1 /*
   2  * Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #include "precompiled.hpp"
  25 #include "classfile/javaClasses.inline.hpp"
  26 #include "classfile/stringTable.hpp"
  27 #include "classfile/symbolTable.hpp"
  28 #include "code/scopeDesc.hpp"
  29 #include "compiler/compileBroker.hpp"
  30 #include "compiler/disassembler.hpp"
  31 #include "interpreter/linkResolver.hpp"
  32 #include "interpreter/bytecodeStream.hpp"
  33 #include "jvmci/jvmciCompilerToVM.hpp"
  34 #include "jvmci/jvmciCodeInstaller.hpp"
  35 #include "jvmci/jvmciRuntime.hpp"
  36 #include "memory/oopFactory.hpp"
  37 #include "memory/universe.hpp"
  38 #include "oops/constantPool.inline.hpp"
  39 #include "oops/method.inline.hpp"
  40 #include "oops/typeArrayOop.inline.hpp"
  41 #include "prims/nativeLookup.hpp"
  42 #include "runtime/deoptimization.hpp"
  43 #include "runtime/fieldDescriptor.inline.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->klass_holder());
  55   }
  56 }
  57 
  58 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
  59   _klass = klass;
  60   if (klass != NULL) {
  61     _holder = Handle(_thread, klass->klass_holder());
  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     if (JVMCITraceLevel >= 1) {
 101       tty->print_cr(PTR_FORMAT " JVMCITrace-1: Enter %s", p2i(JavaThread::current()), _msg);
 102     }
 103   }
 104   ~JVMCITraceMark() {
 105     if (JVMCITraceLevel >= 1) {
 106       tty->print_cr(PTR_FORMAT " JVMCITrace-1: Exit %s", p2i(JavaThread::current()), _msg);
 107     }
 108   }
 109 };
 110 
 111 
 112 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
 113   assert(_index < _args->length(), "out of bounds");
 114   oop arg=((objArrayOop) (_args))->obj_at(_index++);
 115   assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
 116   return Handle(Thread::current(), arg);
 117 }
 118 
 119 // Bring the JVMCI compiler thread into the VM state.
 120 #define JVMCI_VM_ENTRY_MARK                   \
 121   ThreadInVMfromNative __tiv(thread);         \
 122   ResetNoHandleMark rnhm;                     \
 123   HandleMarkCleaner __hm(thread);             \
 124   Thread* THREAD = thread;                    \
 125   debug_only(VMNativeEntryWrapper __vew;)
 126 
 127 // Native method block that transitions current thread to '_thread_in_vm'.
 128 #define C2V_BLOCK(result_type, name, signature)      \
 129   TRACE_CALL(result_type, jvmci_ ## name signature)  \
 130   JVMCI_VM_ENTRY_MARK;                               \
 131   ResourceMark rm;                                   \
 132   JNI_JVMCIENV(thread, env);
 133 
 134 static Thread* get_current_thread() {
 135   return Thread::current_or_null_safe();
 136 }
 137 
 138 // Entry to native method implementation that transitions
 139 // current thread to '_thread_in_vm'.
 140 #define C2V_VMENTRY(result_type, name, signature)        \
 141   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
 142   Thread* base_thread = get_current_thread();            \
 143   if (base_thread == NULL) {                             \
 144     env->ThrowNew(JNIJVMCI::InternalError::clazz(),      \
 145         err_msg("Cannot call into HotSpot from JVMCI shared library without attaching current thread")); \
 146     return;                                              \
 147   }                                                      \
 148   assert(base_thread->is_Java_thread(), "just checking");\
 149   JavaThread* thread = (JavaThread*) base_thread;        \
 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   Thread* base_thread = get_current_thread();            \
 156   if (base_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   assert(base_thread->is_Java_thread(), "just checking");\
 162   JavaThread* thread = (JavaThread*) base_thread;        \
 163   JVMCITraceMark jtm("CompilerToVM::" #name);            \
 164   C2V_BLOCK(result_type, name, signature)
 165 
 166 #define C2V_VMENTRY_NULL(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, NULL)
 167 #define C2V_VMENTRY_0(result_type, name, signature) C2V_VMENTRY_(result_type, name, signature, 0)
 168 
 169 // Entry to native method implementation that does not transition
 170 // current thread to '_thread_in_vm'.
 171 #define C2V_VMENTRY_PREFIX(result_type, name, signature) \
 172   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
 173   Thread* base_thread = get_current_thread();
 174 
 175 #define C2V_END }
 176 
 177 #define JNI_THROW(caller, name, msg) do {                                         \
 178     jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg);               \
 179     if (__throw_res != JNI_OK) {                                                  \
 180       tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
 181     }                                                                             \
 182     return;                                                                       \
 183   } while (0);
 184 
 185 #define JNI_THROW_(caller, name, msg, result) do {                                \
 186     jint __throw_res = env->ThrowNew(JNIJVMCI::name::clazz(), msg);               \
 187     if (__throw_res != JNI_OK) {                                                  \
 188       tty->print_cr("Throwing " #name " in " caller " returned %d", __throw_res); \
 189     }                                                                             \
 190     return result;                                                                \
 191   } while (0)
 192 
 193 jobjectArray readConfiguration0(JNIEnv *env, JVMCI_TRAPS);
 194 
 195 C2V_VMENTRY_NULL(jobjectArray, readConfiguration, (JNIEnv* env))
 196   jobjectArray config = readConfiguration0(env, JVMCI_CHECK_NULL);
 197   return config;
 198 }
 199 
 200 C2V_VMENTRY_NULL(jobject, getFlagValue, (JNIEnv* env, jobject c2vm, jobject name_handle))
 201 #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();
 202 #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();
 203   JVMCIObject name = JVMCIENV->wrap(name_handle);
 204   if (name.is_null()) {
 205     JVMCI_THROW_NULL(NullPointerException);
 206   }
 207   const char* cstring = JVMCIENV->as_utf8_string(name);
 208   JVMFlag* flag = JVMFlag::find_flag(cstring, strlen(cstring), /* allow_locked */ true, /* return_flag */ true);
 209   if (flag == NULL) {
 210     return c2vm;
 211   }
 212   if (flag->is_bool()) {
 213     jvalue prim;
 214     prim.z = flag->get_bool();
 215     JVMCIObject box = JVMCIENV->create_box(T_BOOLEAN, &prim, JVMCI_CHECK_NULL);
 216     return JVMCIENV->get_jobject(box);
 217   } else if (flag->is_ccstr()) {
 218     JVMCIObject value = JVMCIENV->create_string(flag->get_ccstr(), JVMCI_CHECK_NULL);
 219     return JVMCIENV->get_jobject(value);
 220   } else if (flag->is_intx()) {
 221     RETURN_BOXED_LONG(flag->get_intx());
 222   } else if (flag->is_int()) {
 223     RETURN_BOXED_LONG(flag->get_int());
 224   } else if (flag->is_uint()) {
 225     RETURN_BOXED_LONG(flag->get_uint());
 226   } else if (flag->is_uint64_t()) {
 227     RETURN_BOXED_LONG(flag->get_uint64_t());
 228   } else if (flag->is_size_t()) {
 229     RETURN_BOXED_LONG(flag->get_size_t());
 230   } else if (flag->is_uintx()) {
 231     RETURN_BOXED_LONG(flag->get_uintx());
 232   } else if (flag->is_double()) {
 233     RETURN_BOXED_DOUBLE(flag->get_double());
 234   } else {
 235     JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
 236   }
 237 #undef RETURN_BOXED_LONG
 238 #undef RETURN_BOXED_DOUBLE
 239 C2V_END
 240 
 241 C2V_VMENTRY_NULL(jobject, getObjectAtAddress, (JNIEnv* env, jobject c2vm, jlong oop_address))
 242   requireInHotSpot("getObjectAtAddress", JVMCI_CHECK_NULL);
 243   if (oop_address == 0) {
 244     JVMCI_THROW_MSG_NULL(InternalError, "Handle must be non-zero");
 245   }
 246   oop obj = *((oopDesc**) oop_address);
 247   if (obj != NULL) {
 248     oopDesc::verify(obj);
 249   }
 250   return JNIHandles::make_local(obj);
 251 C2V_END
 252 
 253 C2V_VMENTRY_NULL(jbyteArray, getBytecode, (JNIEnv* env, jobject, jobject jvmci_method))
 254   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 255 
 256   int code_size = method->code_size();
 257   jbyte* reconstituted_code = NEW_RESOURCE_ARRAY(jbyte, code_size);
 258 
 259   guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
 260   // iterate over all bytecodes and replace non-Java bytecodes
 261 
 262   for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
 263     Bytecodes::Code code = s.code();
 264     Bytecodes::Code raw_code = s.raw_code();
 265     int bci = s.bci();
 266     int len = s.instruction_size();
 267 
 268     // Restore original byte code.
 269     reconstituted_code[bci] =  (jbyte) (s.is_wide()? Bytecodes::_wide : code);
 270     if (len > 1) {
 271       memcpy(reconstituted_code + (bci + 1), s.bcp()+1, len-1);
 272     }
 273 
 274     if (len > 1) {
 275       // Restore the big-endian constant pool indexes.
 276       // Cf. Rewriter::scan_method
 277       switch (code) {
 278         case Bytecodes::_getstatic:
 279         case Bytecodes::_putstatic:
 280         case Bytecodes::_getfield:
 281         case Bytecodes::_putfield:
 282         case Bytecodes::_invokevirtual:
 283         case Bytecodes::_invokespecial:
 284         case Bytecodes::_invokestatic:
 285         case Bytecodes::_invokeinterface:
 286         case Bytecodes::_invokehandle: {
 287           int cp_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
 288           Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
 289           break;
 290         }
 291 
 292         case Bytecodes::_invokedynamic: {
 293           int cp_index = Bytes::get_native_u4((address) reconstituted_code + (bci + 1));
 294           Bytes::put_Java_u4((address) reconstituted_code + (bci + 1), (u4) cp_index);
 295           break;
 296         }
 297 
 298         default:
 299           break;
 300       }
 301 
 302       // Not all ldc byte code are rewritten.
 303       switch (raw_code) {
 304         case Bytecodes::_fast_aldc: {
 305           int cpc_index = reconstituted_code[bci + 1] & 0xff;
 306           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 307           assert(cp_index < method->constants()->length(), "sanity check");
 308           reconstituted_code[bci + 1] = (jbyte) cp_index;
 309           break;
 310         }
 311 
 312         case Bytecodes::_fast_aldc_w: {
 313           int cpc_index = Bytes::get_native_u2((address) reconstituted_code + (bci + 1));
 314           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 315           assert(cp_index < method->constants()->length(), "sanity check");
 316           Bytes::put_Java_u2((address) reconstituted_code + (bci + 1), (u2) cp_index);
 317           break;
 318         }
 319 
 320         default:
 321           break;
 322       }
 323     }
 324   }
 325 
 326   JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
 327   JVMCIENV->copy_bytes_from(reconstituted_code, result, 0, code_size);
 328   return JVMCIENV->get_jbyteArray(result);
 329 C2V_END
 330 
 331 C2V_VMENTRY_0(jint, getExceptionTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
 332   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 333   return method->exception_table_length();
 334 C2V_END
 335 
 336 C2V_VMENTRY_0(jlong, getExceptionTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
 337   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 338   if (method->exception_table_length() == 0) {
 339     return 0L;
 340   }
 341   return (jlong) (address) method->exception_table_start();
 342 C2V_END
 343 
 344 C2V_VMENTRY_NULL(jobject, asResolvedJavaMethod, (JNIEnv* env, jobject, jobject executable_handle))
 345   requireInHotSpot("asResolvedJavaMethod", JVMCI_CHECK_NULL);
 346   oop executable = JNIHandles::resolve(executable_handle);
 347   oop mirror = NULL;
 348   int slot = 0;
 349 
 350   if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) {
 351     mirror = java_lang_reflect_Constructor::clazz(executable);
 352     slot = java_lang_reflect_Constructor::slot(executable);
 353   } else {
 354     assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
 355     mirror = java_lang_reflect_Method::clazz(executable);
 356     slot = java_lang_reflect_Method::slot(executable);
 357   }
 358   Klass* holder = java_lang_Class::as_Klass(mirror);
 359   methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
 360   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 361   return JVMCIENV->get_jobject(result);
 362 }
 363 
 364 C2V_VMENTRY_NULL(jobject, getResolvedJavaMethod, (JNIEnv* env, jobject, jobject base, jlong offset))
 365   methodHandle method;
 366   JVMCIObject base_object = JVMCIENV->wrap(base);
 367   if (base_object.is_null()) {
 368     method = *((Method**)(offset));
 369   } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
 370     Handle obj = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
 371     if (obj->is_a(SystemDictionary::ResolvedMethodName_klass())) {
 372       method = (Method*) (intptr_t) obj->long_field(offset);
 373     } else {
 374       JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", obj->klass()->external_name()));
 375     }
 376   } else if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
 377     method = JVMCIENV->asMethod(base_object);
 378   }
 379   if (method.is_null()) {
 380     JVMCI_THROW_MSG_NULL(IllegalArgumentException, err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
 381   }
 382   assert (method.is_null() || method->is_method(), "invalid read");
 383   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 384   return JVMCIENV->get_jobject(result);
 385 }
 386 
 387 C2V_VMENTRY_NULL(jobject, getConstantPool, (JNIEnv* env, jobject, jobject object_handle))
 388   constantPoolHandle cp;
 389   JVMCIObject object = JVMCIENV->wrap(object_handle);
 390   if (object.is_null()) {
 391     JVMCI_THROW_NULL(NullPointerException);
 392   }
 393   if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(object)) {
 394     cp = JVMCIENV->asMethod(object)->constMethod()->constants();
 395   } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(object)) {
 396     cp = InstanceKlass::cast(JVMCIENV->asKlass(object))->constants();
 397   } else {
 398     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
 399                 err_msg("Unexpected type: %s", JVMCIENV->klass_name(object)));
 400   }
 401   assert(!cp.is_null(), "npe");
 402 
 403   JVMCIObject result = JVMCIENV->get_jvmci_constant_pool(cp, JVMCI_CHECK_NULL);
 404   return JVMCIENV->get_jobject(result);
 405 }
 406 
 407 C2V_VMENTRY_NULL(jobject, getResolvedJavaType0, (JNIEnv* env, jobject, jobject base, jlong offset, jboolean compressed))
 408   JVMCIKlassHandle klass(THREAD);
 409   JVMCIObject base_object = JVMCIENV->wrap(base);
 410   jlong base_address = 0;
 411   if (base_object.is_non_null() && offset == oopDesc::klass_offset_in_bytes()) {
 412     // klass = JVMCIENV->unhandle(base_object)->klass();
 413     if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
 414       Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
 415       klass = base_oop->klass();
 416     } else {
 417       assert(false, "What types are we actually expecting here?");
 418     }
 419   } else if (!compressed) {
 420     if (base_object.is_non_null()) {
 421       if (JVMCIENV->isa_HotSpotResolvedJavaMethodImpl(base_object)) {
 422         base_address = (intptr_t) JVMCIENV->asMethod(base_object);
 423       } else if (JVMCIENV->isa_HotSpotConstantPool(base_object)) {
 424         base_address = (intptr_t) JVMCIENV->asConstantPool(base_object);
 425       } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
 426         base_address = (intptr_t) JVMCIENV->asKlass(base_object);
 427       } else if (JVMCIENV->isa_HotSpotObjectConstantImpl(base_object)) {
 428         Handle base_oop = JVMCIENV->asConstant(base_object, JVMCI_CHECK_NULL);
 429         if (base_oop->is_a(SystemDictionary::Class_klass())) {
 430           base_address = (jlong) (address) base_oop();
 431         }
 432       }
 433       if (base_address == 0) {
 434         JVMCI_THROW_MSG_NULL(IllegalArgumentException,
 435                     err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", JVMCIENV->klass_name(base_object), offset, compressed ? "true" : "false"));
 436       }
 437     }
 438     klass = *((Klass**) (intptr_t) (base_address + offset));
 439   } else {
 440     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
 441                 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s",
 442                         base_object.is_non_null() ? JVMCIENV->klass_name(base_object) : "null",
 443                         offset, compressed ? "true" : "false"));
 444   }
 445   assert (klass == NULL || klass->is_klass(), "invalid read");
 446   JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 447   return JVMCIENV->get_jobject(result);
 448 }
 449 
 450 C2V_VMENTRY_NULL(jobject, findUniqueConcreteMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
 451   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 452   Klass* holder = JVMCIENV->asKlass(jvmci_type);
 453   if (holder->is_interface()) {
 454     JVMCI_THROW_MSG_NULL(InternalError, err_msg("Interface %s should be handled in Java code", holder->external_name()));
 455   }
 456   if (method->can_be_statically_bound()) {
 457     JVMCI_THROW_MSG_NULL(InternalError, err_msg("Effectively static method %s.%s should be handled in Java code", method->method_holder()->external_name(), method->external_name()));
 458   }
 459 
 460   methodHandle ucm;
 461   {
 462     MutexLocker locker(Compile_lock);
 463     ucm = Dependencies::find_unique_concrete_method(holder, method());
 464   }
 465   JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
 466   return JVMCIENV->get_jobject(result);
 467 C2V_END
 468 
 469 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type))
 470   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 471   if (!klass->is_interface()) {
 472     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 473         err_msg("Expected interface type, got %s", klass->external_name()));
 474   }
 475   InstanceKlass* iklass = InstanceKlass::cast(klass);
 476   JVMCIKlassHandle handle(THREAD);
 477   {
 478     // Need Compile_lock around implementor()
 479     MutexLocker locker(Compile_lock);
 480     handle = iklass->implementor();
 481   }
 482   JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
 483   return JVMCIENV->get_jobject(implementor);
 484 C2V_END
 485 
 486 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method))
 487   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 488   return method->is_ignored_by_security_stack_walk();
 489 C2V_END
 490 
 491 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
 492   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 493   constantPoolHandle cp = method->constMethod()->constants();
 494   assert(!cp.is_null(), "npe");
 495   // don't inline method when constant pool contains a CONSTANT_Dynamic
 496   return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
 497 C2V_END
 498 
 499 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method))
 500   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 501   return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
 502 C2V_END
 503 
 504 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method))
 505   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 506   return CompilerOracle::should_inline(method) || method->force_inline();
 507 C2V_END
 508 
 509 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve))
 510   JVMCIObject name = JVMCIENV->wrap(jname);
 511   const char* str = JVMCIENV->as_utf8_string(name);
 512   TempNewSymbol class_name = SymbolTable::new_symbol(str);
 513 
 514   if (class_name->utf8_length() <= 1) {
 515     JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
 516   }
 517 
 518   JVMCIKlassHandle resolved_klass(THREAD);
 519   Klass* accessing_klass = NULL;
 520   Handle class_loader;
 521   Handle protection_domain;
 522   if (accessing_class != NULL) {
 523     accessing_klass = JVMCIENV->asKlass(accessing_class);
 524     class_loader = Handle(THREAD, accessing_klass->class_loader());
 525     protection_domain = Handle(THREAD, accessing_klass->protection_domain());
 526   } else {
 527     // Use the System class loader
 528     class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
 529     JVMCIENV->runtime()->initialize(JVMCIENV);
 530   }
 531 
 532   if (resolve) {
 533     resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
 534     if (resolved_klass == NULL) {
 535       JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
 536     }
 537   } else {
 538     if (class_name->char_at(0) == 'L' &&
 539       class_name->char_at(class_name->utf8_length()-1) == ';') {
 540       // This is a name from a signature.  Strip off the trimmings.
 541       // Call recursive to keep scope of strippedsym.
 542       TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
 543                                                           class_name->utf8_length()-2);
 544       resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
 545     } else if (FieldType::is_array(class_name)) {
 546       FieldArrayInfo fd;
 547       // dimension and object_key in FieldArrayInfo are assigned as a side-effect
 548       // of this call
 549       BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
 550       if (t == T_OBJECT) {
 551         TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
 552                                                             class_name->utf8_length()-2-fd.dimension());
 553         resolved_klass = SystemDictionary::find(strippedsym,
 554                                                              class_loader,
 555                                                              protection_domain,
 556                                                              CHECK_0);
 557         if (!resolved_klass.is_null()) {
 558           resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
 559         }
 560       } else {
 561         resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(t))->array_klass(fd.dimension(), CHECK_0);
 562       }
 563     } else {
 564       resolved_klass = SystemDictionary::find(class_name, class_loader, protection_domain, CHECK_0);
 565     }
 566   }
 567   JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
 568   return JVMCIENV->get_jobject(result);
 569 C2V_END
 570 
 571 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
 572   requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
 573   if (mirror == NULL) {
 574     return NULL;
 575   }
 576   JVMCIKlassHandle klass(THREAD);
 577   klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
 578   if (klass == NULL) {
 579     JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
 580   }
 581   JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 582   return JVMCIENV->get_jobject(result);
 583 }
 584 
 585 C2V_VMENTRY_NULL(jobject, resolveConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 586   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 587   oop result = cp->resolve_constant_at(index, CHECK_NULL);
 588   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(result));
 589 C2V_END
 590 
 591 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 592   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 593   oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
 594   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(result));
 595 C2V_END
 596 
 597 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 598   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 599   return cp->name_and_type_ref_index_at(index);
 600 C2V_END
 601 
 602 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
 603   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 604   JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
 605   return JVMCIENV->get_jobject(sym);
 606 C2V_END
 607 
 608 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
 609   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 610   JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
 611   return JVMCIENV->get_jobject(sym);
 612 C2V_END
 613 
 614 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 615   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 616   return cp->klass_ref_index_at(index);
 617 C2V_END
 618 
 619 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 620   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 621   Klass* klass = cp->klass_at(index, CHECK_NULL);
 622   JVMCIKlassHandle resolved_klass(THREAD, klass);
 623   if (resolved_klass->is_instance_klass()) {
 624     InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
 625     if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
 626       // link_class() should not return here if there is an issue.
 627       JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
 628     }
 629   }
 630   JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
 631   return JVMCIENV->get_jobject(klassObject);
 632 C2V_END
 633 
 634 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 635   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 636   Klass* loading_klass = cp->pool_holder();
 637   bool is_accessible = false;
 638   JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
 639   Symbol* symbol = NULL;
 640   if (klass.is_null()) {
 641     constantTag tag = cp->tag_at(index);
 642     if (tag.is_klass()) {
 643       // The klass has been inserted into the constant pool
 644       // very recently.
 645       klass = cp->resolved_klass_at(index);
 646     } else if (tag.is_symbol()) {
 647       symbol = cp->symbol_at(index);
 648     } else {
 649       assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
 650       symbol = cp->klass_name_at(index);
 651     }
 652   }
 653   JVMCIObject result;
 654   if (!klass.is_null()) {
 655     result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 656   } else {
 657     result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
 658   }
 659   return JVMCIENV->get_jobject(result);
 660 C2V_END
 661 
 662 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 663   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 664   oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
 665   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
 666 C2V_END
 667 
 668 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 669   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 670   InstanceKlass* pool_holder = cp->pool_holder();
 671   Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
 672   methodHandle method = JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder);
 673   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 674   return JVMCIENV->get_jobject(result);
 675 C2V_END
 676 
 677 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 678   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 679   return cp->remap_instruction_operand_from_cache(index);
 680 C2V_END
 681 
 682 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
 683   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 684   Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
 685   fieldDescriptor fd;
 686   LinkInfo link_info(cp, index, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL, CHECK_0);
 687   LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
 688   JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
 689   if (info.is_null() || JVMCIENV->get_length(info) != 3) {
 690     JVMCI_ERROR_NULL("info must not be null and have a length of 3");
 691   }
 692   JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
 693   JVMCIENV->put_int_at(info, 1, fd.offset());
 694   JVMCIENV->put_int_at(info, 2, fd.index());
 695   JVMCIKlassHandle handle(THREAD, fd.field_holder());
 696   JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
 697   return JVMCIENV->get_jobject(field_holder);
 698 C2V_END
 699 
 700 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
 701   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 702   Method* method = JVMCIENV->asMethod(jvmci_method);
 703   if (klass->is_interface()) {
 704     JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
 705   }
 706   if (!method->method_holder()->is_interface()) {
 707     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()));
 708   }
 709   if (!klass->is_instance_klass()) {
 710     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
 711   }
 712   if (!InstanceKlass::cast(klass)->is_linked()) {
 713     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
 714   }
 715   return LinkResolver::vtable_index_of_interface_method(klass, method);
 716 C2V_END
 717 
 718 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
 719   Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
 720   Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
 721   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 722 
 723   Klass* resolved     = method->method_holder();
 724   Symbol* h_name      = method->name();
 725   Symbol* h_signature = method->signature();
 726 
 727   if (MethodHandles::is_signature_polymorphic_method(method())) {
 728       // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
 729       return NULL;
 730   }
 731 
 732   if (method->name() == vmSymbols::clone_name() &&
 733       resolved == SystemDictionary::Object_klass() &&
 734       recv_klass->is_array_klass()) {
 735     // Resolution of the clone method on arrays always returns Object.clone even though that method
 736     // has protected access.  There's some trickery in the access checking to make this all work out
 737     // so it's necessary to pass in the array class as the resolved class to properly trigger this.
 738     // Otherwise it's impossible to resolve the array clone methods through JVMCI.  See
 739     // LinkResolver::check_method_accessability for the matching logic.
 740     resolved = recv_klass;
 741   }
 742 
 743   LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
 744   methodHandle m;
 745   // Only do exact lookup if receiver klass has been linked.  Otherwise,
 746   // the vtable has not been setup, and the LinkResolver will fail.
 747   if (recv_klass->is_array_klass() ||
 748       (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
 749     if (resolved->is_interface()) {
 750       m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
 751     } else {
 752       m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
 753     }
 754   }
 755 
 756   if (m.is_null()) {
 757     // Return NULL if there was a problem with lookup (uninitialized class, etc.)
 758     return NULL;
 759   }
 760 
 761   JVMCIObject result = JVMCIENV->get_jvmci_method(m, JVMCI_CHECK_NULL);
 762   return JVMCIENV->get_jobject(result);
 763 C2V_END
 764 
 765 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
 766   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 767   assert(klass != NULL, "method must not be called for primitive types");
 768   return Dependencies::find_finalizable_subclass(klass) != NULL;
 769 C2V_END
 770 
 771 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
 772   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 773   if (!klass->is_instance_klass()) {
 774     return NULL;
 775   }
 776   InstanceKlass* iklass = InstanceKlass::cast(klass);
 777   JVMCIObject result = JVMCIENV->get_jvmci_method(iklass->class_initializer(), JVMCI_CHECK_NULL);
 778   return JVMCIENV->get_jobject(result);
 779 C2V_END
 780 
 781 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
 782   address target_addr = (address) addr;
 783   if (target_addr != 0x0) {
 784     int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
 785     int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
 786     return MAX2(ABS(off_low), ABS(off_high));
 787   }
 788   return -1;
 789 C2V_END
 790 
 791 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject,  jobject jvmci_method))
 792   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 793   method->set_not_c1_compilable();
 794   method->set_not_c2_compilable();
 795   method->set_dont_inline(true);
 796 C2V_END
 797 
 798 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
 799             jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
 800   HandleMark hm;
 801   JNIHandleMark jni_hm(thread);
 802 
 803   JVMCIObject target_handle = JVMCIENV->wrap(target);
 804   JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
 805   CodeBlob* cb = NULL;
 806   JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
 807   JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
 808 
 809   int speculations_len = JVMCIENV->get_length(speculations_handle);
 810   char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
 811   JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
 812 
 813   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
 814 
 815   TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
 816   bool is_immutable_PIC = JVMCIENV->get_HotSpotCompiledCode_isImmutablePIC(compiled_code_handle) > 0;
 817 
 818   CodeInstaller installer(JVMCIENV, is_immutable_PIC);
 819   JVMCI::CodeInstallResult result = installer.install(compiler,
 820       target_handle,
 821       compiled_code_handle,
 822       cb,
 823       installed_code_handle,
 824       (FailedSpeculation**)(address) failed_speculations_address,
 825       speculations,
 826       speculations_len,
 827       JVMCI_CHECK_0);
 828 
 829   if (PrintCodeCacheOnCompilation) {
 830     stringStream s;
 831     // Dump code cache into a buffer before locking the tty,
 832     {
 833       MutexLocker mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
 834       CodeCache::print_summary(&s, false);
 835     }
 836     ttyLocker ttyl;
 837     tty->print_raw_cr(s.as_string());
 838   }
 839 
 840   if (result != JVMCI::ok) {
 841     assert(cb == NULL, "should be");
 842   } else {
 843     if (installed_code_handle.is_non_null()) {
 844       if (cb->is_nmethod()) {
 845         assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
 846         // Clear the link to an old nmethod first
 847         JVMCIObject nmethod_mirror = installed_code_handle;
 848         JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0);
 849       } else {
 850         assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
 851       }
 852       // Initialize the link to the new code blob
 853       JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
 854     }
 855   }
 856   return result;
 857 C2V_END
 858 
 859 C2V_VMENTRY_0(jint, getMetadata, (JNIEnv *env, jobject, jobject target, jobject compiled_code, jobject metadata))
 860 #if INCLUDE_AOT
 861   HandleMark hm;
 862   assert(JVMCIENV->is_hotspot(), "AOT code is executed only in HotSpot mode");
 863 
 864   JVMCIObject target_handle = JVMCIENV->wrap(target);
 865   JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
 866   JVMCIObject metadata_handle = JVMCIENV->wrap(metadata);
 867 
 868   CodeMetadata code_metadata;
 869 
 870   CodeInstaller installer(JVMCIENV, true /* immutable PIC compilation */);
 871   JVMCI::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, JVMCI_CHECK_0);
 872   if (result != JVMCI::ok) {
 873     return result;
 874   }
 875 
 876   if (code_metadata.get_nr_pc_desc() > 0) {
 877     int size = sizeof(PcDesc) * code_metadata.get_nr_pc_desc();
 878     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 879     JVMCIENV->copy_bytes_from((jbyte*) code_metadata.get_pc_desc(), array, 0, size);
 880     HotSpotJVMCI::HotSpotMetaData::set_pcDescBytes(JVMCIENV, metadata_handle, array);
 881   }
 882 
 883   if (code_metadata.get_scopes_size() > 0) {
 884     int size = code_metadata.get_scopes_size();
 885     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 886     JVMCIENV->copy_bytes_from((jbyte*) code_metadata.get_scopes_desc(), array, 0, size);
 887     HotSpotJVMCI::HotSpotMetaData::set_scopesDescBytes(JVMCIENV, metadata_handle, array);
 888   }
 889 
 890   RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
 891   int size = (int) reloc_buffer->size();
 892   JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 893   JVMCIENV->copy_bytes_from((jbyte*) reloc_buffer->begin(), array, 0, size);
 894   HotSpotJVMCI::HotSpotMetaData::set_relocBytes(JVMCIENV, metadata_handle, array);
 895 
 896   const OopMapSet* oopMapSet = installer.oopMapSet();
 897   {
 898     ResourceMark mark;
 899     ImmutableOopMapBuilder builder(oopMapSet);
 900     int size = builder.heap_size();
 901     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 902     builder.generate_into((address) HotSpotJVMCI::resolve(array)->byte_at_addr(0));
 903     HotSpotJVMCI::HotSpotMetaData::set_oopMaps(JVMCIENV, metadata_handle, array);
 904   }
 905 
 906   AOTOopRecorder* recorder = code_metadata.get_oop_recorder();
 907 
 908   int nr_meta_refs = recorder->nr_meta_refs();
 909   JVMCIObjectArray metadataArray = JVMCIENV->new_Object_array(nr_meta_refs, JVMCI_CHECK_(JVMCI::cache_full));
 910   for (int i = 0; i < nr_meta_refs; ++i) {
 911     jobject element = recorder->meta_element(i);
 912     if (element == NULL) {
 913       return JVMCI::cache_full;
 914     }
 915     JVMCIENV->put_object_at(metadataArray, i, JVMCIENV->wrap(element));
 916   }
 917   HotSpotJVMCI::HotSpotMetaData::set_metadata(JVMCIENV, metadata_handle, metadataArray);
 918 
 919   ExceptionHandlerTable* handler = code_metadata.get_exception_table();
 920   int table_size = handler->size_in_bytes();
 921   JVMCIPrimitiveArray exceptionArray = JVMCIENV->new_byteArray(table_size, JVMCI_CHECK_(JVMCI::cache_full));
 922   if (table_size > 0) {
 923     handler->copy_bytes_to((address) HotSpotJVMCI::resolve(exceptionArray)->byte_at_addr(0));
 924   }
 925   HotSpotJVMCI::HotSpotMetaData::set_exceptionBytes(JVMCIENV, metadata_handle, exceptionArray);
 926 
 927   ImplicitExceptionTable* implicit = code_metadata.get_implicit_exception_table();
 928   int implicit_table_size = implicit->size_in_bytes();
 929   JVMCIPrimitiveArray implicitExceptionArray = JVMCIENV->new_byteArray(implicit_table_size, JVMCI_CHECK_(JVMCI::cache_full));
 930   if (implicit_table_size > 0) {
 931     implicit->copy_bytes_to((address) HotSpotJVMCI::resolve(implicitExceptionArray)->byte_at_addr(0), implicit_table_size);
 932   }
 933   HotSpotJVMCI::HotSpotMetaData::set_implicitExceptionBytes(JVMCIENV, metadata_handle, implicitExceptionArray);
 934 
 935   return result;
 936 #else
 937   JVMCI_THROW_MSG_0(InternalError, "unimplemented");
 938 #endif
 939 C2V_END
 940 
 941 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
 942   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
 943   CompilerStatistics* stats = compiler->stats();
 944   stats->_standard.reset();
 945   stats->_osr.reset();
 946 C2V_END
 947 
 948 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
 949   HandleMark hm;
 950 
 951   if (installedCode == NULL) {
 952     JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
 953   }
 954 
 955   JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
 956   CodeBlob* cb = JVMCIENV->asCodeBlob(installedCodeObject);
 957   if (cb == NULL) {
 958     return NULL;
 959   }
 960 
 961   // We don't want the stringStream buffer to resize during disassembly as it
 962   // uses scoped resource memory. If a nested function called during disassembly uses
 963   // a ResourceMark and the buffer expands within the scope of the mark,
 964   // the buffer becomes garbage when that scope is exited. Experience shows that
 965   // the disassembled code is typically about 10x the code size so a fixed buffer
 966   // sized to 20x code size plus a fixed amount for header info should be sufficient.
 967   int bufferSize = cb->code_size() * 20 + 1024;
 968   char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
 969   stringStream st(buffer, bufferSize);
 970   if (cb->is_nmethod()) {
 971     nmethod* nm = (nmethod*) cb;
 972     if (!nm->is_alive()) {
 973       return NULL;
 974     }
 975   }
 976   Disassembler::decode(cb, &st);
 977   if (st.size() <= 0) {
 978     return NULL;
 979   }
 980 
 981   JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
 982   return JVMCIENV->get_jobject(result);
 983 C2V_END
 984 
 985 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
 986   HandleMark hm;
 987 
 988   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 989   JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
 990   return JVMCIENV->get_jobject(element);
 991 C2V_END
 992 
 993 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
 994   // The incoming arguments array would have to contain JavaConstants instead of regular objects
 995   // and the return value would have to be wrapped as a JavaConstant.
 996   requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
 997 
 998   HandleMark hm;
 999 
1000   JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1001   nmethod* nm = JVMCIENV->asNmethod(nmethod_mirror);
1002   if (nm == NULL) {
1003     JVMCI_THROW_NULL(InvalidInstalledCodeException);
1004   }
1005   methodHandle mh = nm->method();
1006   Symbol* signature = mh->signature();
1007   JavaCallArguments jca(mh->size_of_parameters());
1008 
1009   JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1010   JavaValue result(jap.get_ret_type());
1011   jca.set_alternative_target(nm);
1012   JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1013 
1014   if (jap.get_ret_type() == T_VOID) {
1015     return NULL;
1016   } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
1017     return JNIHandles::make_local((oop) result.get_jobject());
1018   } else {
1019     jvalue *value = (jvalue *) result.get_value_addr();
1020     // Narrow the value down if required (Important on big endian machines)
1021     switch (jap.get_ret_type()) {
1022       case T_BOOLEAN:
1023        value->z = (jboolean) value->i;
1024        break;
1025       case T_BYTE:
1026        value->b = (jbyte) value->i;
1027        break;
1028       case T_CHAR:
1029        value->c = (jchar) value->i;
1030        break;
1031       case T_SHORT:
1032        value->s = (jshort) value->i;
1033        break;
1034       default:
1035         break;
1036     }
1037     JVMCIObject o = JVMCIENV->create_box(jap.get_ret_type(), value, JVMCI_CHECK_NULL);
1038     return JVMCIENV->get_jobject(o);
1039   }
1040 C2V_END
1041 
1042 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method))
1043   Method* method = JVMCIENV->asMethod(jvmci_method);
1044   if (!method->has_linenumber_table()) {
1045     return NULL;
1046   }
1047   u2 num_entries = 0;
1048   CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1049   while (streamForSize.read_pair()) {
1050     num_entries++;
1051   }
1052 
1053   CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1054   JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1055 
1056   int i = 0;
1057   jlong value;
1058   while (stream.read_pair()) {
1059     value = ((long) stream.bci());
1060     JVMCIENV->put_long_at(result, i, value);
1061     value = ((long) stream.line());
1062     JVMCIENV->put_long_at(result, i + 1, value);
1063     i += 2;
1064   }
1065 
1066   return (jlongArray) JVMCIENV->get_jobject(result);
1067 C2V_END
1068 
1069 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1070   Method* method = JVMCIENV->asMethod(jvmci_method);
1071   if (!method->has_localvariable_table()) {
1072     return 0;
1073   }
1074   return (jlong) (address) method->localvariable_table_start();
1075 C2V_END
1076 
1077 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1078   Method* method = JVMCIENV->asMethod(jvmci_method);
1079   return method->localvariable_table_length();
1080 C2V_END
1081 
1082 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1083   Method* method = JVMCIENV->asMethod(jvmci_method);
1084   MethodCounters* mcs = method->method_counters();
1085   if (mcs != NULL) {
1086     mcs->clear_counters();
1087   }
1088   NOT_PRODUCT(method->set_compiled_invocation_count(0));
1089 
1090   CompiledMethod* code = method->code();
1091   if (code != NULL) {
1092     code->make_not_entrant();
1093   }
1094 
1095   MethodData* method_data = method->method_data();
1096   if (method_data == NULL) {
1097     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1098     method_data = MethodData::allocate(loader_data, method, CHECK);
1099     method->set_method_data(method_data);
1100   } else {
1101     method_data->initialize();
1102   }
1103 C2V_END
1104 
1105 
1106 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod))
1107   JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1108   JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK);
1109 C2V_END
1110 
1111 C2V_VMENTRY_NULL(jobject, readUncompressedOop, (JNIEnv* env, jobject, jlong addr))
1112   oop ret = RawAccess<>::oop_load((oop*)(address)addr);
1113   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(ret));
1114  C2V_END
1115 
1116 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1117   // Returns a zero length array if counters aren't enabled
1118   JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1119   if (JVMCICounterSize > 0) {
1120     jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1121     JavaThread::collect_counters(temp_array, JVMCICounterSize);
1122     JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1123   }
1124   return (jlongArray) JVMCIENV->get_jobject(array);
1125 C2V_END
1126 
1127 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1128   return (jint) JVMCICounterSize;
1129 C2V_END
1130 
1131 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1132   return JavaThread::resize_all_jvmci_counters(new_size);
1133 C2V_END
1134 
1135 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1136   HandleMark hm;
1137   if (jvmci_method == NULL) {
1138     JVMCI_THROW_0(NullPointerException);
1139   }
1140   Method* method = JVMCIENV->asMethod(jvmci_method);
1141   if (entry_bci >= method->code_size() || entry_bci < -1) {
1142     JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1143   }
1144   return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1145 C2V_END
1146 
1147 
1148 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1149   MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1150   return mdo != NULL && mdo->is_mature();
1151 C2V_END
1152 
1153 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1154   Method* method = JVMCIENV->asMethod(jvmci_method);
1155   return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1156 C2V_END
1157 
1158 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1159   JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1160   return JVMCIENV->get_jobject(sym);
1161 C2V_END
1162 
1163 bool matches(jobjectArray methods, Method* method, JVMCIEnv* JVMCIENV) {
1164   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1165 
1166   for (int i = 0; i < methods_oop->length(); i++) {
1167     oop resolved = methods_oop->obj_at(i);
1168     if ((resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) && HotSpotJVMCI::asMethod(JVMCIENV, resolved) == method) {
1169       return true;
1170     }
1171   }
1172   return false;
1173 }
1174 
1175 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1176   CallInfo callinfo;
1177   Handle receiver = args->receiver();
1178   Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1179   LinkInfo link_info(spec_klass, name, signature);
1180   LinkResolver::resolve_interface_call(
1181           callinfo, receiver, recvrKlass, link_info, true, CHECK);
1182   methodHandle method = callinfo.selected_method();
1183   assert(method.not_null(), "should have thrown exception");
1184 
1185   // Invoke the method
1186   JavaCalls::call(result, method, args, CHECK);
1187 }
1188 
1189 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1190 
1191   if (!thread->has_last_Java_frame()) {
1192     return NULL;
1193   }
1194   Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1195 
1196   requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1197 
1198   HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1199   Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1200 
1201   StackFrameStream fst(thread);
1202   jobjectArray methods = initial_methods;
1203 
1204   int frame_number = 0;
1205   vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1206 
1207   while (true) {
1208     // look for the given method
1209     bool realloc_called = false;
1210     while (true) {
1211       StackValueCollection* locals = NULL;
1212       if (vf->is_compiled_frame()) {
1213         // compiled method frame
1214         compiledVFrame* cvf = compiledVFrame::cast(vf);
1215         if (methods == NULL || matches(methods, cvf->method(), JVMCIENV)) {
1216           if (initialSkip > 0) {
1217             initialSkip--;
1218           } else {
1219             ScopeDesc* scope = cvf->scope();
1220             // native wrappers do not have a scope
1221             if (scope != NULL && scope->objects() != NULL) {
1222               GrowableArray<ScopeValue*>* objects;
1223               if (!realloc_called) {
1224                 objects = scope->objects();
1225               } else {
1226                 // some object might already have been re-allocated, only reallocate the non-allocated ones
1227                 objects = new GrowableArray<ScopeValue*>(scope->objects()->length());
1228                 for (int i = 0; i < scope->objects()->length(); i++) {
1229                   ObjectValue* sv = (ObjectValue*) scope->objects()->at(i);
1230                   if (sv->value().is_null()) {
1231                     objects->append(sv);
1232                   }
1233                 }
1234               }
1235               bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), fst.register_map(), objects, CHECK_NULL);
1236               Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1237               realloc_called = true;
1238 
1239               GrowableArray<ScopeValue*>* local_values = scope->locals();
1240               assert(local_values != NULL, "NULL locals");
1241               typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1242               typeArrayHandle array(THREAD, array_oop);
1243               for (int i = 0; i < local_values->length(); i++) {
1244                 ScopeValue* value = local_values->at(i);
1245                 if (value->is_object()) {
1246                   array->bool_at_put(i, true);
1247                 }
1248               }
1249               HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), array());
1250             } else {
1251               HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1252             }
1253 
1254             locals = cvf->locals();
1255             HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), cvf->bci());
1256             JVMCIObject method = JVMCIENV->get_jvmci_method(cvf->method(), JVMCI_CHECK_NULL);
1257             HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1258           }
1259         }
1260       } else if (vf->is_interpreted_frame()) {
1261         // interpreted method frame
1262         interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1263         if (methods == NULL || matches(methods, ivf->method(), JVMCIENV)) {
1264           if (initialSkip > 0) {
1265             initialSkip--;
1266           } else {
1267             locals = ivf->locals();
1268             HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), ivf->bci());
1269             JVMCIObject method = JVMCIENV->get_jvmci_method(ivf->method(), JVMCI_CHECK_NULL);
1270             HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1271             HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1272           }
1273         }
1274       }
1275 
1276       // locals != NULL means that we found a matching frame and result is already partially initialized
1277       if (locals != NULL) {
1278         methods = match_methods;
1279         HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1280         HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) fst.current()->sp());
1281         HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1282 
1283         // initialize the locals array
1284         objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1285         objArrayHandle array(THREAD, array_oop);
1286         for (int i = 0; i < locals->size(); i++) {
1287           StackValue* var = locals->at(i);
1288           if (var->type() == T_OBJECT) {
1289             array->obj_at_put(i, locals->at(i)->get_obj()());
1290           }
1291         }
1292         HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1293         HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1294 
1295         JavaValue result(T_OBJECT);
1296         JavaCallArguments args(visitor);
1297         args.push_oop(frame_reference);
1298         call_interface(&result, HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1299         if (result.get_jobject() != NULL) {
1300           return JNIHandles::make_local(thread, (oop) result.get_jobject());
1301         }
1302         assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1303         if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1304           // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1305           intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1306           fst = StackFrameStream(thread);
1307           while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1308             fst.next();
1309           }
1310           if (fst.current()->sp() != stack_pointer) {
1311             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1312           }
1313           vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1314           if (!vf->is_compiled_frame()) {
1315             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1316           }
1317           for (int i = 0; i < frame_number; i++) {
1318             if (vf->is_top()) {
1319               THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1320             }
1321             vf = vf->sender();
1322             assert(vf->is_compiled_frame(), "Wrong frame type");
1323           }
1324         }
1325         frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1326         HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1327       }
1328 
1329       if (vf->is_top()) {
1330         break;
1331       }
1332       frame_number++;
1333       vf = vf->sender();
1334     } // end of vframe loop
1335 
1336     if (fst.is_done()) {
1337       break;
1338     }
1339     fst.next();
1340     vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1341     frame_number = 0;
1342   } // end of frame loop
1343 
1344   // the end was reached without finding a matching method
1345   return NULL;
1346 C2V_END
1347 
1348 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1349   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1350   CallInfo callInfo;
1351   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1352   ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1353   cp_cache_entry->set_dynamic_call(cp, callInfo);
1354 C2V_END
1355 
1356 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1357   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1358   Klass* holder = cp->klass_ref_at(index, CHECK);
1359   Symbol* name = cp->name_ref_at(index);
1360   if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1361     CallInfo callInfo;
1362     LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1363     ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1364     cp_cache_entry->set_method_handle(cp, callInfo);
1365   }
1366 C2V_END
1367 
1368 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1369   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1370   ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1371   if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1372     // MethodHandle.invoke* --> LambdaForm?
1373     ResourceMark rm;
1374 
1375     LinkInfo link_info(cp, index, CATCH);
1376 
1377     Klass* resolved_klass = link_info.resolved_klass();
1378 
1379     Symbol* name_sym = cp->name_ref_at(index);
1380 
1381     vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1382     vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1383 
1384     methodHandle adapter_method(cp_cache_entry->f1_as_method());
1385 
1386     methodHandle resolved_method(adapter_method);
1387 
1388     // Can we treat it as a regular invokevirtual?
1389     if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1390       vmassert(!resolved_method->is_static(),"!");
1391       vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1392       vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1393       vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1394 
1395       methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1396       vmassert(m == resolved_method, "!!");
1397       return -1;
1398     }
1399 
1400     return Bytecodes::_invokevirtual;
1401   }
1402   if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1403     return Bytecodes::_invokedynamic;
1404   }
1405   return -1;
1406 C2V_END
1407 
1408 
1409 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1410   JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1411   JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1412   JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1413   JVMCIENV->put_object_at(holders, 0, mh);
1414   JVMCIENV->put_object_at(holders, 1, vh);
1415   return JVMCIENV->get_jobject(holders);
1416 C2V_END
1417 
1418 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1419   //see compute_recording_non_safepoints in debugInfroRec.cpp
1420   if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1421     return true;
1422   }
1423   return DebugNonSafepoints;
1424 C2V_END
1425 
1426 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1427 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1428   JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1429   if (hs_frame.is_null()) {
1430     JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1431   }
1432 
1433   requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1434 
1435   JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1436 
1437   // look for the given stack frame
1438   StackFrameStream fst(thread);
1439   intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1440   while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1441     fst.next();
1442   }
1443   if (fst.current()->sp() != stack_pointer) {
1444     JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1445   }
1446 
1447   if (invalidate) {
1448     if (!fst.current()->is_compiled_frame()) {
1449       JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1450     }
1451     assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1452     ((nmethod*) fst.current()->cb())->make_not_entrant();
1453   }
1454   Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1455   // look for the frame again as it has been updated by deopt (pc, deopt state...)
1456   StackFrameStream fstAfterDeopt(thread);
1457   while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1458     fstAfterDeopt.next();
1459   }
1460   if (fstAfterDeopt.current()->sp() != stack_pointer) {
1461     JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1462   }
1463 
1464   vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1465   if (!vf->is_compiled_frame()) {
1466     JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1467   }
1468 
1469   GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1470   while (true) {
1471     assert(vf->is_compiled_frame(), "Wrong frame type");
1472     virtualFrames->push(compiledVFrame::cast(vf));
1473     if (vf->is_top()) {
1474       break;
1475     }
1476     vf = vf->sender();
1477   }
1478 
1479   int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1480   if (last_frame_number >= virtualFrames->length()) {
1481     JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1482   }
1483 
1484   // Reallocate the non-escaping objects and restore their fields.
1485   assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1486   GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1487 
1488   if (objects == NULL) {
1489     // no objects to materialize
1490     return;
1491   }
1492 
1493   bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1494   Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1495 
1496   for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1497     compiledVFrame* cvf = virtualFrames->at(frame_index);
1498 
1499     GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1500     StackValueCollection* locals = cvf->locals();
1501     if (locals != NULL) {
1502       for (int i2 = 0; i2 < locals->size(); i2++) {
1503         StackValue* var = locals->at(i2);
1504         if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1505           jvalue val;
1506           val.l = (jobject) locals->at(i2)->get_obj()();
1507           cvf->update_local(T_OBJECT, i2, val);
1508         }
1509       }
1510     }
1511 
1512     GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1513     StackValueCollection* expressions = cvf->expressions();
1514     if (expressions != NULL) {
1515       for (int i2 = 0; i2 < expressions->size(); i2++) {
1516         StackValue* var = expressions->at(i2);
1517         if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1518           jvalue val;
1519           val.l = (jobject) expressions->at(i2)->get_obj()();
1520           cvf->update_stack(T_OBJECT, i2, val);
1521         }
1522       }
1523     }
1524 
1525     GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1526     GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1527     if (monitors != NULL) {
1528       for (int i2 = 0; i2 < monitors->length(); i2++) {
1529         cvf->update_monitor(i2, monitors->at(i2));
1530       }
1531     }
1532   }
1533 
1534   // all locals are materialized by now
1535   JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL);
1536   // update the locals array
1537   JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1538   StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1539   for (int i = 0; i < locals->size(); i++) {
1540     StackValue* var = locals->at(i);
1541     if (var->type() == T_OBJECT) {
1542       JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1543     }
1544   }
1545   HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1546 C2V_END
1547 
1548 // Creates a scope where the current thread is attached and detached
1549 // from HotSpot if it wasn't already attached when entering the scope.
1550 extern "C" void jio_printf(const char *fmt, ...);
1551 class AttachDetach : public StackObj {
1552  public:
1553   bool _attached;
1554   AttachDetach(JNIEnv* env, Thread* current_thread) {
1555     if (current_thread == NULL) {
1556       extern struct JavaVM_ main_vm;
1557       JNIEnv* hotspotEnv;
1558       jint res = main_vm.AttachCurrentThread((void**)&hotspotEnv, NULL);
1559       _attached = res == JNI_OK;
1560       static volatile int report_attach_error = 0;
1561       if (res != JNI_OK && report_attach_error == 0 && Atomic::cmpxchg(1, &report_attach_error, 0) == 0) {
1562         // Only report an attach error once
1563         jio_printf("Warning: attaching current thread to VM failed with %d (future attach errors are suppressed)\n", res);
1564       }
1565     } else {
1566       _attached = false;
1567     }
1568   }
1569   ~AttachDetach() {
1570     if (_attached && get_current_thread() != NULL) {
1571       extern struct JavaVM_ main_vm;
1572       jint res = main_vm.DetachCurrentThread();
1573       static volatile int report_detach_error = 0;
1574       if (res != JNI_OK && report_detach_error == 0 && Atomic::cmpxchg(1, &report_detach_error, 0) == 0) {
1575         // Only report an attach error once
1576         jio_printf("Warning: detaching current thread from VM failed with %d (future attach errors are suppressed)\n", res);
1577       }
1578     }
1579   }
1580 };
1581 
1582 C2V_VMENTRY_PREFIX(jint, writeDebugOutput, (JNIEnv* env, jobject, jbyteArray bytes, jint offset, jint length, bool flush, bool can_throw))
1583   AttachDetach ad(env, base_thread);
1584   bool use_tty = true;
1585   if (base_thread == NULL) {
1586     if (!ad._attached) {
1587       // Can only use tty if the current thread is attached
1588       return 0;
1589     }
1590     base_thread = get_current_thread();
1591   }
1592   JVMCITraceMark jtm("writeDebugOutput");
1593   assert(base_thread->is_Java_thread(), "just checking");
1594   JavaThread* thread = (JavaThread*) base_thread;
1595   C2V_BLOCK(void, writeDebugOutput, (JNIEnv* env, jobject, jbyteArray bytes, jint offset, jint length))
1596   if (bytes == NULL) {
1597     if (can_throw) {
1598       JVMCI_THROW_0(NullPointerException);
1599     }
1600     return -1;
1601   }
1602   JVMCIPrimitiveArray array = JVMCIENV->wrap(bytes);
1603 
1604   // Check if offset and length are non negative.
1605   if (offset < 0 || length < 0) {
1606     if (can_throw) {
1607       JVMCI_THROW_0(ArrayIndexOutOfBoundsException);
1608     }
1609     return -2;
1610   }
1611   // Check if the range is valid.
1612   int array_length = JVMCIENV->get_length(array);
1613   if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array_length)) {
1614     if (can_throw) {
1615       JVMCI_THROW_0(ArrayIndexOutOfBoundsException);
1616     }
1617     return -2;
1618   }
1619   jbyte buffer[O_BUFLEN];
1620   while (length > 0) {
1621     int copy_len = MIN2(length, (jint)O_BUFLEN);
1622     JVMCIENV->copy_bytes_to(array, buffer, offset, copy_len);
1623     tty->write((char*) buffer, copy_len);
1624     length -= O_BUFLEN;
1625     offset += O_BUFLEN;
1626   }
1627   if (flush) {
1628     tty->flush();
1629   }
1630   return 0;
1631 C2V_END
1632 
1633 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv* env, jobject))
1634   tty->flush();
1635 C2V_END
1636 
1637 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position))
1638   MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1639   ProfileData* profile_data = mdo->data_at(position);
1640   if (mdo->is_valid(profile_data)) {
1641     return profile_data->size_in_bytes();
1642   }
1643   DataLayout* data    = mdo->extra_data_base();
1644   DataLayout* end   = mdo->extra_data_limit();
1645   for (;; data = mdo->next_extra(data)) {
1646     assert(data < end, "moved past end of extra data");
1647     profile_data = data->data_in();
1648     if (mdo->dp_to_di(profile_data->dp()) == position) {
1649       return profile_data->size_in_bytes();
1650     }
1651   }
1652   JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1653 C2V_END
1654 
1655 C2V_VMENTRY_0(jlong, getFingerprint, (JNIEnv* env, jobject, jlong metaspace_klass))
1656 #if INCLUDE_AOT
1657   Klass *k = (Klass*) (address) metaspace_klass;
1658   if (k->is_instance_klass()) {
1659     return InstanceKlass::cast(k)->get_stored_fingerprint();
1660   } else {
1661     return 0;
1662   }
1663 #else
1664   JVMCI_THROW_MSG_0(InternalError, "unimplemented");
1665 #endif
1666 C2V_END
1667 
1668 C2V_VMENTRY_NULL(jobject, getHostClass, (JNIEnv* env, jobject, jobject jvmci_type))
1669   InstanceKlass* k = InstanceKlass::cast(JVMCIENV->asKlass(jvmci_type));
1670   InstanceKlass* host = k->unsafe_anonymous_host();
1671   JVMCIKlassHandle handle(THREAD, host);
1672   JVMCIObject result = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
1673   return JVMCIENV->get_jobject(result);
1674 C2V_END
1675 
1676 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type))
1677   if (jvmci_type == NULL) {
1678     JVMCI_THROW_0(NullPointerException);
1679   }
1680 
1681   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1682   if (klass == NULL) {
1683     JVMCI_THROW_0(NullPointerException);
1684   }
1685   if (!klass->is_instance_klass()) {
1686     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1687   }
1688   InstanceKlass* iklass = InstanceKlass::cast(klass);
1689 
1690   // Regular instance klass, fill in all local interfaces
1691   int size = iklass->local_interfaces()->length();
1692   JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1693   for (int index = 0; index < size; index++) {
1694     JVMCIKlassHandle klass(THREAD);
1695     Klass* k = iklass->local_interfaces()->at(index);
1696     klass = k;
1697     JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1698     JVMCIENV->put_object_at(interfaces, index, type);
1699   }
1700   return JVMCIENV->get_jobject(interfaces);
1701 C2V_END
1702 
1703 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type))
1704   if (jvmci_type == NULL) {
1705     JVMCI_THROW_0(NullPointerException);
1706   }
1707 
1708   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1709   oop mirror = klass->java_mirror();
1710   if (java_lang_Class::is_primitive(mirror) ||
1711       !java_lang_Class::as_Klass(mirror)->is_array_klass()) {
1712     return NULL;
1713   }
1714 
1715   oop component_mirror = java_lang_Class::component_mirror(mirror);
1716   if (component_mirror == NULL) {
1717     return NULL;
1718   }
1719   Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1720   if (component_klass != NULL) {
1721     JVMCIKlassHandle klass_handle(THREAD);
1722     klass_handle = component_klass;
1723     JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1724     return JVMCIENV->get_jobject(result);
1725   }
1726   BasicType type = java_lang_Class::primitive_type(component_mirror);
1727   JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1728   return JVMCIENV->get_jobject(result);
1729 C2V_END
1730 
1731 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type))
1732   if (jvmci_type == NULL) {
1733     JVMCI_THROW(NullPointerException);
1734   }
1735 
1736   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1737   if (klass != NULL && klass->should_be_initialized()) {
1738     InstanceKlass* k = InstanceKlass::cast(klass);
1739     k->initialize(CHECK);
1740   }
1741 C2V_END
1742 
1743 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1744   if (bytecode_frame_handle == NULL) {
1745     JVMCI_THROW_0(NullPointerException);
1746   }
1747 
1748   JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1749   JVMCIObject bytecode_frame = top_bytecode_frame;
1750   int size = 0;
1751   int callee_parameters = 0;
1752   int callee_locals = 0;
1753   Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1754   int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1755 
1756   while (bytecode_frame.is_non_null()) {
1757     int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1758     int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1759     bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1760     Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1761 
1762     int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1763                                                                  temps + callee_parameters,
1764                                                                  extra_args,
1765                                                                  locks,
1766                                                                  callee_parameters,
1767                                                                  callee_locals,
1768                                                                  is_top_frame);
1769     size += frame_size;
1770 
1771     callee_parameters = method->size_of_parameters();
1772     callee_locals = method->max_locals();
1773     extra_args = 0;
1774     bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1775   }
1776   return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1777 C2V_END
1778 
1779 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1780   Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1781   if (lambda_form->is_a(SystemDictionary::LambdaForm_klass())) {
1782     TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode");
1783     JavaValue result(T_VOID);
1784     JavaCalls::call_special(&result, lambda_form, SystemDictionary::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1785   } else {
1786     JVMCI_THROW_MSG(IllegalArgumentException,
1787                     err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1788   }
1789 C2V_END
1790 
1791 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1792   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1793   return obj->identity_hash();
1794 C2V_END
1795 
1796 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1797   Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1798   if (!java_lang_String::is_instance(str())) {
1799     return false;
1800   }
1801   int len;
1802   jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_0);
1803   return (StringTable::lookup(name, len) != NULL);
1804 C2V_END
1805 
1806 
1807 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1808   if (object == NULL) {
1809     JVMCI_THROW_0(NullPointerException);
1810   }
1811   Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1812   BasicType type = java_lang_boxing_object::basic_type(box());
1813   jvalue result;
1814   if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1815     return NULL;
1816   }
1817   JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1818   return JVMCIENV->get_jobject(boxResult);
1819 C2V_END
1820 
1821 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1822   if (object == NULL) {
1823     JVMCI_THROW_0(NullPointerException);
1824   }
1825   JVMCIObject box = JVMCIENV->wrap(object);
1826   BasicType type = JVMCIENV->get_box_type(box);
1827   if (type == T_ILLEGAL) {
1828     return NULL;
1829   }
1830   jvalue value = JVMCIENV->get_boxed_value(type, box);
1831   JavaValue box_result(T_OBJECT);
1832   JavaCallArguments jargs;
1833   Klass* box_klass = NULL;
1834   Symbol* box_signature = NULL;
1835 #define BOX_CASE(bt, v, argtype, name)           \
1836   case bt: \
1837     jargs.push_##argtype(value.v); \
1838     box_klass = SystemDictionary::name##_klass(); \
1839     box_signature = vmSymbols::name##_valueOf_signature(); \
1840     break
1841 
1842   switch (type) {
1843     BOX_CASE(T_BOOLEAN, z, int, Boolean);
1844     BOX_CASE(T_BYTE, b, int, Byte);
1845     BOX_CASE(T_CHAR, c, int, Character);
1846     BOX_CASE(T_SHORT, s, int, Short);
1847     BOX_CASE(T_INT, i, int, Integer);
1848     BOX_CASE(T_LONG, j, long, Long);
1849     BOX_CASE(T_FLOAT, f, float, Float);
1850     BOX_CASE(T_DOUBLE, d, double, Double);
1851     default:
1852       ShouldNotReachHere();
1853   }
1854 #undef BOX_CASE
1855 
1856   JavaCalls::call_static(&box_result,
1857                          box_klass,
1858                          vmSymbols::valueOf_name(),
1859                          box_signature, &jargs, CHECK_NULL);
1860   oop hotspot_box = (oop) box_result.get_jobject();
1861   JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
1862   return JVMCIENV->get_jobject(result);
1863 C2V_END
1864 
1865 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder))
1866   if (holder == NULL) {
1867     JVMCI_THROW_0(NullPointerException);
1868   }
1869   Klass* klass = JVMCIENV->asKlass(holder);
1870   if (!klass->is_instance_klass()) {
1871     JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1872     return JVMCIENV->get_jobjectArray(methods);
1873   }
1874 
1875   InstanceKlass* iklass = InstanceKlass::cast(klass);
1876   // Ensure class is linked
1877   iklass->link_class(CHECK_NULL);
1878 
1879   GrowableArray<Method*> constructors_array;
1880   for (int i = 0; i < iklass->methods()->length(); i++) {
1881     Method* m = iklass->methods()->at(i);
1882     if (m->is_initializer() && !m->is_static()) {
1883       constructors_array.append(m);
1884     }
1885   }
1886   JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1887   for (int i = 0; i < constructors_array.length(); i++) {
1888     JVMCIObject method = JVMCIENV->get_jvmci_method(constructors_array.at(i), JVMCI_CHECK_NULL);
1889     JVMCIENV->put_object_at(methods, i, method);
1890   }
1891   return JVMCIENV->get_jobjectArray(methods);
1892 C2V_END
1893 
1894 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1895   if (holder == NULL) {
1896     JVMCI_THROW_0(NullPointerException);
1897   }
1898   Klass* klass = JVMCIENV->asKlass(holder);
1899   if (!klass->is_instance_klass()) {
1900     JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1901     return JVMCIENV->get_jobjectArray(methods);
1902   }
1903 
1904   InstanceKlass* iklass = InstanceKlass::cast(klass);
1905   // Ensure class is linked
1906   iklass->link_class(CHECK_NULL);
1907 
1908   GrowableArray<Method*> methods_array;
1909   for (int i = 0; i < iklass->methods()->length(); i++) {
1910     Method* m = iklass->methods()->at(i);
1911     if (!m->is_initializer() && !m->is_overpass()) {
1912       methods_array.append(m);
1913     }
1914   }
1915   JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1916   for (int i = 0; i < methods_array.length(); i++) {
1917     JVMCIObject method = JVMCIENV->get_jvmci_method(methods_array.at(i), JVMCI_CHECK_NULL);
1918     JVMCIENV->put_object_at(methods, i, method);
1919   }
1920   return JVMCIENV->get_jobjectArray(methods);
1921 C2V_END
1922 
1923 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject field, jboolean is_volatile))
1924   if (object == NULL || field == NULL) {
1925     JVMCI_THROW_0(NullPointerException);
1926   }
1927   JVMCIObject field_object = JVMCIENV->wrap(field);
1928   JVMCIObject java_type = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_type(field_object);
1929   int modifiers = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_modifiers(field_object);
1930   Klass* holder = JVMCIENV->asKlass(JVMCIENV->get_HotSpotResolvedJavaFieldImpl_holder(field_object));
1931   if (!holder->is_instance_klass()) {
1932     JVMCI_THROW_MSG_0(InternalError, err_msg("Holder %s must be instance klass", holder->external_name()));
1933   }
1934   InstanceKlass* ik = InstanceKlass::cast(holder);
1935   BasicType constant_type;
1936   if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(java_type)) {
1937     constant_type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(java_type), JVMCI_CHECK_NULL);
1938   } else {
1939     constant_type = T_OBJECT;
1940   }
1941   int displacement = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_offset(field_object);
1942   fieldDescriptor fd;
1943   if (!ik->find_local_field_from_offset(displacement, (modifiers & JVM_ACC_STATIC) != 0, &fd)) {
1944     JVMCI_THROW_MSG_0(InternalError, err_msg("Can't find field with displacement %d", displacement));
1945   }
1946   JVMCIObject base = JVMCIENV->wrap(object);
1947   Handle obj;
1948   if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) {
1949     obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL);
1950   } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) {
1951     Klass* klass = JVMCIENV->asKlass(base);
1952     obj = Handle(THREAD, klass->java_mirror());
1953   } else {
1954     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
1955                          err_msg("Unexpected type: %s", JVMCIENV->klass_name(base)));
1956   }
1957   jlong value = 0;
1958   JVMCIObject kind;
1959   switch (constant_type) {
1960     case T_OBJECT: {
1961       oop object = is_volatile ? obj->obj_field_acquire(displacement) : obj->obj_field(displacement);
1962       JVMCIObject result = JVMCIENV->get_object_constant(object);
1963       if (result.is_null()) {
1964         return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
1965       }
1966       return JVMCIENV->get_jobject(result);
1967     }
1968     case T_FLOAT: {
1969       float f = is_volatile ? obj->float_field_acquire(displacement) : obj->float_field(displacement);
1970       JVMCIObject result = JVMCIENV->call_JavaConstant_forFloat(f, JVMCI_CHECK_NULL);
1971       return JVMCIENV->get_jobject(result);
1972     }
1973     case T_DOUBLE: {
1974       double f = is_volatile ? obj->double_field_acquire(displacement) : obj->double_field(displacement);
1975       JVMCIObject result = JVMCIENV->call_JavaConstant_forDouble(f, JVMCI_CHECK_NULL);
1976       return JVMCIENV->get_jobject(result);
1977     }
1978     case T_BOOLEAN: value = is_volatile ? obj->bool_field_acquire(displacement) : obj->bool_field(displacement); break;
1979     case T_BYTE: value = is_volatile ? obj->byte_field_acquire(displacement) : obj->byte_field(displacement); break;
1980     case T_SHORT: value = is_volatile ? obj->short_field_acquire(displacement) : obj->short_field(displacement); break;
1981     case T_CHAR: value = is_volatile ? obj->char_field_acquire(displacement) : obj->char_field(displacement); break;
1982     case T_INT: value = is_volatile ? obj->int_field_acquire(displacement) : obj->int_field(displacement); break;
1983     case T_LONG: value = is_volatile ? obj->long_field_acquire(displacement) : obj->long_field(displacement); break;
1984     default:
1985       ShouldNotReachHere();
1986   }
1987   JVMCIObject result = JVMCIENV->call_PrimitiveConstant_forTypeChar(type2char(constant_type), value, JVMCI_CHECK_NULL);
1988   return JVMCIENV->get_jobject(result);
1989 C2V_END
1990 
1991 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object))
1992   if (object == NULL || holder == NULL) {
1993     JVMCI_THROW_0(NullPointerException);
1994   }
1995   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1996   Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
1997   return obj->is_a(klass);
1998 C2V_END
1999 
2000 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder))
2001   if (holder == NULL || otherHolder == NULL) {
2002     JVMCI_THROW_0(NullPointerException);
2003   }
2004   Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2005   Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder));
2006   return otherKlass->is_subtype_of(klass);
2007 C2V_END
2008 
2009 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder))
2010   if (holder == NULL) {
2011     JVMCI_THROW_0(NullPointerException);
2012   }
2013   InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder)));
2014   if (ik->class_loader_data()->is_builtin_class_loader_data()) {
2015     return true;
2016   }
2017   return false;
2018 C2V_END
2019 
2020 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2021   if (object == NULL) {
2022     JVMCI_THROW_0(NullPointerException);
2023   }
2024   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2025   if (java_lang_Class::is_instance(obj())) {
2026     if (java_lang_Class::is_primitive(obj())) {
2027       JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2028       return JVMCIENV->get_jobject(type);
2029     }
2030     Klass* klass = java_lang_Class::as_Klass(obj());
2031     JVMCIKlassHandle klass_handle(THREAD);
2032     klass_handle = klass;
2033     JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2034     return JVMCIENV->get_jobject(type);
2035   }
2036   return NULL;
2037 C2V_END
2038 
2039 
2040 C2V_VMENTRY_NULL(jobject, asString, (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   const char* str = java_lang_String::as_utf8_string(obj());
2046   JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2047   return JVMCIENV->get_jobject(result);
2048 C2V_END
2049 
2050 
2051 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2052   if (x == NULL || y == NULL) {
2053     JVMCI_THROW_0(NullPointerException);
2054   }
2055   return JVMCIENV->resolve_handle(xHandle) == JVMCIENV->resolve_handle(yHandle);
2056 C2V_END
2057 
2058 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object))
2059   if (object == NULL) {
2060     JVMCI_THROW_0(NullPointerException);
2061   }
2062   JVMCIObject base_object = JVMCIENV->wrap(object);
2063   Handle mirror;
2064   if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
2065     mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror());
2066   } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) {
2067     mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL);
2068   } else {
2069     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2070                          err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
2071  }
2072   JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2073   return JVMCIENV->get_jobject(result);
2074 C2V_END
2075 
2076 
2077 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2078   if (x == NULL) {
2079     JVMCI_THROW_0(NullPointerException);
2080   }
2081   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2082   if (xobj->klass()->is_array_klass()) {
2083     return arrayOop(xobj())->length();
2084   }
2085   return -1;
2086  C2V_END
2087 
2088 
2089 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2090   if (x == NULL) {
2091     JVMCI_THROW_0(NullPointerException);
2092   }
2093   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2094   if (xobj->klass()->is_array_klass()) {
2095     arrayOop array = arrayOop(xobj());
2096     BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2097     if (index < 0 || index >= array->length()) {
2098       return NULL;
2099     }
2100     JVMCIObject result;
2101 
2102     if (element_type == T_OBJECT) {
2103       result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2104       if (result.is_null()) {
2105         result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2106       }
2107     } else {
2108       jvalue value;
2109       switch (element_type) {
2110         case T_DOUBLE:        value.d = typeArrayOop(xobj())->double_at(index);        break;
2111         case T_FLOAT:         value.f = typeArrayOop(xobj())->float_at(index);         break;
2112         case T_LONG:          value.j = typeArrayOop(xobj())->long_at(index);          break;
2113         case T_INT:           value.i = typeArrayOop(xobj())->int_at(index);            break;
2114         case T_SHORT:         value.s = typeArrayOop(xobj())->short_at(index);          break;
2115         case T_CHAR:          value.c = typeArrayOop(xobj())->char_at(index);           break;
2116         case T_BYTE:          value.b = typeArrayOop(xobj())->byte_at(index);           break;
2117         case T_BOOLEAN:       value.z = typeArrayOop(xobj())->byte_at(index) & 1;       break;
2118         default:              ShouldNotReachHere();
2119       }
2120       result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2121     }
2122     assert(!result.is_null(), "must have a value");
2123     return JVMCIENV->get_jobject(result);
2124   }
2125   return NULL;;
2126 C2V_END
2127 
2128 
2129 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind))
2130   if (kind == NULL) {
2131     JVMCI_THROW_0(NullPointerException);
2132   }
2133   BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2134   return arrayOopDesc::header_size(type) * HeapWordSize;
2135 C2V_END
2136 
2137 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind))
2138   if (kind == NULL) {
2139     JVMCI_THROW_0(NullPointerException);
2140   }
2141   BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2142   return type2aelembytes(type);
2143 C2V_END
2144 
2145 C2V_VMENTRY_0(jbyte, getByte, (JNIEnv* env, jobject, jobject x, long displacement))
2146   if (x == NULL) {
2147     JVMCI_THROW_0(NullPointerException);
2148   }
2149   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2150   return xobj->byte_field(displacement);
2151 }
2152 
2153 C2V_VMENTRY_0(jshort, getShort, (JNIEnv* env, jobject, jobject x, long displacement))
2154   if (x == NULL) {
2155     JVMCI_THROW_0(NullPointerException);
2156   }
2157   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2158   return xobj->short_field(displacement);
2159 }
2160 
2161 C2V_VMENTRY_0(jint, getInt, (JNIEnv* env, jobject, jobject x, long displacement))
2162   if (x == NULL) {
2163     JVMCI_THROW_0(NullPointerException);
2164   }
2165   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2166   return xobj->int_field(displacement);
2167 }
2168 
2169 C2V_VMENTRY_0(jlong, getLong, (JNIEnv* env, jobject, jobject x, long displacement))
2170   if (x == NULL) {
2171     JVMCI_THROW_0(NullPointerException);
2172   }
2173   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2174   return xobj->long_field(displacement);
2175 }
2176 
2177 C2V_VMENTRY_NULL(jobject, getObject, (JNIEnv* env, jobject, jobject x, long displacement))
2178   if (x == NULL) {
2179     JVMCI_THROW_0(NullPointerException);
2180   }
2181   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2182   oop res = xobj->obj_field(displacement);
2183   JVMCIObject result = JVMCIENV->get_object_constant(res);
2184   return JVMCIENV->get_jobject(result);
2185 }
2186 
2187 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong h))
2188   jobject handle = (jobject)(address)h;
2189   if (handle != NULL) {
2190     assert(JVMCI::is_global_handle(handle), "Invalid delete of global JNI handle");
2191     *((oop*)handle) = NULL; // Mark the handle as deleted, allocate will reuse it
2192   }
2193 }
2194 
2195 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2196   if (!UseJVMCINativeLibrary) {
2197     JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2198   }
2199 }
2200 
2201 static JavaVM* requireNativeLibraryJavaVM(const char* caller, JVMCI_TRAPS) {
2202   JavaVM* javaVM = JVMCIEnv::get_shared_library_javavm();
2203   if (javaVM == NULL) {
2204     JVMCI_THROW_MSG_NULL(IllegalStateException, err_msg("Require JVMCI shared library to be initialized in %s", caller));
2205   }
2206   return javaVM;
2207 }
2208 
2209 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2210   requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2211   requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2212   void* shared_library = JVMCIEnv::get_shared_library_handle();
2213   if (shared_library == NULL) {
2214     // Ensure the JVMCI shared library runtime is initialized.
2215     JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2216     JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2217     HandleMark hm;
2218     JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2219     JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv);
2220     if (peerEnv->has_pending_exception()) {
2221       peerEnv->describe_pending_exception(true);
2222     }
2223     shared_library = JVMCIEnv::get_shared_library_handle();
2224     if (shared_library == NULL) {
2225       JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2226     }
2227   }
2228 
2229   if (mirror == NULL) {
2230     JVMCI_THROW_0(NullPointerException);
2231   }
2232   Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2233   if (klass == NULL || !klass->is_instance_klass()) {
2234     JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2235   }
2236 
2237   InstanceKlass* iklass = InstanceKlass::cast(klass);
2238   for (int i = 0; i < iklass->methods()->length(); i++) {
2239     Method* method = iklass->methods()->at(i);
2240     if (method->is_native()) {
2241 
2242       // Compute argument size
2243       int args_size = 1                             // JNIEnv
2244                     + (method->is_static() ? 1 : 0) // class for static methods
2245                     + method->size_of_parameters(); // actual parameters
2246 
2247       // 1) Try JNI short style
2248       stringStream st;
2249       char* pure_name = NativeLookup::pure_jni_name(method);
2250       os::print_jni_name_prefix_on(&st, args_size);
2251       st.print_raw(pure_name);
2252       os::print_jni_name_suffix_on(&st, args_size);
2253       char* jni_name = st.as_string();
2254 
2255       address entry = (address) os::dll_lookup(shared_library, jni_name);
2256       if (entry == NULL) {
2257         // 2) Try JNI long style
2258         st.reset();
2259         char* long_name = NativeLookup::long_jni_name(method);
2260         os::print_jni_name_prefix_on(&st, args_size);
2261         st.print_raw(pure_name);
2262         st.print_raw(long_name);
2263         os::print_jni_name_suffix_on(&st, args_size);
2264         char* jni_long_name = st.as_string();
2265         entry = (address) os::dll_lookup(shared_library, jni_long_name);
2266         if (entry == NULL) {
2267           JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2268               method->name_and_sig_as_C_string(),
2269               jni_name, jni_long_name, JVMCIEnv::get_shared_library_path()));
2270         }
2271       }
2272 
2273       if (method->has_native_function() && entry != method->native_function()) {
2274         JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2275             method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2276       }
2277       method->set_native_function(entry, Method::native_bind_event_is_interesting);
2278       if (PrintJNIResolving) {
2279         tty->print_cr("[Dynamic-linking native method %s.%s ... JNI]",
2280           method->method_holder()->external_name(),
2281           method->name()->as_C_string());
2282       }
2283     }
2284   }
2285 
2286   JavaVM* javaVM = JVMCIEnv::get_shared_library_javavm();
2287   JVMCIPrimitiveArray result = JVMCIENV->new_longArray(4, JVMCI_CHECK_NULL);
2288   JVMCIENV->put_long_at(result, 0, (jlong) (address) javaVM);
2289   JVMCIENV->put_long_at(result, 1, (jlong) (address) javaVM->functions->reserved0);
2290   JVMCIENV->put_long_at(result, 2, (jlong) (address) javaVM->functions->reserved1);
2291   JVMCIENV->put_long_at(result, 3, (jlong) (address) javaVM->functions->reserved2);
2292   return (jlongArray) JVMCIENV->get_jobject(result);
2293 }
2294 
2295 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2296   if (base_thread == NULL) {
2297     // Called from unattached JVMCI shared library thread
2298     return false;
2299   }
2300   JVMCITraceMark jtm("isCurrentThreadAttached");
2301   assert(base_thread->is_Java_thread(), "just checking");
2302   JavaThread* thread = (JavaThread*) base_thread;
2303   if (thread->jni_environment() == env) {
2304     C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2305     requireJVMCINativeLibrary(JVMCI_CHECK_0);
2306     JavaVM* javaVM = requireNativeLibraryJavaVM("isCurrentThreadAttached", JVMCI_CHECK_0);
2307     JNIEnv* peerEnv;
2308     return javaVM->GetEnv((void**)&peerEnv, JNI_VERSION_1_2) == JNI_OK;
2309   }
2310   return true;
2311 C2V_END
2312 
2313 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean as_daemon))
2314   if (base_thread == NULL) {
2315     // Called from unattached JVMCI shared library thread
2316     extern struct JavaVM_ main_vm;
2317     JNIEnv* hotspotEnv;
2318     jint res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, NULL) :
2319                            main_vm.AttachCurrentThread((void**)&hotspotEnv, NULL);
2320     if (res != JNI_OK) {
2321       JNI_THROW_("attachCurrentThread", InternalError, err_msg("Trying to attach thread returned %d", res), false);
2322     }
2323     return true;
2324   }
2325   JVMCITraceMark jtm("attachCurrentThread");
2326   assert(base_thread->is_Java_thread(), "just checking");\
2327   JavaThread* thread = (JavaThread*) base_thread;
2328   if (thread->jni_environment() == env) {
2329     // Called from HotSpot
2330     C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2331     requireJVMCINativeLibrary(JVMCI_CHECK_0);
2332     JavaVM* javaVM = requireNativeLibraryJavaVM("attachCurrentThread", JVMCI_CHECK_0);
2333     JavaVMAttachArgs attach_args;
2334     attach_args.version = JNI_VERSION_1_2;
2335     attach_args.name = thread->name();
2336     attach_args.group = NULL;
2337     JNIEnv* peerEnv;
2338     if (javaVM->GetEnv((void**)&peerEnv, JNI_VERSION_1_2) == JNI_OK) {
2339       return false;
2340     }
2341     jint res = as_daemon ? javaVM->AttachCurrentThreadAsDaemon((void**)&peerEnv, &attach_args) :
2342                            javaVM->AttachCurrentThread((void**)&peerEnv, &attach_args);
2343     if (res == JNI_OK) {
2344       guarantee(peerEnv != NULL, "must be");
2345       return true;
2346     }
2347     JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2348   }
2349   // Called from JVMCI shared library
2350   return false;
2351 C2V_END
2352 
2353 C2V_VMENTRY_PREFIX(void, detachCurrentThread, (JNIEnv* env, jobject c2vm))
2354   if (base_thread == NULL) {
2355     // Called from unattached JVMCI shared library thread
2356     JNI_THROW("detachCurrentThread", IllegalStateException, err_msg("Cannot detach non-attached thread"));
2357   }
2358   JVMCITraceMark jtm("detachCurrentThread");
2359   assert(base_thread->is_Java_thread(), "just checking");\
2360   JavaThread* thread = (JavaThread*) base_thread;
2361   if (thread->jni_environment() == env) {
2362     // Called from HotSpot
2363     C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2364     requireJVMCINativeLibrary(JVMCI_CHECK);
2365     requireInHotSpot("detachCurrentThread", JVMCI_CHECK);
2366     JavaVM* javaVM = requireNativeLibraryJavaVM("detachCurrentThread", JVMCI_CHECK);
2367     JNIEnv* peerEnv;
2368     if (javaVM->GetEnv((void**)&peerEnv, JNI_VERSION_1_2) != JNI_OK) {
2369       JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2370     }
2371     jint res = javaVM->DetachCurrentThread();
2372     if (res != JNI_OK) {
2373       JVMCI_THROW_MSG(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2374     }
2375   } else {
2376     // Called from attached JVMCI shared library thread
2377     extern struct JavaVM_ main_vm;
2378     jint res = main_vm.DetachCurrentThread();
2379     if (res != JNI_OK) {
2380       JNI_THROW("detachCurrentThread", InternalError, err_msg("Cannot detach non-attached thread"));
2381     }
2382   }
2383 C2V_END
2384 
2385 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
2386   requireJVMCINativeLibrary(JVMCI_CHECK_0);
2387   if (obj_handle == NULL) {
2388     return 0L;
2389   }
2390   JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2391   JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2392   JVMCIEnv* thisEnv = JVMCIENV;
2393 
2394   JVMCIObject obj = thisEnv->wrap(obj_handle);
2395   JVMCIObject result;
2396   if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2397     Method* method = thisEnv->asMethod(obj);
2398     result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2399   } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2400     Klass* klass = thisEnv->asKlass(obj);
2401     JVMCIKlassHandle klass_handle(THREAD);
2402     klass_handle = klass;
2403     result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2404   } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2405     BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2406     result = peerEnv->get_jvmci_primitive_type(type);
2407   } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2408              thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2409     Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2410     result = peerEnv->get_object_constant(constant());
2411   } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2412     nmethod* nm = thisEnv->asNmethod(obj);
2413     if (nm != NULL) {
2414       JVMCINMethodData* data = nm->jvmci_nmethod_data();
2415       if (data != NULL) {
2416         if (peerEnv->is_hotspot()) {
2417           // Only the mirror in the HotSpot heap is accessible
2418           // through JVMCINMethodData
2419           oop nmethod_mirror = data->get_nmethod_mirror(nm);
2420           if (nmethod_mirror != NULL) {
2421             result = HotSpotJVMCI::wrap(nmethod_mirror);
2422           }
2423         }
2424       }
2425     }
2426     if (result.is_null()) {
2427       JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2428       methodHandle mh = thisEnv->asMethod(methodObject);
2429       jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2430       jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2431       JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2432       const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2433       // Create a new HotSpotNmethod instance in the peer runtime
2434       result = peerEnv->new_HotSpotNmethod(mh(), cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2435       if (nm == NULL) {
2436         // nmethod must have been unloaded
2437       } else {
2438         // Link the new HotSpotNmethod to the nmethod
2439         peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2440         // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2441         if (peerEnv->is_hotspot()) {
2442           JVMCINMethodData* data = nm->jvmci_nmethod_data();
2443           if (data == NULL) {
2444             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2445           }
2446           if (data->get_nmethod_mirror(nm) != NULL) {
2447             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2448           }
2449           oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2450           data->set_nmethod_mirror(nm, nmethod_mirror);
2451         }
2452       }
2453     }
2454   } else {
2455     JVMCI_THROW_MSG_0(IllegalArgumentException,
2456                 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2457   }
2458   return (jlong) peerEnv->make_global(result).as_jobject();
2459 }
2460 
2461 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2462   requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2463   if (obj_handle == 0L) {
2464     return NULL;
2465   }
2466   jobject global_handle = (jobject) obj_handle;
2467   JVMCIObject global_handle_obj = JVMCIENV->wrap((jobject) obj_handle);
2468   jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2469 
2470   JVMCIENV->destroy_global(global_handle_obj);
2471   return result;
2472 }
2473 
2474 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2475   JVMCIObject code = JVMCIENV->wrap(code_handle);
2476   // Execute this operation for the side effect of updating the InstalledCode state
2477   JVMCIENV->asNmethod(code);
2478 }
2479 
2480 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2481   JVMCIObject code = JVMCIENV->wrap(code_handle);
2482   CodeBlob* cb = JVMCIENV->asCodeBlob(code);
2483   if (cb == NULL) {
2484     return NULL;
2485   }
2486   int code_size = cb->code_size();
2487   JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2488   JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2489   return JVMCIENV->get_jbyteArray(result);
2490 }
2491 
2492 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2493   requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2494   methodHandle m = JVMCIENV->asMethod(jvmci_method);
2495   oop executable;
2496   if (m->is_initializer()) {
2497     if (m->is_static_initializer()) {
2498       JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2499           "Cannot create java.lang.reflect.Method for class initializer");
2500     }
2501     executable = Reflection::new_constructor(m, CHECK_NULL);
2502   } else {
2503     executable = Reflection::new_method(m, false, CHECK_NULL);
2504   }
2505   return JNIHandles::make_local(THREAD, executable);
2506 }
2507 
2508 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2509   requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2510   Klass* klass = JVMCIENV->asKlass(jvmci_type);
2511   if (!klass->is_instance_klass()) {
2512     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2513         err_msg("Expected non-primitive type, got %s", klass->external_name()));
2514   }
2515   InstanceKlass* iklass = InstanceKlass::cast(klass);
2516   Array<u2>* fields = iklass->fields();
2517   if (index < 0 ||index > fields->length()) {
2518     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2519         err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2520   }
2521   fieldDescriptor fd(iklass, index);
2522   oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2523   return JNIHandles::make_local(env, reflected);
2524 }
2525 
2526 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2527   FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2528   int result_length = 0;
2529   for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) {
2530     result_length++;
2531   }
2532   int current_length = 0;
2533   JVMCIObjectArray current_array = NULL;
2534   if (current != NULL) {
2535     current_array = JVMCIENV->wrap(current);
2536     current_length = JVMCIENV->get_length(current_array);
2537     if (current_length == result_length) {
2538       // No new failures
2539       return current;
2540     }
2541   }
2542   JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2543   int result_index = 0;
2544   for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2545     assert(fs != NULL, "npe");
2546     JVMCIPrimitiveArray entry;
2547     if (result_index < current_length) {
2548       entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2549     } else {
2550       entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2551       JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2552     }
2553     JVMCIENV->put_object_at(result, result_index++, entry);
2554   }
2555   return JVMCIENV->get_jobjectArray(result);
2556 }
2557 
2558 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2559   methodHandle method = JVMCIENV->asMethod(jvmci_method);
2560   MethodData* method_data = method->method_data();
2561   if (method_data == NULL) {
2562     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2563     method_data = MethodData::allocate(loader_data, method, CHECK_0);
2564     method->set_method_data(method_data);
2565   }
2566   return (jlong) method_data->get_failed_speculations_address();
2567 }
2568 
2569 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2570   FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2571 }
2572 
2573 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2574   JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2575   int speculation_len = JVMCIENV->get_length(speculation_handle);
2576   char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2577   JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2578   return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2579 }
2580 
2581 #define CC (char*)  /*cast a literal from (const char*)*/
2582 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
2583 
2584 #define STRING                  "Ljava/lang/String;"
2585 #define OBJECT                  "Ljava/lang/Object;"
2586 #define CLASS                   "Ljava/lang/Class;"
2587 #define OBJECTCONSTANT          "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
2588 #define HANDLECONSTANT          "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;"
2589 #define EXECUTABLE              "Ljava/lang/reflect/Executable;"
2590 #define STACK_TRACE_ELEMENT     "Ljava/lang/StackTraceElement;"
2591 #define INSTALLED_CODE          "Ljdk/vm/ci/code/InstalledCode;"
2592 #define TARGET_DESCRIPTION      "Ljdk/vm/ci/code/TargetDescription;"
2593 #define BYTECODE_FRAME          "Ljdk/vm/ci/code/BytecodeFrame;"
2594 #define JAVACONSTANT            "Ljdk/vm/ci/meta/JavaConstant;"
2595 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
2596 #define RESOLVED_METHOD         "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
2597 #define HS_RESOLVED_METHOD      "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
2598 #define HS_RESOLVED_KLASS       "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
2599 #define HS_RESOLVED_TYPE        "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
2600 #define HS_RESOLVED_FIELD       "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;"
2601 #define HS_INSTALLED_CODE       "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
2602 #define HS_NMETHOD              "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
2603 #define HS_CONSTANT_POOL        "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
2604 #define HS_COMPILED_CODE        "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
2605 #define HS_CONFIG               "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
2606 #define HS_METADATA             "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
2607 #define HS_STACK_FRAME_REF      "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
2608 #define HS_SPECULATION_LOG      "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
2609 #define METASPACE_OBJECT        "Ljdk/vm/ci/hotspot/MetaspaceObject;"
2610 #define REFLECTION_EXECUTABLE   "Ljava/lang/reflect/Executable;"
2611 #define REFLECTION_FIELD        "Ljava/lang/reflect/Field;"
2612 #define METASPACE_METHOD_DATA   "J"
2613 
2614 JNINativeMethod CompilerToVM::methods[] = {
2615   {CC "getBytecode",                                  CC "(" HS_RESOLVED_METHOD ")[B",                                                      FN_PTR(getBytecode)},
2616   {CC "getExceptionTableStart",                       CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getExceptionTableStart)},
2617   {CC "getExceptionTableLength",                      CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getExceptionTableLength)},
2618   {CC "findUniqueConcreteMethod",                     CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD,                   FN_PTR(findUniqueConcreteMethod)},
2619   {CC "getImplementor",                               CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getImplementor)},
2620   {CC "getStackTraceElement",                         CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT,                                   FN_PTR(getStackTraceElement)},
2621   {CC "methodIsIgnoredBySecurityStackWalk",           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(methodIsIgnoredBySecurityStackWalk)},
2622   {CC "setNotInlinableOrCompilable",                  CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(setNotInlinableOrCompilable)},
2623   {CC "isCompilable",                                 CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(isCompilable)},
2624   {CC "hasNeverInlineDirective",                      CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(hasNeverInlineDirective)},
2625   {CC "shouldInlineMethod",                           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(shouldInlineMethod)},
2626   {CC "lookupType",                                   CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE,                                FN_PTR(lookupType)},
2627   {CC "lookupClass",                                  CC "(" CLASS ")" HS_RESOLVED_TYPE,                                                    FN_PTR(lookupClass)},
2628   {CC "lookupNameInPool",                             CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupNameInPool)},
2629   {CC "lookupNameAndTypeRefIndexInPool",              CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupNameAndTypeRefIndexInPool)},
2630   {CC "lookupSignatureInPool",                        CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupSignatureInPool)},
2631   {CC "lookupKlassRefIndexInPool",                    CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupKlassRefIndexInPool)},
2632   {CC "lookupKlassInPool",                            CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;",                                       FN_PTR(lookupKlassInPool)},
2633   {CC "lookupAppendixInPool",                         CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(lookupAppendixInPool)},
2634   {CC "lookupMethodInPool",                           CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD,                                     FN_PTR(lookupMethodInPool)},
2635   {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(constantPoolRemapInstructionOperandFromCache)},
2636   {CC "resolveConstantInPool",                        CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(resolveConstantInPool)},
2637   {CC "resolvePossiblyCachedConstantInPool",          CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(resolvePossiblyCachedConstantInPool)},
2638   {CC "resolveTypeInPool",                            CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS,                                       FN_PTR(resolveTypeInPool)},
2639   {CC "resolveFieldInPool",                           CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS,              FN_PTR(resolveFieldInPool)},
2640   {CC "resolveInvokeDynamicInPool",                   CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeDynamicInPool)},
2641   {CC "resolveInvokeHandleInPool",                    CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeHandleInPool)},
2642   {CC "isResolvedInvokeHandleInPool",                 CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(isResolvedInvokeHandleInPool)},
2643   {CC "resolveMethod",                                CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
2644   {CC "getSignaturePolymorphicHolders",               CC "()[" STRING,                                                                      FN_PTR(getSignaturePolymorphicHolders)},
2645   {CC "getVtableIndexForInterfaceMethod",             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I",                                     FN_PTR(getVtableIndexForInterfaceMethod)},
2646   {CC "getClassInitializer",                          CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD,                                      FN_PTR(getClassInitializer)},
2647   {CC "hasFinalizableSubclass",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(hasFinalizableSubclass)},
2648   {CC "getMaxCallTargetOffset",                       CC "(J)J",                                                                            FN_PTR(getMaxCallTargetOffset)},
2649   {CC "asResolvedJavaMethod",                         CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD,                                             FN_PTR(asResolvedJavaMethod)},
2650   {CC "getResolvedJavaMethod",                        CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD,                                        FN_PTR(getResolvedJavaMethod)},
2651   {CC "getConstantPool",                              CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL,                                         FN_PTR(getConstantPool)},
2652   {CC "getResolvedJavaType0",                         CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS,                                        FN_PTR(getResolvedJavaType0)},
2653   {CC "readConfiguration",                            CC "()[" OBJECT,                                                                      FN_PTR(readConfiguration)},
2654   {CC "installCode",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I",                    FN_PTR(installCode)},
2655   {CC "getMetadata",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I",                          FN_PTR(getMetadata)},
2656   {CC "resetCompilationStatistics",                   CC "()V",                                                                             FN_PTR(resetCompilationStatistics)},
2657   {CC "disassembleCodeBlob",                          CC "(" INSTALLED_CODE ")" STRING,                                                     FN_PTR(disassembleCodeBlob)},
2658   {CC "executeHotSpotNmethod",                        CC "([" OBJECT HS_NMETHOD ")" OBJECT,                                                 FN_PTR(executeHotSpotNmethod)},
2659   {CC "getLineNumberTable",                           CC "(" HS_RESOLVED_METHOD ")[J",                                                      FN_PTR(getLineNumberTable)},
2660   {CC "getLocalVariableTableStart",                   CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getLocalVariableTableStart)},
2661   {CC "getLocalVariableTableLength",                  CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getLocalVariableTableLength)},
2662   {CC "reprofile",                                    CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(reprofile)},
2663   {CC "invalidateHotSpotNmethod",                     CC "(" HS_NMETHOD ")V",                                                               FN_PTR(invalidateHotSpotNmethod)},
2664   {CC "readUncompressedOop",                          CC "(J)" OBJECTCONSTANT,                                                              FN_PTR(readUncompressedOop)},
2665   {CC "collectCounters",                              CC "()[J",                                                                            FN_PTR(collectCounters)},
2666   {CC "getCountersSize",                              CC "()I",                                                                             FN_PTR(getCountersSize)},
2667   {CC "setCountersSize",                              CC "(I)Z",                                                                            FN_PTR(setCountersSize)},
2668   {CC "allocateCompileId",                            CC "(" HS_RESOLVED_METHOD "I)I",                                                      FN_PTR(allocateCompileId)},
2669   {CC "isMature",                                     CC "(" METASPACE_METHOD_DATA ")Z",                                                    FN_PTR(isMature)},
2670   {CC "hasCompiledCodeForOSR",                        CC "(" HS_RESOLVED_METHOD "II)Z",                                                     FN_PTR(hasCompiledCodeForOSR)},
2671   {CC "getSymbol",                                    CC "(J)" STRING,                                                                      FN_PTR(getSymbol)},
2672   {CC "iterateFrames",                                CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT,   FN_PTR(iterateFrames)},
2673   {CC "materializeVirtualObjects",                    CC "(" HS_STACK_FRAME_REF "Z)V",                                                      FN_PTR(materializeVirtualObjects)},
2674   {CC "shouldDebugNonSafepoints",                     CC "()Z",                                                                             FN_PTR(shouldDebugNonSafepoints)},
2675   {CC "writeDebugOutput",                             CC "([BIIZZ)I",                                                                       FN_PTR(writeDebugOutput)},
2676   {CC "flushDebugOutput",                             CC "()V",                                                                             FN_PTR(flushDebugOutput)},
2677   {CC "methodDataProfileDataSize",                    CC "(JI)I",                                                                           FN_PTR(methodDataProfileDataSize)},
2678   {CC "getFingerprint",                               CC "(J)J",                                                                            FN_PTR(getFingerprint)},
2679   {CC "getHostClass",                                 CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getHostClass)},
2680   {CC "interpreterFrameSize",                         CC "(" BYTECODE_FRAME ")I",                                                           FN_PTR(interpreterFrameSize)},
2681   {CC "compileToBytecode",                            CC "(" OBJECTCONSTANT ")V",                                                           FN_PTR(compileToBytecode)},
2682   {CC "getFlagValue",                                 CC "(" STRING ")" OBJECT,                                                             FN_PTR(getFlagValue)},
2683   {CC "getObjectAtAddress",                           CC "(J)" OBJECT,                                                                      FN_PTR(getObjectAtAddress)},
2684   {CC "getInterfaces",                                CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS,                                      FN_PTR(getInterfaces)},
2685   {CC "getComponentType",                             CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE,                                        FN_PTR(getComponentType)},
2686   {CC "ensureInitialized",                            CC "(" HS_RESOLVED_KLASS ")V",                                                        FN_PTR(ensureInitialized)},
2687   {CC "getIdentityHashCode",                          CC "(" OBJECTCONSTANT ")I",                                                           FN_PTR(getIdentityHashCode)},
2688   {CC "isInternedString",                             CC "(" OBJECTCONSTANT ")Z",                                                           FN_PTR(isInternedString)},
2689   {CC "unboxPrimitive",                               CC "(" OBJECTCONSTANT ")" OBJECT,                                                     FN_PTR(unboxPrimitive)},
2690   {CC "boxPrimitive",                                 CC "(" OBJECT ")" OBJECTCONSTANT,                                                     FN_PTR(boxPrimitive)},
2691   {CC "getDeclaredConstructors",                      CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD,                                        FN_PTR(getDeclaredConstructors)},
2692   {CC "getDeclaredMethods",                           CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD,                                        FN_PTR(getDeclaredMethods)},
2693   {CC "readFieldValue",                               CC "(" HS_RESOLVED_KLASS HS_RESOLVED_FIELD "Z)" JAVACONSTANT,                         FN_PTR(readFieldValue)},
2694   {CC "readFieldValue",                               CC "(" OBJECTCONSTANT HS_RESOLVED_FIELD "Z)" JAVACONSTANT,                            FN_PTR(readFieldValue)},
2695   {CC "isInstance",                                   CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z",                                         FN_PTR(isInstance)},
2696   {CC "isAssignableFrom",                             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z",                                      FN_PTR(isAssignableFrom)},
2697   {CC "isTrustedForIntrinsics",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(isTrustedForIntrinsics)},
2698   {CC "asJavaType",                                   CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE,                                           FN_PTR(asJavaType)},
2699   {CC "asString",                                     CC "(" OBJECTCONSTANT ")" STRING,                                                     FN_PTR(asString)},
2700   {CC "equals",                                       CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z",                                       FN_PTR(equals)},
2701   {CC "getJavaMirror",                                CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT,                                           FN_PTR(getJavaMirror)},
2702   {CC "getArrayLength",                               CC "(" OBJECTCONSTANT ")I",                                                           FN_PTR(getArrayLength)},
2703   {CC "readArrayElement",                             CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;",                                         FN_PTR(readArrayElement)},
2704   {CC "arrayBaseOffset",                              CC "(Ljdk/vm/ci/meta/JavaKind;)I",                                                    FN_PTR(arrayBaseOffset)},
2705   {CC "arrayIndexScale",                              CC "(Ljdk/vm/ci/meta/JavaKind;)I",                                                    FN_PTR(arrayIndexScale)},
2706   {CC "getByte",                                      CC "(" OBJECTCONSTANT "J)B",                                                          FN_PTR(getByte)},
2707   {CC "getShort",                                     CC "(" OBJECTCONSTANT "J)S",                                                          FN_PTR(getShort)},
2708   {CC "getInt",                                       CC "(" OBJECTCONSTANT "J)I",                                                          FN_PTR(getInt)},
2709   {CC "getLong",                                      CC "(" OBJECTCONSTANT "J)J",                                                          FN_PTR(getLong)},
2710   {CC "getObject",                                    CC "(" OBJECTCONSTANT "J)" OBJECTCONSTANT,                                            FN_PTR(getObject)},
2711   {CC "deleteGlobalHandle",                           CC "(J)V",                                                                            FN_PTR(deleteGlobalHandle)},
2712   {CC "registerNativeMethods",                        CC "(" CLASS ")[J",                                                                   FN_PTR(registerNativeMethods)},
2713   {CC "isCurrentThreadAttached",                      CC "()Z",                                                                             FN_PTR(isCurrentThreadAttached)},
2714   {CC "attachCurrentThread",                          CC "(Z)Z",                                                                            FN_PTR(attachCurrentThread)},
2715   {CC "detachCurrentThread",                          CC "()V",                                                                             FN_PTR(detachCurrentThread)},
2716   {CC "translate",                                    CC "(" OBJECT ")J",                                                                   FN_PTR(translate)},
2717   {CC "unhand",                                       CC "(J)" OBJECT,                                                                      FN_PTR(unhand)},
2718   {CC "updateHotSpotNmethod",                         CC "(" HS_NMETHOD ")V",                                                               FN_PTR(updateHotSpotNmethod)},
2719   {CC "getCode",                                      CC "(" HS_INSTALLED_CODE ")[B",                                                       FN_PTR(getCode)},
2720   {CC "asReflectionExecutable",                       CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE,                                  FN_PTR(asReflectionExecutable)},
2721   {CC "asReflectionField",                            CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD,                                       FN_PTR(asReflectionField)},
2722   {CC "getFailedSpeculations",                        CC "(J[[B)[[B",                                                                       FN_PTR(getFailedSpeculations)},
2723   {CC "getFailedSpeculationsAddress",                 CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getFailedSpeculationsAddress)},
2724   {CC "releaseFailedSpeculations",                    CC "(J)V",                                                                            FN_PTR(releaseFailedSpeculations)},
2725   {CC "addFailedSpeculation",                         CC "(J[B)Z",                                                                          FN_PTR(addFailedSpeculation)},
2726 };
2727 
2728 int CompilerToVM::methods_count() {
2729   return sizeof(methods) / sizeof(JNINativeMethod);
2730 }