(jvmci_method);
1091   if (!method->has_localvariable_table()) {
1092     return 0;
1093   }
1094   return (jlong) (address) method->localvariable_table_start();
1095 C2V_END
1096 
1097 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1098   Method* method = JVMCIENV->asMethod(jvmci_method);
1099   return method->localvariable_table_length();
1100 C2V_END
1101 
1102 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1103   Method* method = JVMCIENV->asMethod(jvmci_method);
1104   MethodCounters* mcs = method->method_counters();
1105   if (mcs != NULL) {
1106     mcs->clear_counters();
1107   }
1108   NOT_PRODUCT(method->set_compiled_invocation_count(0));
1109 
1110   CompiledMethod* code = method->code();
1111   if (code != NULL) {
1112     code->make_not_entrant();
1113   }
1114 
1115   MethodData* method_data = method->method_data();
1116   if (method_data == NULL) {
1117     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1118     method_data = MethodData::allocate(loader_data, method, CHECK);
1119     method->set_method_data(method_data);
1120   } else {
1121     method_data->initialize();
1122   }
1123 C2V_END
1124 
1125 
1126 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod))
1127   JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1128   JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK);
1129 C2V_END
1130 
1131 C2V_VMENTRY_NULL(jobject, readUncompressedOop, (JNIEnv* env, jobject, jlong addr))
1132   oop ret = RawAccess<>::oop_load((oop*)(address)addr);
1133   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(ret));
1134  C2V_END
1135 
1136 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1137   // Returns a zero length array if counters aren't enabled
1138   JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1139   if (JVMCICounterSize > 0) {
1140     jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1141     JavaThread::collect_counters(temp_array, JVMCICounterSize);
1142     JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1143   }
1144   return (jlongArray) JVMCIENV->get_jobject(array);
1145 C2V_END
1146 
1147 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1148   return (jint) JVMCICounterSize;
1149 C2V_END
1150 
1151 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1152   return JavaThread::resize_all_jvmci_counters(new_size);
1153 C2V_END
1154 
1155 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1156   HandleMark hm;
1157   if (jvmci_method == NULL) {
1158     JVMCI_THROW_0(NullPointerException);
1159   }
1160   Method* method = JVMCIENV->asMethod(jvmci_method);
1161   if (entry_bci >= method->code_size() || entry_bci < -1) {
1162     JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1163   }
1164   return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1165 C2V_END
1166 
1167 
1168 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1169   MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1170   return mdo != NULL && mdo->is_mature();
1171 C2V_END
1172 
1173 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1174   Method* method = JVMCIENV->asMethod(jvmci_method);
1175   return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1176 C2V_END
1177 
1178 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1179   JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1180   return JVMCIENV->get_jobject(sym);
1181 C2V_END
1182 
1183 bool matches(jobjectArray methods, Method* method, JVMCIEnv* JVMCIENV) {
1184   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1185 
1186   for (int i = 0; i < methods_oop->length(); i++) {
1187     oop resolved = methods_oop->obj_at(i);
1188     if ((resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) && HotSpotJVMCI::asMethod(JVMCIENV, resolved) == method) {
1189       return true;
1190     }
1191   }
1192   return false;
1193 }
1194 
1195 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1196   CallInfo callinfo;
1197   Handle receiver = args->receiver();
1198   Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1199   LinkInfo link_info(spec_klass, name, signature);
1200   LinkResolver::resolve_interface_call(
1201           callinfo, receiver, recvrKlass, link_info, true, CHECK);
1202   methodHandle method = callinfo.selected_method();
1203   assert(method.not_null(), "should have thrown exception");
1204 
1205   // Invoke the method
1206   JavaCalls::call(result, method, args, CHECK);
1207 }
1208 
1209 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1210 
1211   if (!thread->has_last_Java_frame()) {
1212     return NULL;
1213   }
1214   Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1215 
1216   requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1217 
1218   HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1219   Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1220 
1221   StackFrameStream fst(thread);
1222   jobjectArray methods = initial_methods;
1223 
1224   int frame_number = 0;
1225   vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1226 
1227   while (true) {
1228     // look for the given method
1229     bool realloc_called = false;
1230     while (true) {
1231       StackValueCollection* locals = NULL;
1232       if (vf->is_compiled_frame()) {
1233         // compiled method frame
1234         compiledVFrame* cvf = compiledVFrame::cast(vf);
1235         if (methods == NULL || matches(methods, cvf->method(), JVMCIENV)) {
1236           if (initialSkip > 0) {
1237             initialSkip--;
1238           } else {
1239             ScopeDesc* scope = cvf->scope();
1240             // native wrappers do not have a scope
1241             if (scope != NULL && scope->objects() != NULL) {
1242               GrowableArray<ScopeValue*>* objects;
1243               if (!realloc_called) {
1244                 objects = scope->objects();
1245               } else {
1246                 // some object might already have been re-allocated, only reallocate the non-allocated ones
1247                 objects = new GrowableArray<ScopeValue*>(scope->objects()->length());
1248                 for (int i = 0; i < scope->objects()->length(); i++) {
1249                   ObjectValue* sv = (ObjectValue*) scope->objects()->at(i);
1250                   if (sv->value().is_null()) {
1251                     objects->append(sv);
1252                   }
1253                 }
1254               }
1255               bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), fst.register_map(), objects, CHECK_NULL);
1256               Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1257               realloc_called = true;
1258 
1259               GrowableArray<ScopeValue*>* local_values = scope->locals();
1260               assert(local_values != NULL, "NULL locals");
1261               typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1262               typeArrayHandle array(THREAD, array_oop);
1263               for (int i = 0; i < local_values->length(); i++) {
1264                 ScopeValue* value = local_values->at(i);
1265                 if (value->is_object()) {
1266                   array->bool_at_put(i, true);
1267                 }
1268               }
1269               HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), array());
1270             } else {
1271               HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1272             }
1273 
1274             locals = cvf->locals();
1275             HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), cvf->bci());
1276             JVMCIObject method = JVMCIENV->get_jvmci_method(cvf->method(), JVMCI_CHECK_NULL);
1277             HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1278           }
1279         }
1280       } else if (vf->is_interpreted_frame()) {
1281         // interpreted method frame
1282         interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1283         if (methods == NULL || matches(methods, ivf->method(), JVMCIENV)) {
1284           if (initialSkip > 0) {
1285             initialSkip--;
1286           } else {
1287             locals = ivf->locals();
1288             HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), ivf->bci());
1289             JVMCIObject method = JVMCIENV->get_jvmci_method(ivf->method(), JVMCI_CHECK_NULL);
1290             HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1291             HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1292           }
1293         }
1294       }
1295 
1296       // locals != NULL means that we found a matching frame and result is already partially initialized
1297       if (locals != NULL) {
1298         methods = match_methods;
1299         HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1300         HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) fst.current()->sp());
1301         HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1302 
1303         // initialize the locals array
1304         objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1305         objArrayHandle array(THREAD, array_oop);
1306         for (int i = 0; i < locals->size(); i++) {
1307           StackValue* var = locals->at(i);
1308           if (var->type() == T_OBJECT) {
1309             array->obj_at_put(i, locals->at(i)->get_obj()());
1310           }
1311         }
1312         HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1313         HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1314 
1315         JavaValue result(T_OBJECT);
1316         JavaCallArguments args(visitor);
1317         args.push_oop(frame_reference);
1318         call_interface(&result, HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1319         if (result.get_jobject() != NULL) {
1320           return JNIHandles::make_local(thread, (oop) result.get_jobject());
1321         }
1322         assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1323         if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1324           // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1325           intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1326           fst = StackFrameStream(thread);
1327           while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1328             fst.next();
1329           }
1330           if (fst.current()->sp() != stack_pointer) {
1331             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1332           }
1333           vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1334           if (!vf->is_compiled_frame()) {
1335             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1336           }
1337           for (int i = 0; i < frame_number; i++) {
1338             if (vf->is_top()) {
1339               THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1340             }
1341             vf = vf->sender();
1342             assert(vf->is_compiled_frame(), "Wrong frame type");
1343           }
1344         }
1345         frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1346         HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1347       }
1348 
1349       if (vf->is_top()) {
1350         break;
1351       }
1352       frame_number++;
1353       vf = vf->sender();
1354     } // end of vframe loop
1355 
1356     if (fst.is_done()) {
1357       break;
1358     }
1359     fst.next();
1360     vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1361     frame_number = 0;
1362   } // end of frame loop
1363 
1364   // the end was reached without finding a matching method
1365   return NULL;
1366 C2V_END
1367 
1368 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1369   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1370   CallInfo callInfo;
1371   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1372   ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1373   cp_cache_entry->set_dynamic_call(cp, callInfo);
1374 C2V_END
1375 
1376 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1377   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1378   Klass* holder = cp->klass_ref_at(index, CHECK);
1379   Symbol* name = cp->name_ref_at(index);
1380   if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1381     CallInfo callInfo;
1382     LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1383     ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1384     cp_cache_entry->set_method_handle(cp, callInfo);
1385   }
1386 C2V_END
1387 
1388 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1389   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1390   ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1391   if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1392     // MethodHandle.invoke* --> LambdaForm?
1393     ResourceMark rm;
1394 
1395     LinkInfo link_info(cp, index, CATCH);
1396 
1397     Klass* resolved_klass = link_info.resolved_klass();
1398 
1399     Symbol* name_sym = cp->name_ref_at(index);
1400 
1401     vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1402     vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1403 
1404     methodHandle adapter_method(cp_cache_entry->f1_as_method());
1405 
1406     methodHandle resolved_method(adapter_method);
1407 
1408     // Can we treat it as a regular invokevirtual?
1409     if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1410       vmassert(!resolved_method->is_static(),"!");
1411       vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1412       vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1413       vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1414       vmassert(cp_cache_entry->method_type_if_resolved(cp) == NULL, "!");
1415 
1416       methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1417       vmassert(m == resolved_method, "!!");
1418       return -1;
1419     }
1420 
1421     return Bytecodes::_invokevirtual;
1422   }
1423   if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1424     return Bytecodes::_invokedynamic;
1425   }
1426   return -1;
1427 C2V_END
1428 
1429 
1430 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1431   JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1432   JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1433   JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1434   JVMCIENV->put_object_at(holders, 0, mh);
1435   JVMCIENV->put_object_at(holders, 1, vh);
1436   return JVMCIENV->get_jobject(holders);
1437 C2V_END
1438 
1439 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1440   //see compute_recording_non_safepoints in debugInfroRec.cpp
1441   if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1442     return true;
1443   }
1444   return DebugNonSafepoints;
1445 C2V_END
1446 
1447 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1448 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1449   JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1450   if (hs_frame.is_null()) {
1451     JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1452   }
1453 
1454   requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1455 
1456   JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1457 
1458   // look for the given stack frame
1459   StackFrameStream fst(thread);
1460   intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1461   while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1462     fst.next();
1463   }
1464   if (fst.current()->sp() != stack_pointer) {
1465     JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1466   }
1467 
1468   if (invalidate) {
1469     if (!fst.current()->is_compiled_frame()) {
1470       JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1471     }
1472     assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1473     ((nmethod*) fst.current()->cb())->make_not_entrant();
1474   }
1475   Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1476   // look for the frame again as it has been updated by deopt (pc, deopt state...)
1477   StackFrameStream fstAfterDeopt(thread);
1478   while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1479     fstAfterDeopt.next();
1480   }
1481   if (fstAfterDeopt.current()->sp() != stack_pointer) {
1482     JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1483   }
1484 
1485   vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1486   if (!vf->is_compiled_frame()) {
1487     JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1488   }
1489 
1490   GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1491   while (true) {
1492     assert(vf->is_compiled_frame(), "Wrong frame type");
1493     virtualFrames->push(compiledVFrame::cast(vf));
1494     if (vf->is_top()) {
1495       break;
1496     }
1497     vf = vf->sender();
1498   }
1499 
1500   int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1501   if (last_frame_number >= virtualFrames->length()) {
1502     JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1503   }
1504 
1505   // Reallocate the non-escaping objects and restore their fields.
1506   assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1507   GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1508 
1509   if (objects == NULL) {
1510     // no objects to materialize
1511     return;
1512   }
1513 
1514   bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1515   Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1516 
1517   for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1518     compiledVFrame* cvf = virtualFrames->at(frame_index);
1519 
1520     GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1521     StackValueCollection* locals = cvf->locals();
1522     if (locals != NULL) {
1523       for (int i2 = 0; i2 < locals->size(); i2++) {
1524         StackValue* var = locals->at(i2);
1525         if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1526           jvalue val;
1527           val.l = (jobject) locals->at(i2)->get_obj()();
1528           cvf->update_local(T_OBJECT, i2, val);
1529         }
1530       }
1531     }
1532 
1533     GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1534     StackValueCollection* expressions = cvf->expressions();
1535     if (expressions != NULL) {
1536       for (int i2 = 0; i2 < expressions->size(); i2++) {
1537         StackValue* var = expressions->at(i2);
1538         if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1539           jvalue val;
1540           val.l = (jobject) expressions->at(i2)->get_obj()();
1541           cvf->update_stack(T_OBJECT, i2, val);
1542         }
1543       }
1544     }
1545 
1546     GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1547     GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1548     if (monitors != NULL) {
1549       for (int i2 = 0; i2 < monitors->length(); i2++) {
1550         cvf->update_monitor(i2, monitors->at(i2));
1551       }
1552     }
1553   }
1554 
1555   // all locals are materialized by now
1556   JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL);
1557   // update the locals array
1558   JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1559   StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1560   for (int i = 0; i < locals->size(); i++) {
1561     StackValue* var = locals->at(i);
1562     if (var->type() == T_OBJECT) {
1563       JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1564     }
1565   }
1566   HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1567 C2V_END
1568 
1569 // Creates a scope where the current thread is attached and detached
1570 // from HotSpot if it wasn't already attached when entering the scope.
1571 extern "C" void jio_printf(const char *fmt, ...);
1572 class AttachDetach : public StackObj {
1573  public:
1574   bool _attached;
1575   AttachDetach(JNIEnv* env, JavaThread* current_thread) {
1576     if (current_thread == NULL) {
1577       extern struct JavaVM_ main_vm;
1578       JNIEnv* hotspotEnv;
1579       jint res = main_vm.AttachCurrentThread((void**)&hotspotEnv, NULL);
1580       _attached = res == JNI_OK;
1581       static volatile int report_attach_error = 0;
1582       if (res != JNI_OK && report_attach_error == 0 && Atomic::cmpxchg(1, &report_attach_error, 0) == 0) {
1583         // Only report an attach error once
1584         jio_printf("Warning: attaching current thread to VM failed with %d (future attach errors are suppressed)\n", res);
1585       }
1586     } else {
1587       _attached = false;
1588     }
1589   }
1590   ~AttachDetach() {
1591     if (_attached && get_current_thread() != NULL) {
1592       extern struct JavaVM_ main_vm;
1593       jint res = main_vm.DetachCurrentThread();
1594       static volatile int report_detach_error = 0;
1595       if (res != JNI_OK && report_detach_error == 0 && Atomic::cmpxchg(1, &report_detach_error, 0) == 0) {
1596         // Only report an attach error once
1597         jio_printf("Warning: detaching current thread from VM failed with %d (future attach errors are suppressed)\n", res);
1598       }
1599     }
1600   }
1601 };
1602 
1603 C2V_VMENTRY_PREFIX(jint, writeDebugOutput, (JNIEnv* env, jobject, jbyteArray bytes, jint offset, jint length, bool flush, bool can_throw))
1604   AttachDetach ad(env, thread);
1605   bool use_tty = true;
1606   if (thread == NULL) {
1607     if (!ad._attached) {
1608       // Can only use tty if the current thread is attached
1609       TRACE_jvmci_1("Cannot write to tty on unattached thread");
1610       return 0;
1611     }
1612     thread = get_current_thread();
1613   }
1614   JVMCITraceMark jtm("writeDebugOutput");
1615   C2V_BLOCK(void, writeDebugOutput, (JNIEnv* env, jobject, jbyteArray bytes, jint offset, jint length))
1616   if (bytes == NULL) {
1617     if (can_throw) {
1618       JVMCI_THROW_0(NullPointerException);
1619     }
1620     return -1;
1621   }
1622   JVMCIPrimitiveArray array = JVMCIENV->wrap(bytes);
1623 
1624   // Check if offset and length are non negative.
1625   if (offset < 0 || length < 0) {
1626     if (can_throw) {
1627       JVMCI_THROW_0(ArrayIndexOutOfBoundsException);
1628     }
1629     return -2;
1630   }
1631   // Check if the range is valid.
1632   int array_length = JVMCIENV->get_length(array);
1633   if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array_length)) {
1634     if (can_throw) {
1635       JVMCI_THROW_0(ArrayIndexOutOfBoundsException);
1636     }
1637     return -2;
1638   }
1639   jbyte buffer[O_BUFLEN];
1640   while (length > 0) {
1641     int copy_len = MIN2(length, (jint)O_BUFLEN);
1642     JVMCIENV->copy_bytes_to(array, buffer, offset, copy_len);
1643     tty->write((char*) buffer, copy_len);
1644     length -= O_BUFLEN;
1645     offset += O_BUFLEN;
1646   }
1647   if (flush) {
1648     tty->flush();
1649   }
1650   return 0;
1651 C2V_END
1652 
1653 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv* env, jobject))
1654   tty->flush();
1655 C2V_END
1656 
1657 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position))
1658   MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1659   ProfileData* profile_data = mdo->data_at(position);
1660   if (mdo->is_valid(profile_data)) {
1661     return profile_data->size_in_bytes();
1662   }
1663   DataLayout* data    = mdo->extra_data_base();
1664   DataLayout* end   = mdo->extra_data_limit();
1665   for (;; data = mdo->next_extra(data)) {
1666     assert(data < end, "moved past end of extra data");
1667     profile_data = data->data_in();
1668     if (mdo->dp_to_di(profile_data->dp()) == position) {
1669       return profile_data->size_in_bytes();
1670     }
1671   }
1672   JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1673 C2V_END
1674 
1675 C2V_VMENTRY_0(jlong, getFingerprint, (JNIEnv* env, jobject, jlong metaspace_klass))
1676 #if INCLUDE_AOT
1677   Klass *k = (Klass*) (address) metaspace_klass;
1678   if (k->is_instance_klass()) {
1679     return InstanceKlass::cast(k)->get_stored_fingerprint();
1680   } else {
1681     return 0;
1682   }
1683 #else
1684   JVMCI_THROW_MSG_0(InternalError, "unimplemented");
1685 #endif
1686 C2V_END
1687 
1688 C2V_VMENTRY_NULL(jobject, getHostClass, (JNIEnv* env, jobject, jobject jvmci_type))
1689   InstanceKlass* k = InstanceKlass::cast(JVMCIENV->asKlass(jvmci_type));
1690   InstanceKlass* host = k->host_klass();
1691   JVMCIKlassHandle handle(THREAD, host);
1692   JVMCIObject result = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
1693   return JVMCIENV->get_jobject(result);
1694 C2V_END
1695 
1696 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type))
1697   if (jvmci_type == NULL) {
1698     JVMCI_THROW_0(NullPointerException);
1699   }
1700 
1701   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1702   if (klass == NULL) {
1703     JVMCI_THROW_0(NullPointerException);
1704   }
1705   if (!klass->is_instance_klass()) {
1706     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1707   }
1708   InstanceKlass* iklass = InstanceKlass::cast(klass);
1709 
1710   // Regular instance klass, fill in all local interfaces
1711   int size = iklass->local_interfaces()->length();
1712   JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1713   for (int index = 0; index < size; index++) {
1714     JVMCIKlassHandle klass(THREAD);
1715     Klass* k = iklass->local_interfaces()->at(index);
1716     klass = k;
1717     JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1718     JVMCIENV->put_object_at(interfaces, index, type);
1719   }
1720   return JVMCIENV->get_jobject(interfaces);
1721 C2V_END
1722 
1723 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type))
1724   if (jvmci_type == NULL) {
1725     JVMCI_THROW_0(NullPointerException);
1726   }
1727 
1728   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1729   oop mirror = klass->java_mirror();
1730   if (java_lang_Class::is_primitive(mirror) ||
1731       !java_lang_Class::as_Klass(mirror)->is_array_klass()) {
1732     return NULL;
1733   }
1734 
1735   oop component_mirror = java_lang_Class::component_mirror(mirror);
1736   if (component_mirror == NULL) {
1737     return NULL;
1738   }
1739   Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1740   if (component_klass != NULL) {
1741     JVMCIKlassHandle klass_handle(THREAD);
1742     klass_handle = component_klass;
1743     JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1744     return JVMCIENV->get_jobject(result);
1745   }
1746   BasicType type = java_lang_Class::primitive_type(component_mirror);
1747   JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1748   return JVMCIENV->get_jobject(result);
1749 C2V_END
1750 
1751 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type))
1752   if (jvmci_type == NULL) {
1753     JVMCI_THROW(NullPointerException);
1754   }
1755 
1756   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1757   if (klass != NULL && klass->should_be_initialized()) {
1758     InstanceKlass* k = InstanceKlass::cast(klass);
1759     k->initialize(CHECK);
1760   }
1761 C2V_END
1762 
1763 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1764   if (bytecode_frame_handle == NULL) {
1765     JVMCI_THROW_0(NullPointerException);
1766   }
1767 
1768   JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1769   JVMCIObject bytecode_frame = top_bytecode_frame;
1770   int size = 0;
1771   int callee_parameters = 0;
1772   int callee_locals = 0;
1773   Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1774   int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1775 
1776   while (bytecode_frame.is_non_null()) {
1777     int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1778     int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1779     bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1780     Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1781 
1782     int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1783                                                                  temps + callee_parameters,
1784                                                                  extra_args,
1785                                                                  locks,
1786                                                                  callee_parameters,
1787                                                                  callee_locals,
1788                                                                  is_top_frame);
1789     size += frame_size;
1790 
1791     callee_parameters = method->size_of_parameters();
1792     callee_locals = method->max_locals();
1793     extra_args = 0;
1794     bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1795   }
1796   return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1797 C2V_END
1798 
1799 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1800   Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1801   if (lambda_form->is_a(SystemDictionary::LambdaForm_klass())) {
1802     TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode", CHECK);
1803     JavaValue result(T_VOID);
1804     JavaCalls::call_special(&result, lambda_form, SystemDictionary::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1805   } else {
1806     JVMCI_THROW_MSG(IllegalArgumentException,
1807                     err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1808   }
1809 C2V_END
1810 
1811 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1812   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1813   return obj->identity_hash();
1814 C2V_END
1815 
1816 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1817   Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1818   if (!java_lang_String::is_instance(str())) {
1819     return false;
1820   }
1821   int len;
1822   jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_0);
1823   return (StringTable::lookup(name, len) != NULL);
1824 C2V_END
1825 
1826 
1827 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1828   if (object == NULL) {
1829     JVMCI_THROW_0(NullPointerException);
1830   }
1831   Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1832   BasicType type = java_lang_boxing_object::basic_type(box());
1833   jvalue result;
1834   if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1835     return NULL;
1836   }
1837   JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1838   return JVMCIENV->get_jobject(boxResult);
1839 C2V_END
1840 
1841 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1842   if (object == NULL) {
1843     JVMCI_THROW_0(NullPointerException);
1844   }
1845   JVMCIObject box = JVMCIENV->wrap(object);
1846   BasicType type = JVMCIENV->get_box_type(box);
1847   if (type == T_ILLEGAL) {
1848     return NULL;
1849   }
1850   jvalue value = JVMCIENV->get_boxed_value(type, box);
1851   JavaValue box_result(T_OBJECT);
1852   JavaCallArguments jargs;
1853   Klass* box_klass = NULL;
1854   Symbol* box_signature = NULL;
1855 #define BOX_CASE(bt, v, argtype, name)           \
1856   case bt: \
1857     jargs.push_##argtype(value.v); \
1858     box_klass = SystemDictionary::name##_klass(); \
1859     box_signature = vmSymbols::name##_valueOf_signature(); \
1860     break
1861 
1862   switch (type) {
1863     BOX_CASE(T_BOOLEAN, z, int, Boolean);
1864     BOX_CASE(T_BYTE, b, int, Byte);
1865     BOX_CASE(T_CHAR, c, int, Character);
1866     BOX_CASE(T_SHORT, s, int, Short);
1867     BOX_CASE(T_INT, i, int, Integer);
1868     BOX_CASE(T_LONG, j, long, Long);
1869     BOX_CASE(T_FLOAT, f, float, Float);
1870     BOX_CASE(T_DOUBLE, d, double, Double);
1871     default:
1872       ShouldNotReachHere();
1873   }
1874 #undef BOX_CASE
1875 
1876   JavaCalls::call_static(&box_result,
1877                          box_klass,
1878                          vmSymbols::valueOf_name(),
1879                          box_signature, &jargs, CHECK_NULL);
1880   oop hotspot_box = (oop) box_result.get_jobject();
1881   JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
1882   return JVMCIENV->get_jobject(result);
1883 C2V_END
1884 
1885 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder))
1886   if (holder == NULL) {
1887     JVMCI_THROW_0(NullPointerException);
1888   }
1889   Klass* klass = JVMCIENV->asKlass(holder);
1890   if (!klass->is_instance_klass()) {
1891     JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1892     return JVMCIENV->get_jobjectArray(methods);
1893   }
1894 
1895   InstanceKlass* iklass = InstanceKlass::cast(klass);
1896   // Ensure class is linked
1897   iklass->link_class(CHECK_NULL);
1898 
1899   GrowableArray<Method*> constructors_array;
1900   for (int i = 0; i < iklass->methods()->length(); i++) {
1901     Method* m = iklass->methods()->at(i);
1902     if (m->is_initializer() && !m->is_static()) {
1903       constructors_array.append(m);
1904     }
1905   }
1906   JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1907   for (int i = 0; i < constructors_array.length(); i++) {
1908     JVMCIObject method = JVMCIENV->get_jvmci_method(constructors_array.at(i), JVMCI_CHECK_NULL);
1909     JVMCIENV->put_object_at(methods, i, method);
1910   }
1911   return JVMCIENV->get_jobjectArray(methods);
1912 C2V_END
1913 
1914 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1915   if (holder == NULL) {
1916     JVMCI_THROW_0(NullPointerException);
1917   }
1918   Klass* klass = JVMCIENV->asKlass(holder);
1919   if (!klass->is_instance_klass()) {
1920     JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1921     return JVMCIENV->get_jobjectArray(methods);
1922   }
1923 
1924   InstanceKlass* iklass = InstanceKlass::cast(klass);
1925   // Ensure class is linked
1926   iklass->link_class(CHECK_NULL);
1927 
1928   GrowableArray<Method*> methods_array;
1929   for (int i = 0; i < iklass->methods()->length(); i++) {
1930     Method* m = iklass->methods()->at(i);
1931     if (!m->is_initializer() && !m->is_overpass()) {
1932       methods_array.append(m);
1933     }
1934   }
1935   JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1936   for (int i = 0; i < methods_array.length(); i++) {
1937     JVMCIObject method = JVMCIENV->get_jvmci_method(methods_array.at(i), JVMCI_CHECK_NULL);
1938     JVMCIENV->put_object_at(methods, i, method);
1939   }
1940   return JVMCIENV->get_jobjectArray(methods);
1941 C2V_END
1942 
1943 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject field, jboolean is_volatile))
1944   if (object == NULL || field == NULL) {
1945     JVMCI_THROW_0(NullPointerException);
1946   }
1947   JVMCIObject field_object = JVMCIENV->wrap(field);
1948   JVMCIObject java_type = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_type(field_object);
1949   int modifiers = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_modifiers(field_object);
1950   Klass* holder = JVMCIENV->asKlass(JVMCIENV->get_HotSpotResolvedJavaFieldImpl_holder(field_object));
1951   if (!holder->is_instance_klass()) {
1952     JVMCI_THROW_MSG_0(InternalError, err_msg("Holder %s must be instance klass", holder->external_name()));
1953   }
1954   InstanceKlass* ik = InstanceKlass::cast(holder);
1955   BasicType constant_type;
1956   if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(java_type)) {
1957     constant_type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(java_type), JVMCI_CHECK_NULL);
1958   } else {
1959     constant_type = T_OBJECT;
1960   }
1961   int displacement = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_offset(field_object);
1962   fieldDescriptor fd;
1963   if (!ik->find_local_field_from_offset(displacement, (modifiers & JVM_ACC_STATIC) != 0, &fd)) {
1964     JVMCI_THROW_MSG_0(InternalError, err_msg("Can't find field with displacement %d", displacement));
1965   }
1966   JVMCIObject base = JVMCIENV->wrap(object);
1967   Handle obj;
1968   if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) {
1969     obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL);
1970   } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) {
1971     Klass* klass = JVMCIENV->asKlass(base);
1972     obj = Handle(THREAD, klass->java_mirror());
1973   } else {
1974     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
1975                          err_msg("Unexpected type: %s", JVMCIENV->klass_name(base)));
1976   }
1977   jlong value = 0;
1978   JVMCIObject kind;
1979   switch (constant_type) {
1980     case T_OBJECT: {
1981       oop object = is_volatile ? obj->obj_field_acquire(displacement) : obj->obj_field(displacement);
1982       JVMCIObject result = JVMCIENV->get_object_constant(object);
1983       if (result.is_null()) {
1984         return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
1985       }
1986       return JVMCIENV->get_jobject(result);
1987     }
1988     case T_FLOAT: {
1989       float f = is_volatile ? obj->float_field_acquire(displacement) : obj->float_field(displacement);
1990       JVMCIObject result = JVMCIENV->call_JavaConstant_forFloat(f, JVMCI_CHECK_NULL);
1991       return JVMCIENV->get_jobject(result);
1992     }
1993     case T_DOUBLE: {
1994       double f = is_volatile ? obj->double_field_acquire(displacement) : obj->double_field(displacement);
1995       JVMCIObject result = JVMCIENV->call_JavaConstant_forDouble(f, JVMCI_CHECK_NULL);
1996       return JVMCIENV->get_jobject(result);
1997     }
1998     case T_BOOLEAN: value = is_volatile ? obj->bool_field_acquire(displacement) : obj->bool_field(displacement); break;
1999     case T_BYTE: value = is_volatile ? obj->byte_field_acquire(displacement) : obj->byte_field(displacement); break;
2000     case T_SHORT: value = is_volatile ? obj->short_field_acquire(displacement) : obj->short_field(displacement); break;
2001     case T_CHAR: value = is_volatile ? obj->char_field_acquire(displacement) : obj->char_field(displacement); break;
2002     case T_INT: value = is_volatile ? obj->int_field_acquire(displacement) : obj->int_field(displacement); break;
2003     case T_LONG: value = is_volatile ? obj->long_field_acquire(displacement) : obj->long_field(displacement); break;
2004     default:
2005       ShouldNotReachHere();
2006   }
2007   JVMCIObject result = JVMCIENV->call_PrimitiveConstant_forTypeChar(type2char(constant_type), value, JVMCI_CHECK_NULL);
2008   return JVMCIENV->get_jobject(result);
2009 C2V_END
2010 
2011 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object))
2012   if (object == NULL || holder == NULL) {
2013     JVMCI_THROW_0(NullPointerException);
2014   }
2015   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2016   Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2017   return obj->is_a(klass);
2018 C2V_END
2019 
2020 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder))
2021   if (holder == NULL || otherHolder == NULL) {
2022     JVMCI_THROW_0(NullPointerException);
2023   }
2024   Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2025   Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder));
2026   return otherKlass->is_subtype_of(klass);
2027 C2V_END
2028 
2029 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder))
2030   if (holder == NULL) {
2031     JVMCI_THROW_0(NullPointerException);
2032   }
2033   InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder)));
2034   if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2035     return true;
2036   }
2037   return false;
2038 C2V_END
2039 
2040 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2041   if (object == NULL) {
2042     JVMCI_THROW_0(NullPointerException);
2043   }
2044   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2045   if (java_lang_Class::is_instance(obj())) {
2046     if (java_lang_Class::is_primitive(obj())) {
2047       JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2048       return JVMCIENV->get_jobject(type);
2049     }
2050     Klass* klass = java_lang_Class::as_Klass(obj());
2051     JVMCIKlassHandle klass_handle(THREAD);
2052     klass_handle = klass;
2053     JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2054     return JVMCIENV->get_jobject(type);
2055   }
2056   return NULL;
2057 C2V_END
2058 
2059 
2060 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2061   if (object == NULL) {
2062     JVMCI_THROW_0(NullPointerException);
2063   }
2064   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2065   const char* str = java_lang_String::as_utf8_string(obj());
2066   JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2067   return JVMCIENV->get_jobject(result);
2068 C2V_END
2069 
2070 
2071 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2072   if (x == NULL || y == NULL) {
2073     JVMCI_THROW_0(NullPointerException);
2074   }
2075   return JVMCIENV->resolve_handle(xHandle) == JVMCIENV->resolve_handle(yHandle);
2076 C2V_END
2077 
2078 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object))
2079   if (object == NULL) {
2080     JVMCI_THROW_0(NullPointerException);
2081   }
2082   JVMCIObject base_object = JVMCIENV->wrap(object);
2083   Handle mirror;
2084   if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
2085     mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror());
2086   } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) {
2087     mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL);
2088   } else {
2089     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2090                          err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
2091  }
2092   JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2093   return JVMCIENV->get_jobject(result);
2094 C2V_END
2095 
2096 
2097 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2098   if (x == NULL) {
2099     JVMCI_THROW_0(NullPointerException);
2100   }
2101   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2102   if (xobj->klass()->is_array_klass()) {
2103     return arrayOop(xobj())->length();
2104   }
2105   return -1;
2106  C2V_END
2107 
2108 
2109 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2110   if (x == NULL) {
2111     JVMCI_THROW_0(NullPointerException);
2112   }
2113   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2114   if (xobj->klass()->is_array_klass()) {
2115     arrayOop array = arrayOop(xobj());
2116     BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2117     if (index < 0 || index >= array->length()) {
2118       return NULL;
2119     }
2120     JVMCIObject result;
2121 
2122     if (element_type == T_OBJECT) {
2123       result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2124       if (result.is_null()) {
2125         result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2126       }
2127     } else {
2128       jvalue value;
2129       switch (element_type) {
2130         case T_DOUBLE:        value.d = typeArrayOop(xobj())->double_at(index);        break;
2131         case T_FLOAT:         value.f = typeArrayOop(xobj())->float_at(index);         break;
2132         case T_LONG:          value.j = typeArrayOop(xobj())->long_at(index);          break;
2133         case T_INT:           value.i = typeArrayOop(xobj())->int_at(index);            break;
2134         case T_SHORT:         value.s = typeArrayOop(xobj())->short_at(index);          break;
2135         case T_CHAR:          value.c = typeArrayOop(xobj())->char_at(index);           break;
2136         case T_BYTE:          value.b = typeArrayOop(xobj())->byte_at(index);           break;
2137         case T_BOOLEAN:       value.z = typeArrayOop(xobj())->byte_at(index) & 1;       break;
2138         default:              ShouldNotReachHere();
2139       }
2140       result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2141     }
2142     assert(!result.is_null(), "must have a value");
2143     return JVMCIENV->get_jobject(result);
2144   }
2145   return NULL;;
2146 C2V_END
2147 
2148 
2149 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind))
2150   if (kind == NULL) {
2151     JVMCI_THROW_0(NullPointerException);
2152   }
2153   BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2154   return arrayOopDesc::header_size(type) * HeapWordSize;
2155 C2V_END
2156 
2157 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind))
2158   if (kind == NULL) {
2159     JVMCI_THROW_0(NullPointerException);
2160   }
2161   BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2162   return type2aelembytes(type);
2163 C2V_END
2164 
2165 C2V_VMENTRY_0(jbyte, getByte, (JNIEnv* env, jobject, jobject x, long displacement))
2166   if (x == NULL) {
2167     JVMCI_THROW_0(NullPointerException);
2168   }
2169   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2170   return xobj->byte_field(displacement);
2171 }
2172 
2173 C2V_VMENTRY_0(jshort, getShort, (JNIEnv* env, jobject, jobject x, long displacement))
2174   if (x == NULL) {
2175     JVMCI_THROW_0(NullPointerException);
2176   }
2177   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2178   return xobj->short_field(displacement);
2179 }
2180 
2181 C2V_VMENTRY_0(jint, getInt, (JNIEnv* env, jobject, jobject x, long displacement))
2182   if (x == NULL) {
2183     JVMCI_THROW_0(NullPointerException);
2184   }
2185   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2186   return xobj->int_field(displacement);
2187 }
2188 
2189 C2V_VMENTRY_0(jlong, getLong, (JNIEnv* env, jobject, jobject x, long displacement))
2190   if (x == NULL) {
2191     JVMCI_THROW_0(NullPointerException);
2192   }
2193   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2194   return xobj->long_field(displacement);
2195 }
2196 
2197 C2V_VMENTRY_NULL(jobject, getObject, (JNIEnv* env, jobject, jobject x, long displacement))
2198   if (x == NULL) {
2199     JVMCI_THROW_0(NullPointerException);
2200   }
2201   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2202   oop res = xobj->obj_field(displacement);
2203   JVMCIObject result = JVMCIENV->get_object_constant(res);
2204   return JVMCIENV->get_jobject(result);
2205 }
2206 
2207 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong h))
2208   jobject handle = (jobject)(address)h;
2209   if (handle != NULL) {
2210     JVMCIENV->runtime()->destroy_global(handle);
2211   }
2212 }
2213 
2214 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2215   if (!UseJVMCINativeLibrary) {
2216     JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2217   }
2218 }
2219 
2220 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2221   requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2222   requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2223   char* sl_path;
2224   void* sl_handle;
2225   JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2226   {
2227     // Ensure the JVMCI shared library runtime is initialized.
2228     JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2229     JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2230     HandleMark hm;
2231     JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv);
2232     if (peerEnv->has_pending_exception()) {
2233       peerEnv->describe_pending_exception(true);
2234     }
2235     sl_handle = JVMCI::get_shared_library(sl_path, false);
2236     if (sl_handle == NULL) {
2237       JVMCI_THROW_MSG_0(InternalError, err_msg("Error initializing JVMCI runtime %d", runtime->id()));
2238     }
2239   }
2240 
2241   if (mirror == NULL) {
2242     JVMCI_THROW_0(NullPointerException);
2243   }
2244   Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2245   if (klass == NULL || !klass->is_instance_klass()) {
2246     JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2247   }
2248 
2249   InstanceKlass* iklass = InstanceKlass::cast(klass);
2250   for (int i = 0; i < iklass->methods()->length(); i++) {
2251     Method* method = iklass->methods()->at(i);
2252     if (method->is_native()) {
2253 
2254       // Compute argument size
2255       int args_size = 1                             // JNIEnv
2256                     + (method->is_static() ? 1 : 0) // class for static methods
2257                     + method->size_of_parameters(); // actual parameters
2258 
2259       // 1) Try JNI short style
2260       stringStream st;
2261       char* pure_name = NativeLookup::pure_jni_name(method);
2262       os::print_jni_name_prefix_on(&st, args_size);
2263       st.print_raw(pure_name);
2264       os::print_jni_name_suffix_on(&st, args_size);
2265       char* jni_name = st.as_string();
2266 
2267       address entry = (address) os::dll_lookup(sl_handle, jni_name);
2268       if (entry == NULL) {
2269         // 2) Try JNI long style
2270         st.reset();
2271         char* long_name = NativeLookup::long_jni_name(method);
2272         os::print_jni_name_prefix_on(&st, args_size);
2273         st.print_raw(pure_name);
2274         st.print_raw(long_name);
2275         os::print_jni_name_suffix_on(&st, args_size);
2276         char* jni_long_name = st.as_string();
2277         entry = (address) os::dll_lookup(sl_handle, jni_long_name);
2278         if (entry == NULL) {
2279           JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2280               method->name_and_sig_as_C_string(),
2281               jni_name, jni_long_name, sl_path));
2282         }
2283       }
2284 
2285       if (method->has_native_function() && entry != method->native_function()) {
2286         JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2287             method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2288       }
2289       method->set_native_function(entry, Method::native_bind_event_is_interesting);
2290       if (PrintJNIResolving) {
2291         tty->print_cr("[Dynamic-linking native method %s.%s ... JNI] @ " PTR_FORMAT,
2292           method->method_holder()->external_name(),
2293           method->name()->as_C_string(), p2i((void*) entry));
2294       }
2295     }
2296   }
2297 
2298   typeArrayOop info_oop = oopFactory::new_longArray(4, CHECK_0);
2299   jlongArray info = (jlongArray) JNIHandles::make_local(info_oop);
2300   runtime->init_JavaVM_info(info, JVMCI_CHECK_0);
2301   return info;
2302 }
2303 
2304 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2305   if (thread == NULL) {
2306     // Called from unattached JVMCI shared library thread
2307     return false;
2308   }
2309   JVMCITraceMark jtm("isCurrentThreadAttached");
2310   if (thread->jni_environment() == env) {
2311     C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2312     requireJVMCINativeLibrary(JVMCI_CHECK_0);
2313     JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2314     if (runtime == NULL || !runtime->has_shared_library_javavm()) {
2315       JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in isCurrentThreadAttached");
2316     }
2317     JNIEnv* peerEnv;
2318     return runtime->GetEnv(thread, (void**) &peerEnv, JNI_VERSION_1_2) == JNI_OK;
2319   }
2320   return true;
2321 C2V_END
2322 
2323 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2324   if (thread == NULL) {
2325     // Called from unattached JVMCI shared library thread
2326     return 0L;
2327   }
2328   JVMCITraceMark jtm("getCurrentJavaThread");
2329   return (jlong) p2i(thread);
2330 C2V_END
2331 
2332 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean as_daemon))
2333   if (thread == NULL) {
2334     // Called from unattached JVMCI shared library thread
2335     extern struct JavaVM_ main_vm;
2336     JNIEnv* hotspotEnv;
2337     jint res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**) &hotspotEnv, NULL) :
2338                            main_vm.AttachCurrentThread((void**) &hotspotEnv, NULL);
2339     if (res != JNI_OK) {
2340       JNI_THROW_("attachCurrentThread", InternalError, err_msg("Trying to attach thread returned %d", res), false);
2341     }
2342     return true;
2343   }
2344   JVMCITraceMark jtm("attachCurrentThread");
2345   if (thread->jni_environment() == env) {
2346     // Called from HotSpot
2347     C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2348     requireJVMCINativeLibrary(JVMCI_CHECK_0);
2349     JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2350     if (runtime == NULL || !runtime->has_shared_library_javavm()) {
2351         JVMCI_THROW_MSG_0(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in attachCurrentThread");
2352     }
2353 
2354     JavaVMAttachArgs attach_args;
2355     attach_args.version = JNI_VERSION_1_2;
2356     attach_args.name = thread->name();
2357     attach_args.group = NULL;
2358     JNIEnv* peerJNIEnv;
2359     if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) == JNI_OK) {
2360       return false;
2361     }
2362     jint res = as_daemon ? runtime->AttachCurrentThreadAsDaemon(thread, (void**) &peerJNIEnv, &attach_args) :
2363                            runtime->AttachCurrentThread(thread, (void**) &peerJNIEnv, &attach_args);
2364 
2365     if (res == JNI_OK) {
2366       guarantee(peerJNIEnv != NULL, "must be");
2367       TRACE_jvmci_1("attached to JavaVM for JVMCI runtime %d", runtime->id());
2368       return true;
2369     }
2370     JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2371   }
2372   // Called from JVMCI shared library
2373   return false;
2374 C2V_END
2375 
2376 C2V_VMENTRY_PREFIX(void, detachCurrentThread, (JNIEnv* env, jobject c2vm))
2377   if (thread == NULL) {
2378     // Called from unattached JVMCI shared library thread
2379     JNI_THROW("detachCurrentThread", IllegalStateException, "Cannot detach non-attached thread");
2380   }
2381   JVMCITraceMark jtm("detachCurrentThread");
2382   if (thread->jni_environment() == env) {
2383     // Called from HotSpot
2384     C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2385     requireJVMCINativeLibrary(JVMCI_CHECK);
2386     requireInHotSpot("detachCurrentThread", JVMCI_CHECK);
2387     JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2388     if (runtime == NULL || !runtime->has_shared_library_javavm()) {
2389       JVMCI_THROW_MSG(IllegalStateException, "Require JVMCI shared library JavaVM to be initialized in detachCurrentThread");
2390     }
2391     JNIEnv* peerJNIEnv;
2392     if (runtime->GetEnv(thread, (void**) &peerJNIEnv, JNI_VERSION_1_2) != JNI_OK) {
2393       JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2394     }
2395     jint res = runtime->DetachCurrentThread(thread);
2396     if (res != JNI_OK) {
2397       JVMCI_THROW_MSG(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2398     }
2399   } else {
2400     // Called from attached JVMCI shared library thread
2401     extern struct JavaVM_ main_vm;
2402     jint res = main_vm.DetachCurrentThread();
2403     if (res != JNI_OK) {
2404       JNI_THROW("detachCurrentThread", InternalError, "Cannot detach non-attached thread");
2405     }
2406   }
2407 C2V_END
2408 
2409 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
2410   requireJVMCINativeLibrary(JVMCI_CHECK_0);
2411   if (obj_handle == NULL) {
2412     return 0L;
2413   }
2414   JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2415   JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2416   JVMCIEnv* thisEnv = JVMCIENV;
2417 
2418   JVMCIObject obj = thisEnv->wrap(obj_handle);
2419   JVMCIObject result;
2420   if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2421     Method* method = thisEnv->asMethod(obj);
2422     result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2423   } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2424     Klass* klass = thisEnv->asKlass(obj);
2425     JVMCIKlassHandle klass_handle(THREAD);
2426     klass_handle = klass;
2427     result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2428   } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2429     BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2430     result = peerEnv->get_jvmci_primitive_type(type);
2431   } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2432              thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2433     Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2434     result = peerEnv->get_object_constant(constant());
2435   } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2436     nmethodLocker locker;
2437     nmethod* nm = JVMCIENV->get_nmethod(obj, locker);
2438     if (nm != NULL) {
2439       JVMCINMethodData* data = nm->jvmci_nmethod_data();
2440       if (data != NULL) {
2441         if (peerEnv->is_hotspot()) {
2442           // Only the mirror in the HotSpot heap is accessible
2443           // through JVMCINMethodData
2444           oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2445           if (nmethod_mirror != NULL) {
2446             result = HotSpotJVMCI::wrap(nmethod_mirror);
2447           }
2448         }
2449       }
2450     }
2451     if (result.is_null()) {
2452       JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2453       methodHandle mh = thisEnv->asMethod(methodObject);
2454       jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2455       jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2456       JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2457       const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2458       // Create a new HotSpotNmethod instance in the peer runtime
2459       result = peerEnv->new_HotSpotNmethod(mh(), cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2460       if (nm == NULL) {
2461         // nmethod must have been unloaded
2462       } else {
2463         // Link the new HotSpotNmethod to the nmethod
2464         peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2465         // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2466         if (peerEnv->is_hotspot()) {
2467           JVMCINMethodData* data = nm->jvmci_nmethod_data();
2468           if (data == NULL) {
2469             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2470           }
2471           if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
2472             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2473           }
2474           oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2475           data->set_nmethod_mirror(nm, nmethod_mirror);
2476         }
2477       }
2478     }
2479   } else {
2480     JVMCI_THROW_MSG_0(IllegalArgumentException,
2481                 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2482   }
2483   return (jlong) peerEnv->make_global(result).as_jobject();
2484 }
2485 
2486 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2487   requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2488   if (obj_handle == 0L) {
2489     return NULL;
2490   }
2491   jobject global_handle = (jobject) obj_handle;
2492   JVMCIObject global_handle_obj = JVMCIENV->wrap((jobject) obj_handle);
2493   jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2494 
2495   JVMCIENV->destroy_global(global_handle_obj);
2496   return result;
2497 }
2498 
2499 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2500   JVMCIObject code = JVMCIENV->wrap(code_handle);
2501   // Execute this operation for the side effect of updating the InstalledCode state
2502   nmethodLocker locker;
2503   JVMCIENV->get_nmethod(code, locker);
2504 }
2505 
2506 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2507   JVMCIObject code = JVMCIENV->wrap(code_handle);
2508   nmethodLocker locker;
2509   CodeBlob* cb = JVMCIENV->get_code_blob(code, locker);
2510   if (cb == NULL) {
2511     return NULL;
2512   }
2513   int code_size = cb->code_size();
2514   JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2515   JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2516   return JVMCIENV->get_jbyteArray(result);
2517 }
2518 
2519 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2520   requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2521   methodHandle m = JVMCIENV->asMethod(jvmci_method);
2522   oop executable;
2523   if (m->is_initializer()) {
2524     if (m->is_static_initializer()) {
2525       JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2526           "Cannot create java.lang.reflect.Method for class initializer");
2527     }
2528     executable = Reflection::new_constructor(m, CHECK_NULL);
2529   } else {
2530     executable = Reflection::new_method(m, false, CHECK_NULL);
2531   }
2532   return JNIHandles::make_local(THREAD, executable);
2533 }
2534 
2535 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2536   requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2537   Klass* klass = JVMCIENV->asKlass(jvmci_type);
2538   if (!klass->is_instance_klass()) {
2539     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2540         err_msg("Expected non-primitive type, got %s", klass->external_name()));
2541   }
2542   InstanceKlass* iklass = InstanceKlass::cast(klass);
2543   Array<u2>* fields = iklass->fields();
2544   if (index < 0 ||index > fields->length()) {
2545     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2546         err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2547   }
2548   fieldDescriptor fd(iklass, index);
2549   oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2550   return JNIHandles::make_local(env, reflected);
2551 }
2552 
2553 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2554   FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2555   int result_length = 0;
2556   for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) {
2557     result_length++;
2558   }
2559   int current_length = 0;
2560   JVMCIObjectArray current_array = NULL;
2561   if (current != NULL) {
2562     current_array = JVMCIENV->wrap(current);
2563     current_length = JVMCIENV->get_length(current_array);
2564     if (current_length == result_length) {
2565       // No new failures
2566       return current;
2567     }
2568   }
2569   JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2570   int result_index = 0;
2571   for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2572     assert(fs != NULL, "npe");
2573     JVMCIPrimitiveArray entry;
2574     if (result_index < current_length) {
2575       entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2576     } else {
2577       entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2578       JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2579     }
2580     JVMCIENV->put_object_at(result, result_index++, entry);
2581   }
2582   return JVMCIENV->get_jobjectArray(result);
2583 }
2584 
2585 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2586   methodHandle method = JVMCIENV->asMethod(jvmci_method);
2587   MethodData* method_data = method->method_data();
2588   if (method_data == NULL) {
2589     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2590     method_data = MethodData::allocate(loader_data, method, CHECK_0);
2591     method->set_method_data(method_data);
2592   }
2593   return (jlong) method_data->get_failed_speculations_address();
2594 }
2595 
2596 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2597   FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2598 }
2599 
2600 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2601   JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2602   int speculation_len = JVMCIENV->get_length(speculation_handle);
2603   char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2604   JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2605   return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2606 }
2607 
2608 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2609   JavaValue result(T_VOID);
2610   JavaCallArguments jargs(1);
2611   jargs.push_int(status);
2612   JavaCalls::call_static(&result,
2613                        SystemDictionary::System_klass(),
2614                        vmSymbols::exit_method_name(),
2615                        vmSymbols::int_void_signature(),
2616                        &jargs,
2617                        CHECK);
2618 }
2619 
2620 #define CC (char*)  /*cast a literal from (const char*)*/
2621 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
2622 
2623 #define STRING                  "Ljava/lang/String;"
2624 #define OBJECT                  "Ljava/lang/Object;"
2625 #define CLASS                   "Ljava/lang/Class;"
2626 #define OBJECTCONSTANT          "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
2627 #define HANDLECONSTANT          "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;"
2628 #define EXECUTABLE              "Ljava/lang/reflect/Executable;"
2629 #define STACK_TRACE_ELEMENT     "Ljava/lang/StackTraceElement;"
2630 #define INSTALLED_CODE          "Ljdk/vm/ci/code/InstalledCode;"
2631 #define TARGET_DESCRIPTION      "Ljdk/vm/ci/code/TargetDescription;"
2632 #define BYTECODE_FRAME          "Ljdk/vm/ci/code/BytecodeFrame;"
2633 #define JAVACONSTANT            "Ljdk/vm/ci/meta/JavaConstant;"
2634 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
2635 #define RESOLVED_METHOD         "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
2636 #define HS_RESOLVED_METHOD      "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
2637 #define HS_RESOLVED_KLASS       "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
2638 #define HS_RESOLVED_TYPE        "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
2639 #define HS_RESOLVED_FIELD       "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;"
2640 #define HS_INSTALLED_CODE       "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
2641 #define HS_NMETHOD              "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
2642 #define HS_CONSTANT_POOL        "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
2643 #define HS_COMPILED_CODE        "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
2644 #define HS_CONFIG               "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
2645 #define HS_METADATA             "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
2646 #define HS_STACK_FRAME_REF      "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
2647 #define HS_SPECULATION_LOG      "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
2648 #define METASPACE_OBJECT        "Ljdk/vm/ci/hotspot/MetaspaceObject;"
2649 #define REFLECTION_EXECUTABLE   "Ljava/lang/reflect/Executable;"
2650 #define REFLECTION_FIELD        "Ljava/lang/reflect/Field;"
2651 #define METASPACE_METHOD_DATA   "J"
2652 
2653 JNINativeMethod CompilerToVM::methods[] = {
2654   {CC "getBytecode",                                  CC "(" HS_RESOLVED_METHOD ")[B",                                                      FN_PTR(getBytecode)},
2655   {CC "getExceptionTableStart",                       CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getExceptionTableStart)},
2656   {CC "getExceptionTableLength",                      CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getExceptionTableLength)},
2657   {CC "findUniqueConcreteMethod",                     CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD,                   FN_PTR(findUniqueConcreteMethod)},
2658   {CC "getImplementor",                               CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getImplementor)},
2659   {CC "getStackTraceElement",                         CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT,                                   FN_PTR(getStackTraceElement)},
2660   {CC "methodIsIgnoredBySecurityStackWalk",           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(methodIsIgnoredBySecurityStackWalk)},
2661   {CC "setNotInlinableOrCompilable",                  CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(setNotInlinableOrCompilable)},
2662   {CC "isCompilable",                                 CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(isCompilable)},
2663   {CC "hasNeverInlineDirective",                      CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(hasNeverInlineDirective)},
2664   {CC "shouldInlineMethod",                           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(shouldInlineMethod)},
2665   {CC "lookupType",                                   CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE,                                FN_PTR(lookupType)},
2666   {CC "getArrayType",                                 CC "(" HS_RESOLVED_TYPE ")" HS_RESOLVED_KLASS,                                        FN_PTR(getArrayType)},
2667   {CC "lookupClass",                                  CC "(" CLASS ")" HS_RESOLVED_TYPE,                                                    FN_PTR(lookupClass)},
2668   {CC "lookupNameInPool",                             CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupNameInPool)},
2669   {CC "lookupNameAndTypeRefIndexInPool",              CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupNameAndTypeRefIndexInPool)},
2670   {CC "lookupSignatureInPool",                        CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupSignatureInPool)},
2671   {CC "lookupKlassRefIndexInPool",                    CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupKlassRefIndexInPool)},
2672   {CC "lookupKlassInPool",                            CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;",                                       FN_PTR(lookupKlassInPool)},
2673   {CC "lookupAppendixInPool",                         CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(lookupAppendixInPool)},
2674   {CC "lookupMethodInPool",                           CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD,                                     FN_PTR(lookupMethodInPool)},
2675   {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(constantPoolRemapInstructionOperandFromCache)},
2676   {CC "resolvePossiblyCachedConstantInPool",          CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(resolvePossiblyCachedConstantInPool)},
2677   {CC "resolveTypeInPool",                            CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS,                                       FN_PTR(resolveTypeInPool)},
2678   {CC "resolveFieldInPool",                           CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS,              FN_PTR(resolveFieldInPool)},
2679   {CC "resolveInvokeDynamicInPool",                   CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeDynamicInPool)},
2680   {CC "resolveInvokeHandleInPool",                    CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeHandleInPool)},
2681   {CC "isResolvedInvokeHandleInPool",                 CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(isResolvedInvokeHandleInPool)},
2682   {CC "resolveMethod",                                CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
2683   {CC "getSignaturePolymorphicHolders",               CC "()[" STRING,                                                                      FN_PTR(getSignaturePolymorphicHolders)},
2684   {CC "getVtableIndexForInterfaceMethod",             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I",                                     FN_PTR(getVtableIndexForInterfaceMethod)},
2685   {CC "getClassInitializer",                          CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD,                                      FN_PTR(getClassInitializer)},
2686   {CC "hasFinalizableSubclass",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(hasFinalizableSubclass)},
2687   {CC "getMaxCallTargetOffset",                       CC "(J)J",                                                                            FN_PTR(getMaxCallTargetOffset)},
2688   {CC "asResolvedJavaMethod",                         CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD,                                             FN_PTR(asResolvedJavaMethod)},
2689   {CC "getResolvedJavaMethod",                        CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD,                                        FN_PTR(getResolvedJavaMethod)},
2690   {CC "getConstantPool",                              CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL,                                         FN_PTR(getConstantPool)},
2691   {CC "getResolvedJavaType0",                         CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS,                                        FN_PTR(getResolvedJavaType0)},
2692   {CC "readConfiguration",                            CC "()[" OBJECT,                                                                      FN_PTR(readConfiguration)},
2693   {CC "installCode",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I",                    FN_PTR(installCode)},
2694   {CC "getMetadata",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I",                          FN_PTR(getMetadata)},
2695   {CC "resetCompilationStatistics",                   CC "()V",                                                                             FN_PTR(resetCompilationStatistics)},
2696   {CC "disassembleCodeBlob",                          CC "(" INSTALLED_CODE ")" STRING,                                                     FN_PTR(disassembleCodeBlob)},
2697   {CC "executeHotSpotNmethod",                        CC "([" OBJECT HS_NMETHOD ")" OBJECT,                                                 FN_PTR(executeHotSpotNmethod)},
2698   {CC "getLineNumberTable",                           CC "(" HS_RESOLVED_METHOD ")[J",                                                      FN_PTR(getLineNumberTable)},
2699   {CC "getLocalVariableTableStart",                   CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getLocalVariableTableStart)},
2700   {CC "getLocalVariableTableLength",                  CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getLocalVariableTableLength)},
2701   {CC "reprofile",                                    CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(reprofile)},
2702   {CC "invalidateHotSpotNmethod",                     CC "(" HS_NMETHOD ")V",                                                               FN_PTR(invalidateHotSpotNmethod)},
2703   {CC "readUncompressedOop",                          CC "(J)" OBJECTCONSTANT,                                                              FN_PTR(readUncompressedOop)},
2704   {CC "collectCounters",                              CC "()[J",                                                                            FN_PTR(collectCounters)},
2705   {CC "getCountersSize",                              CC "()I",                                                                             FN_PTR(getCountersSize)},
2706   {CC "setCountersSize",                              CC "(I)Z",                                                                            FN_PTR(setCountersSize)},
2707   {CC "allocateCompileId",                            CC "(" HS_RESOLVED_METHOD "I)I",                                                      FN_PTR(allocateCompileId)},
2708   {CC "isMature",                                     CC "(" METASPACE_METHOD_DATA ")Z",                                                    FN_PTR(isMature)},
2709   {CC "hasCompiledCodeForOSR",                        CC "(" HS_RESOLVED_METHOD "II)Z",                                                     FN_PTR(hasCompiledCodeForOSR)},
2710   {CC "getSymbol",                                    CC "(J)" STRING,                                                                      FN_PTR(getSymbol)},
2711   {CC "iterateFrames",                                CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT,   FN_PTR(iterateFrames)},
2712   {CC "materializeVirtualObjects",                    CC "(" HS_STACK_FRAME_REF "Z)V",                                                      FN_PTR(materializeVirtualObjects)},
2713   {CC "shouldDebugNonSafepoints",                     CC "()Z",                                                                             FN_PTR(shouldDebugNonSafepoints)},
2714   {CC "writeDebugOutput",                             CC "([BIIZZ)I",                                                                       FN_PTR(writeDebugOutput)},
2715   {CC "flushDebugOutput",                             CC "()V",                                                                             FN_PTR(flushDebugOutput)},
2716   {CC "methodDataProfileDataSize",                    CC "(JI)I",                                                                           FN_PTR(methodDataProfileDataSize)},
2717   {CC "getFingerprint",                               CC "(J)J",                                                                            FN_PTR(getFingerprint)},
2718   {CC "getHostClass",                                 CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getHostClass)},
2719   {CC "interpreterFrameSize",                         CC "(" BYTECODE_FRAME ")I",                                                           FN_PTR(interpreterFrameSize)},
2720   {CC "compileToBytecode",                            CC "(" OBJECTCONSTANT ")V",                                                           FN_PTR(compileToBytecode)},
2721   {CC "getFlagValue",                                 CC "(" STRING ")" OBJECT,                                                             FN_PTR(getFlagValue)},
2722   {CC "getObjectAtAddress",                           CC "(J)" OBJECT,                                                                      FN_PTR(getObjectAtAddress)},
2723   {CC "getInterfaces",                                CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS,                                      FN_PTR(getInterfaces)},
2724   {CC "getComponentType",                             CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE,                                        FN_PTR(getComponentType)},
2725   {CC "ensureInitialized",                            CC "(" HS_RESOLVED_KLASS ")V",                                                        FN_PTR(ensureInitialized)},
2726   {CC "getIdentityHashCode",                          CC "(" OBJECTCONSTANT ")I",                                                           FN_PTR(getIdentityHashCode)},
2727   {CC "isInternedString",                             CC "(" OBJECTCONSTANT ")Z",                                                           FN_PTR(isInternedString)},
2728   {CC "unboxPrimitive",                               CC "(" OBJECTCONSTANT ")" OBJECT,                                                     FN_PTR(unboxPrimitive)},
2729   {CC "boxPrimitive",                                 CC "(" OBJECT ")" OBJECTCONSTANT,                                                     FN_PTR(boxPrimitive)},
2730   {CC "getDeclaredConstructors",                      CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD,                                        FN_PTR(getDeclaredConstructors)},
2731   {CC "getDeclaredMethods",                           CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD,                                        FN_PTR(getDeclaredMethods)},
2732   {CC "readFieldValue",                               CC "(" HS_RESOLVED_KLASS HS_RESOLVED_FIELD "Z)" JAVACONSTANT,                         FN_PTR(readFieldValue)},
2733   {CC "readFieldValue",                               CC "(" OBJECTCONSTANT HS_RESOLVED_FIELD "Z)" JAVACONSTANT,                            FN_PTR(readFieldValue)},
2734   {CC "isInstance",                                   CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z",                                         FN_PTR(isInstance)},
2735   {CC "isAssignableFrom",                             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z",                                      FN_PTR(isAssignableFrom)},
2736   {CC "isTrustedForIntrinsics",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(isTrustedForIntrinsics)},
2737   {CC "asJavaType",                                   CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE,                                           FN_PTR(asJavaType)},
2738   {CC "asString",                                     CC "(" OBJECTCONSTANT ")" STRING,                                                     FN_PTR(asString)},
2739   {CC "equals",                                       CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z",                                       FN_PTR(equals)},
2740   {CC "getJavaMirror",                                CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT,                                           FN_PTR(getJavaMirror)},
2741   {CC "getArrayLength",                               CC "(" OBJECTCONSTANT ")I",                                                           FN_PTR(getArrayLength)},
2742   {CC "readArrayElement",                             CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;",                                         FN_PTR(readArrayElement)},
2743   {CC "arrayBaseOffset",                              CC "(Ljdk/vm/ci/meta/JavaKind;)I",                                                    FN_PTR(arrayBaseOffset)},
2744   {CC "arrayIndexScale",                              CC "(Ljdk/vm/ci/meta/JavaKind;)I",                                                    FN_PTR(arrayIndexScale)},
2745   {CC "getByte",                                      CC "(" OBJECTCONSTANT "J)B",                                                          FN_PTR(getByte)},
2746   {CC "getShort",                                     CC "(" OBJECTCONSTANT "J)S",                                                          FN_PTR(getShort)},
2747   {CC "getInt",                                       CC "(" OBJECTCONSTANT "J)I",                                                          FN_PTR(getInt)},
2748   {CC "getLong",                                      CC "(" OBJECTCONSTANT "J)J",                                                          FN_PTR(getLong)},
2749   {CC "getObject",                                    CC "(" OBJECTCONSTANT "J)" OBJECTCONSTANT,                                            FN_PTR(getObject)},
2750   {CC "deleteGlobalHandle",                           CC "(J)V",                                                                            FN_PTR(deleteGlobalHandle)},
2751   {CC "registerNativeMethods",                        CC "(" CLASS ")[J",                                                                   FN_PTR(registerNativeMethods)},
2752   {CC "isCurrentThreadAttached",                      CC "()Z",                                                                             FN_PTR(isCurrentThreadAttached)},
2753   {CC "getCurrentJavaThread",                         CC "()J",                                                                             FN_PTR(getCurrentJavaThread)},
2754   {CC "attachCurrentThread",                          CC "(Z)Z",                                                                            FN_PTR(attachCurrentThread)},
2755   {CC "detachCurrentThread",                          CC "()V",                                                                             FN_PTR(detachCurrentThread)},
2756   {CC "translate",                                    CC "(" OBJECT ")J",                                                                   FN_PTR(translate)},
2757   {CC "unhand",                                       CC "(J)" OBJECT,                                                                      FN_PTR(unhand)},
2758   {CC "updateHotSpotNmethod",                         CC "(" HS_NMETHOD ")V",                                                               FN_PTR(updateHotSpotNmethod)},
2759   {CC "getCode",                                      CC "(" HS_INSTALLED_CODE ")[B",                                                       FN_PTR(getCode)},
2760   {CC "asReflectionExecutable",                       CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE,                                  FN_PTR(asReflectionExecutable)},
2761   {CC "asReflectionField",                            CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD,                                       FN_PTR(asReflectionField)},
2762   {CC "getFailedSpeculations",                        CC "(J[[B)[[B",                                                                       FN_PTR(getFailedSpeculations)},
2763   {CC "getFailedSpeculationsAddress",                 CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getFailedSpeculationsAddress)},
2764   {CC "releaseFailedSpeculations",                    CC "(J)V",                                                                            FN_PTR(releaseFailedSpeculations)},
2765   {CC "addFailedSpeculation",                         CC "(J[B)Z",                                                                          FN_PTR(addFailedSpeculation)},
2766   {CC "callSystemExit",                               CC "(I)V",                                                                            FN_PTR(callSystemExit)},
2767 };
2768 
2769 int CompilerToVM::methods_count() {
2770   return sizeof(methods) / sizeof(JNINativeMethod);
2771 }