1 /*
   2  * Copyright (c) 2011, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 #include "precompiled.hpp"
  25 #include "classfile/classLoaderData.inline.hpp"
  26 #include "classfile/javaClasses.inline.hpp"
  27 #include "classfile/stringTable.hpp"
  28 #include "classfile/symbolTable.hpp"
  29 #include "code/scopeDesc.hpp"
  30 #include "compiler/compileBroker.hpp"
  31 #include "compiler/disassembler.hpp"
  32 #include "interpreter/linkResolver.hpp"
  33 #include "interpreter/bytecodeStream.hpp"
  34 #include "jvmci/jvmciCompilerToVM.hpp"
  35 #include "jvmci/jvmciCodeInstaller.hpp"
  36 #include "jvmci/jvmciRuntime.hpp"
  37 #include "memory/oopFactory.hpp"
  38 #include "oops/constantPool.inline.hpp"
  39 #include "oops/method.inline.hpp"
  40 #include "oops/objArrayOop.inline.hpp"
  41 #include "oops/typeArrayOop.inline.hpp"
  42 #include "prims/nativeLookup.hpp"
  43 #include "runtime/deoptimization.hpp"
  44 #include "runtime/frame.inline.hpp"
  45 #include "runtime/interfaceSupport.inline.hpp"
  46 #include "runtime/jniHandles.inline.hpp"
  47 #include "runtime/timerTrace.hpp"
  48 #include "runtime/vframe_hp.hpp"
  49 
  50 JVMCIKlassHandle::JVMCIKlassHandle(Thread* thread, Klass* klass) {
  51   _thread = thread;
  52   _klass = klass;
  53   if (klass != NULL) {
  54     _holder = Handle(_thread, klass->holder_phantom());
  55   }
  56 }
  57 
  58 JVMCIKlassHandle& JVMCIKlassHandle::operator=(Klass* klass) {
  59   _klass = klass;
  60   if (klass != NULL) {
  61     _holder = Handle(_thread, klass->holder_phantom());
  62   }
  63   return *this;
  64 }
  65 
  66 static void requireInHotSpot(const char* caller, JVMCI_TRAPS) {
  67   if (!JVMCIENV->is_hotspot()) {
  68     JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot call %s from JVMCI shared library", caller));
  69   }
  70 }
  71 
  72 void JNIHandleMark::push_jni_handle_block(JavaThread* thread) {
  73   if (thread != NULL) {
  74     // Allocate a new block for JNI handles.
  75     // Inlined code from jni_PushLocalFrame()
  76     JNIHandleBlock* java_handles = thread->active_handles();
  77     JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread);
  78     assert(compile_handles != NULL && java_handles != NULL, "should not be NULL");
  79     compile_handles->set_pop_frame_link(java_handles);
  80     thread->set_active_handles(compile_handles);
  81   }
  82 }
  83 
  84 void JNIHandleMark::pop_jni_handle_block(JavaThread* thread) {
  85   if (thread != NULL) {
  86     // Release our JNI handle block
  87     JNIHandleBlock* compile_handles = thread->active_handles();
  88     JNIHandleBlock* java_handles = compile_handles->pop_frame_link();
  89     thread->set_active_handles(java_handles);
  90     compile_handles->set_pop_frame_link(NULL);
  91     JNIHandleBlock::release_block(compile_handles, thread); // may block
  92   }
  93 }
  94 
  95 class JVMCITraceMark : public StackObj {
  96   const char* _msg;
  97  public:
  98   JVMCITraceMark(const char* msg) {
  99     _msg = msg;
 100     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     obj->verify();
 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 
 457   methodHandle ucm;
 458   {
 459     MutexLocker locker(Compile_lock);
 460     ucm = Dependencies::find_unique_concrete_method(holder, method());
 461   }
 462   JVMCIObject result = JVMCIENV->get_jvmci_method(ucm, JVMCI_CHECK_NULL);
 463   return JVMCIENV->get_jobject(result);
 464 C2V_END
 465 
 466 C2V_VMENTRY_NULL(jobject, getImplementor, (JNIEnv* env, jobject, jobject jvmci_type))
 467   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 468   if (!klass->is_interface()) {
 469     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 470         err_msg("Expected interface type, got %s", klass->external_name()));
 471   }
 472   InstanceKlass* iklass = InstanceKlass::cast(klass);
 473   JVMCIKlassHandle handle(THREAD);
 474   {
 475     // Need Compile_lock around implementor()
 476     MutexLocker locker(Compile_lock);
 477     handle = iklass->implementor();
 478   }
 479   JVMCIObject implementor = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
 480   return JVMCIENV->get_jobject(implementor);
 481 C2V_END
 482 
 483 C2V_VMENTRY_0(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv* env, jobject, jobject jvmci_method))
 484   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 485   return method->is_ignored_by_security_stack_walk();
 486 C2V_END
 487 
 488 C2V_VMENTRY_0(jboolean, isCompilable,(JNIEnv* env, jobject, jobject jvmci_method))
 489   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 490   constantPoolHandle cp = method->constMethod()->constants();
 491   assert(!cp.is_null(), "npe");
 492   // don't inline method when constant pool contains a CONSTANT_Dynamic
 493   return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
 494 C2V_END
 495 
 496 C2V_VMENTRY_0(jboolean, hasNeverInlineDirective,(JNIEnv* env, jobject, jobject jvmci_method))
 497   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 498   return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
 499 C2V_END
 500 
 501 C2V_VMENTRY_0(jboolean, shouldInlineMethod,(JNIEnv* env, jobject, jobject jvmci_method))
 502   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 503   return CompilerOracle::should_inline(method) || method->force_inline();
 504 C2V_END
 505 
 506 C2V_VMENTRY_NULL(jobject, lookupType, (JNIEnv* env, jobject, jstring jname, jclass accessing_class, jboolean resolve))
 507   JVMCIObject name = JVMCIENV->wrap(jname);
 508   const char* str = JVMCIENV->as_utf8_string(name);
 509   TempNewSymbol class_name = SymbolTable::new_symbol(str, CHECK_NULL);
 510 
 511   if (class_name->utf8_length() <= 1) {
 512     JVMCI_THROW_MSG_0(InternalError, err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
 513   }
 514 
 515   JVMCIKlassHandle resolved_klass(THREAD);
 516   Klass* accessing_klass = NULL;
 517   Handle class_loader;
 518   Handle protection_domain;
 519   if (accessing_class != NULL) {
 520     accessing_klass = JVMCIENV->asKlass(accessing_class);
 521     class_loader = Handle(THREAD, accessing_klass->class_loader());
 522     protection_domain = Handle(THREAD, accessing_klass->protection_domain());
 523   } else {
 524     // Use the System class loader
 525     class_loader = Handle(THREAD, SystemDictionary::java_system_loader());
 526     JVMCIENV->runtime()->initialize(JVMCIENV);
 527   }
 528 
 529   if (resolve) {
 530     resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
 531     if (resolved_klass == NULL) {
 532       JVMCI_THROW_MSG_NULL(ClassNotFoundException, str);
 533     }
 534   } else {
 535     if (class_name->byte_at(0) == 'L' &&
 536       class_name->byte_at(class_name->utf8_length()-1) == ';') {
 537       // This is a name from a signature.  Strip off the trimmings.
 538       // Call recursive to keep scope of strippedsym.
 539       TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
 540                                                           class_name->utf8_length()-2,
 541                                                           CHECK_0);
 542       resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
 543     } else if (FieldType::is_array(class_name)) {
 544       FieldArrayInfo fd;
 545       // dimension and object_key in FieldArrayInfo are assigned as a side-effect
 546       // of this call
 547       BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
 548       if (t == T_OBJECT) {
 549         TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
 550                                                             class_name->utf8_length()-2-fd.dimension(),
 551                                                             CHECK_0);
 552         resolved_klass = SystemDictionary::find(strippedsym,
 553                                                              class_loader,
 554                                                              protection_domain,
 555                                                              CHECK_0);
 556         if (!resolved_klass.is_null()) {
 557           resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
 558         }
 559       } else {
 560         resolved_klass = TypeArrayKlass::cast(Universe::typeArrayKlassObj(t))->array_klass(fd.dimension(), CHECK_0);
 561       }
 562     } else {
 563       resolved_klass = SystemDictionary::find(class_name, class_loader, protection_domain, CHECK_0);
 564     }
 565   }
 566   JVMCIObject result = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
 567   return JVMCIENV->get_jobject(result);
 568 C2V_END
 569 
 570 C2V_VMENTRY_NULL(jobject, getArrayType, (JNIEnv* env, jobject, jobject jvmci_type))
 571   if (jvmci_type == NULL) {
 572     JVMCI_THROW_0(NullPointerException);
 573   }
 574 
 575   JVMCIObject jvmci_type_object = JVMCIENV->wrap(jvmci_type);
 576   JVMCIKlassHandle array_klass(THREAD);
 577   if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(jvmci_type_object)) {
 578     BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(jvmci_type_object), JVMCI_CHECK_0);
 579     if (type == T_VOID) {
 580       return NULL;
 581     }
 582     array_klass = Universe::typeArrayKlassObj(type);
 583     if (array_klass == NULL) {
 584       JVMCI_THROW_MSG_NULL(InternalError, err_msg("No array klass for primitive type %s", type2name(type)));
 585     }
 586   } else {
 587     Klass* klass = JVMCIENV->asKlass(jvmci_type);
 588     if (klass == NULL) {
 589       JVMCI_THROW_0(NullPointerException);
 590     }
 591     array_klass = klass->array_klass(CHECK_NULL);
 592   }
 593   JVMCIObject result = JVMCIENV->get_jvmci_type(array_klass, JVMCI_CHECK_NULL);
 594   return JVMCIENV->get_jobject(result);
 595 C2V_END
 596 
 597 C2V_VMENTRY_NULL(jobject, lookupClass, (JNIEnv* env, jobject, jclass mirror))
 598   requireInHotSpot("lookupClass", JVMCI_CHECK_NULL);
 599   if (mirror == NULL) {
 600     return NULL;
 601   }
 602   JVMCIKlassHandle klass(THREAD);
 603   klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
 604   if (klass == NULL) {
 605     JVMCI_THROW_MSG_NULL(IllegalArgumentException, "Primitive classes are unsupported");
 606   }
 607   JVMCIObject result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 608   return JVMCIENV->get_jobject(result);
 609 }
 610 
 611 C2V_VMENTRY_NULL(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 612   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 613   oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
 614   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(result));
 615 C2V_END
 616 
 617 C2V_VMENTRY_0(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 618   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 619   return cp->name_and_type_ref_index_at(index);
 620 C2V_END
 621 
 622 C2V_VMENTRY_NULL(jobject, lookupNameInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
 623   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 624   JVMCIObject sym = JVMCIENV->create_string(cp->name_ref_at(which), JVMCI_CHECK_NULL);
 625   return JVMCIENV->get_jobject(sym);
 626 C2V_END
 627 
 628 C2V_VMENTRY_NULL(jobject, lookupSignatureInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint which))
 629   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 630   JVMCIObject sym = JVMCIENV->create_string(cp->signature_ref_at(which), JVMCI_CHECK_NULL);
 631   return JVMCIENV->get_jobject(sym);
 632 C2V_END
 633 
 634 C2V_VMENTRY_0(jint, lookupKlassRefIndexInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 635   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 636   return cp->klass_ref_index_at(index);
 637 C2V_END
 638 
 639 C2V_VMENTRY_NULL(jobject, resolveTypeInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 640   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 641   Klass* klass = cp->klass_at(index, CHECK_NULL);
 642   JVMCIKlassHandle resolved_klass(THREAD, klass);
 643   if (resolved_klass->is_instance_klass()) {
 644     InstanceKlass::cast(resolved_klass())->link_class(CHECK_NULL);
 645     if (!InstanceKlass::cast(resolved_klass())->is_linked()) {
 646       // link_class() should not return here if there is an issue.
 647       JVMCI_THROW_MSG_NULL(InternalError, err_msg("Class %s must be linked", resolved_klass()->external_name()));
 648     }
 649   }
 650   JVMCIObject klassObject = JVMCIENV->get_jvmci_type(resolved_klass, JVMCI_CHECK_NULL);
 651   return JVMCIENV->get_jobject(klassObject);
 652 C2V_END
 653 
 654 C2V_VMENTRY_NULL(jobject, lookupKlassInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 655   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 656   Klass* loading_klass = cp->pool_holder();
 657   bool is_accessible = false;
 658   JVMCIKlassHandle klass(THREAD, JVMCIRuntime::get_klass_by_index(cp, index, is_accessible, loading_klass));
 659   Symbol* symbol = NULL;
 660   if (klass.is_null()) {
 661     constantTag tag = cp->tag_at(index);
 662     if (tag.is_klass()) {
 663       // The klass has been inserted into the constant pool
 664       // very recently.
 665       klass = cp->resolved_klass_at(index);
 666     } else if (tag.is_symbol()) {
 667       symbol = cp->symbol_at(index);
 668     } else {
 669       assert(cp->tag_at(index).is_unresolved_klass(), "wrong tag");
 670       symbol = cp->klass_name_at(index);
 671     }
 672   }
 673   JVMCIObject result;
 674   if (!klass.is_null()) {
 675     result = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
 676   } else {
 677     result = JVMCIENV->create_string(symbol, JVMCI_CHECK_NULL);
 678   }
 679   return JVMCIENV->get_jobject(result);
 680 C2V_END
 681 
 682 C2V_VMENTRY_NULL(jobject, lookupAppendixInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 683   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 684   oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
 685   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(appendix_oop));
 686 C2V_END
 687 
 688 C2V_VMENTRY_NULL(jobject, lookupMethodInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 689   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 690   InstanceKlass* pool_holder = cp->pool_holder();
 691   Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
 692   methodHandle method = JVMCIRuntime::get_method_by_index(cp, index, bc, pool_holder);
 693   JVMCIObject result = JVMCIENV->get_jvmci_method(method, JVMCI_CHECK_NULL);
 694   return JVMCIENV->get_jobject(result);
 695 C2V_END
 696 
 697 C2V_VMENTRY_0(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
 698   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 699   return cp->remap_instruction_operand_from_cache(index);
 700 C2V_END
 701 
 702 C2V_VMENTRY_NULL(jobject, resolveFieldInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
 703   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
 704   Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
 705   fieldDescriptor fd;
 706   LinkInfo link_info(cp, index, (jvmci_method != NULL) ? JVMCIENV->asMethod(jvmci_method) : NULL, CHECK_0);
 707   LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
 708   JVMCIPrimitiveArray info = JVMCIENV->wrap(info_handle);
 709   if (info.is_null() || JVMCIENV->get_length(info) != 3) {
 710     JVMCI_ERROR_NULL("info must not be null and have a length of 3");
 711   }
 712   JVMCIENV->put_int_at(info, 0, fd.access_flags().as_int());
 713   JVMCIENV->put_int_at(info, 1, fd.offset());
 714   JVMCIENV->put_int_at(info, 2, fd.index());
 715   JVMCIKlassHandle handle(THREAD, fd.field_holder());
 716   JVMCIObject field_holder = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
 717   return JVMCIENV->get_jobject(field_holder);
 718 C2V_END
 719 
 720 C2V_VMENTRY_0(jint, getVtableIndexForInterfaceMethod, (JNIEnv* env, jobject, jobject jvmci_type, jobject jvmci_method))
 721   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 722   Method* method = JVMCIENV->asMethod(jvmci_method);
 723   if (klass->is_interface()) {
 724     JVMCI_THROW_MSG_0(InternalError, err_msg("Interface %s should be handled in Java code", klass->external_name()));
 725   }
 726   if (!method->method_holder()->is_interface()) {
 727     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()));
 728   }
 729   if (!klass->is_instance_klass()) {
 730     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
 731   }
 732   if (!InstanceKlass::cast(klass)->is_linked()) {
 733     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be linked", klass->external_name()));
 734   }
 735   return LinkResolver::vtable_index_of_interface_method(klass, method);
 736 C2V_END
 737 
 738 C2V_VMENTRY_NULL(jobject, resolveMethod, (JNIEnv* env, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
 739   Klass* recv_klass = JVMCIENV->asKlass(receiver_jvmci_type);
 740   Klass* caller_klass = JVMCIENV->asKlass(caller_jvmci_type);
 741   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 742 
 743   Klass* resolved     = method->method_holder();
 744   Symbol* h_name      = method->name();
 745   Symbol* h_signature = method->signature();
 746 
 747   if (MethodHandles::is_signature_polymorphic_method(method())) {
 748       // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
 749       return NULL;
 750   }
 751 
 752   if (method->name() == vmSymbols::clone_name() &&
 753       resolved == SystemDictionary::Object_klass() &&
 754       recv_klass->is_array_klass()) {
 755     // Resolution of the clone method on arrays always returns Object.clone even though that method
 756     // has protected access.  There's some trickery in the access checking to make this all work out
 757     // so it's necessary to pass in the array class as the resolved class to properly trigger this.
 758     // Otherwise it's impossible to resolve the array clone methods through JVMCI.  See
 759     // LinkResolver::check_method_accessability for the matching logic.
 760     resolved = recv_klass;
 761   }
 762 
 763   LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
 764   methodHandle m;
 765   // Only do exact lookup if receiver klass has been linked.  Otherwise,
 766   // the vtable has not been setup, and the LinkResolver will fail.
 767   if (recv_klass->is_array_klass() ||
 768       (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
 769     if (resolved->is_interface()) {
 770       m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
 771     } else {
 772       m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
 773     }
 774   }
 775 
 776   if (m.is_null()) {
 777     // Return NULL if there was a problem with lookup (uninitialized class, etc.)
 778     return NULL;
 779   }
 780 
 781   JVMCIObject result = JVMCIENV->get_jvmci_method(m, JVMCI_CHECK_NULL);
 782   return JVMCIENV->get_jobject(result);
 783 C2V_END
 784 
 785 C2V_VMENTRY_0(jboolean, hasFinalizableSubclass,(JNIEnv* env, jobject, jobject jvmci_type))
 786   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 787   assert(klass != NULL, "method must not be called for primitive types");
 788   return Dependencies::find_finalizable_subclass(klass) != NULL;
 789 C2V_END
 790 
 791 C2V_VMENTRY_NULL(jobject, getClassInitializer, (JNIEnv* env, jobject, jobject jvmci_type))
 792   Klass* klass = JVMCIENV->asKlass(jvmci_type);
 793   if (!klass->is_instance_klass()) {
 794     return NULL;
 795   }
 796   InstanceKlass* iklass = InstanceKlass::cast(klass);
 797   JVMCIObject result = JVMCIENV->get_jvmci_method(iklass->class_initializer(), JVMCI_CHECK_NULL);
 798   return JVMCIENV->get_jobject(result);
 799 C2V_END
 800 
 801 C2V_VMENTRY_0(jlong, getMaxCallTargetOffset, (JNIEnv* env, jobject, jlong addr))
 802   address target_addr = (address) addr;
 803   if (target_addr != 0x0) {
 804     int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
 805     int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
 806     return MAX2(ABS(off_low), ABS(off_high));
 807   }
 808   return -1;
 809 C2V_END
 810 
 811 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv* env, jobject,  jobject jvmci_method))
 812   methodHandle method = JVMCIENV->asMethod(jvmci_method);
 813   method->set_not_c1_compilable();
 814   method->set_not_c2_compilable();
 815   method->set_dont_inline(true);
 816 C2V_END
 817 
 818 C2V_VMENTRY_0(jint, installCode, (JNIEnv *env, jobject, jobject target, jobject compiled_code,
 819             jobject installed_code, jlong failed_speculations_address, jbyteArray speculations_obj))
 820   HandleMark hm;
 821   JNIHandleMark jni_hm(thread);
 822 
 823   JVMCIObject target_handle = JVMCIENV->wrap(target);
 824   JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
 825   CodeBlob* cb = NULL;
 826   JVMCIObject installed_code_handle = JVMCIENV->wrap(installed_code);
 827   JVMCIPrimitiveArray speculations_handle = JVMCIENV->wrap(speculations_obj);
 828 
 829   int speculations_len = JVMCIENV->get_length(speculations_handle);
 830   char* speculations = NEW_RESOURCE_ARRAY(char, speculations_len);
 831   JVMCIENV->copy_bytes_to(speculations_handle, (jbyte*) speculations, 0, speculations_len);
 832 
 833   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
 834 
 835   TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
 836   bool is_immutable_PIC = JVMCIENV->get_HotSpotCompiledCode_isImmutablePIC(compiled_code_handle) > 0;
 837 
 838   CodeInstaller installer(JVMCIENV, is_immutable_PIC);
 839   JVMCI::CodeInstallResult result = installer.install(compiler,
 840       target_handle,
 841       compiled_code_handle,
 842       cb,
 843       installed_code_handle,
 844       (FailedSpeculation**)(address) failed_speculations_address,
 845       speculations,
 846       speculations_len,
 847       JVMCI_CHECK_0);
 848 
 849   if (PrintCodeCacheOnCompilation) {
 850     stringStream s;
 851     // Dump code cache into a buffer before locking the tty,
 852     {
 853       MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
 854       CodeCache::print_summary(&s, false);
 855     }
 856     ttyLocker ttyl;
 857     tty->print_raw_cr(s.as_string());
 858   }
 859 
 860   if (result != JVMCI::ok) {
 861     assert(cb == NULL, "should be");
 862   } else {
 863     if (installed_code_handle.is_non_null()) {
 864       if (cb->is_nmethod()) {
 865         assert(JVMCIENV->isa_HotSpotNmethod(installed_code_handle), "wrong type");
 866         // Clear the link to an old nmethod first
 867         JVMCIObject nmethod_mirror = installed_code_handle;
 868         JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK_0);
 869       } else {
 870         assert(JVMCIENV->isa_InstalledCode(installed_code_handle), "wrong type");
 871       }
 872       // Initialize the link to the new code blob
 873       JVMCIENV->initialize_installed_code(installed_code_handle, cb, JVMCI_CHECK_0);
 874     }
 875   }
 876   return result;
 877 C2V_END
 878 
 879 C2V_VMENTRY_0(jint, getMetadata, (JNIEnv *env, jobject, jobject target, jobject compiled_code, jobject metadata))
 880 #if INCLUDE_AOT
 881   HandleMark hm;
 882   assert(JVMCIENV->is_hotspot(), "AOT code is executed only in HotSpot mode");
 883 
 884   JVMCIObject target_handle = JVMCIENV->wrap(target);
 885   JVMCIObject compiled_code_handle = JVMCIENV->wrap(compiled_code);
 886   JVMCIObject metadata_handle = JVMCIENV->wrap(metadata);
 887 
 888   CodeMetadata code_metadata;
 889 
 890   CodeInstaller installer(JVMCIENV, true /* immutable PIC compilation */);
 891   JVMCI::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, JVMCI_CHECK_0);
 892   if (result != JVMCI::ok) {
 893     return result;
 894   }
 895 
 896   if (code_metadata.get_nr_pc_desc() > 0) {
 897     int size = sizeof(PcDesc) * code_metadata.get_nr_pc_desc();
 898     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 899     JVMCIENV->copy_bytes_from((jbyte*) code_metadata.get_pc_desc(), array, 0, size);
 900     HotSpotJVMCI::HotSpotMetaData::set_pcDescBytes(JVMCIENV, metadata_handle, array);
 901   }
 902 
 903   if (code_metadata.get_scopes_size() > 0) {
 904     int size = code_metadata.get_scopes_size();
 905     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 906     JVMCIENV->copy_bytes_from((jbyte*) code_metadata.get_scopes_desc(), array, 0, size);
 907     HotSpotJVMCI::HotSpotMetaData::set_scopesDescBytes(JVMCIENV, metadata_handle, array);
 908   }
 909 
 910   RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
 911   int size = (int) reloc_buffer->size();
 912   JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 913   JVMCIENV->copy_bytes_from((jbyte*) reloc_buffer->begin(), array, 0, size);
 914   HotSpotJVMCI::HotSpotMetaData::set_relocBytes(JVMCIENV, metadata_handle, array);
 915 
 916   const OopMapSet* oopMapSet = installer.oopMapSet();
 917   {
 918     ResourceMark mark;
 919     ImmutableOopMapBuilder builder(oopMapSet);
 920     int size = builder.heap_size();
 921     JVMCIPrimitiveArray array = JVMCIENV->new_byteArray(size, JVMCI_CHECK_(JVMCI::cache_full));
 922     builder.generate_into((address) HotSpotJVMCI::resolve(array)->byte_at_addr(0));
 923     HotSpotJVMCI::HotSpotMetaData::set_oopMaps(JVMCIENV, metadata_handle, array);
 924   }
 925 
 926   AOTOopRecorder* recorder = code_metadata.get_oop_recorder();
 927 
 928   int nr_meta_refs = recorder->nr_meta_refs();
 929   JVMCIObjectArray metadataArray = JVMCIENV->new_Object_array(nr_meta_refs, JVMCI_CHECK_(JVMCI::cache_full));
 930   for (int i = 0; i < nr_meta_refs; ++i) {
 931     jobject element = recorder->meta_element(i);
 932     if (element == NULL) {
 933       return JVMCI::cache_full;
 934     }
 935     JVMCIENV->put_object_at(metadataArray, i, JVMCIENV->wrap(element));
 936   }
 937   HotSpotJVMCI::HotSpotMetaData::set_metadata(JVMCIENV, metadata_handle, metadataArray);
 938 
 939   ExceptionHandlerTable* handler = code_metadata.get_exception_table();
 940   int table_size = handler->size_in_bytes();
 941   JVMCIPrimitiveArray exceptionArray = JVMCIENV->new_byteArray(table_size, JVMCI_CHECK_(JVMCI::cache_full));
 942   if (table_size > 0) {
 943     handler->copy_bytes_to((address) HotSpotJVMCI::resolve(exceptionArray)->byte_at_addr(0));
 944   }
 945   HotSpotJVMCI::HotSpotMetaData::set_exceptionBytes(JVMCIENV, metadata_handle, exceptionArray);
 946 
 947   ImplicitExceptionTable* implicit = code_metadata.get_implicit_exception_table();
 948   int implicit_table_size = implicit->size_in_bytes();
 949   JVMCIPrimitiveArray implicitExceptionArray = JVMCIENV->new_byteArray(implicit_table_size, JVMCI_CHECK_(JVMCI::cache_full));
 950   if (implicit_table_size > 0) {
 951     implicit->copy_bytes_to((address) HotSpotJVMCI::resolve(implicitExceptionArray)->byte_at_addr(0), implicit_table_size);
 952   }
 953   HotSpotJVMCI::HotSpotMetaData::set_implicitExceptionBytes(JVMCIENV, metadata_handle, implicitExceptionArray);
 954 
 955   return result;
 956 #else
 957   JVMCI_THROW_MSG_0(InternalError, "unimplemented");
 958 #endif
 959 C2V_END
 960 
 961 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv* env, jobject))
 962   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
 963   CompilerStatistics* stats = compiler->stats();
 964   stats->_standard.reset();
 965   stats->_osr.reset();
 966 C2V_END
 967 
 968 C2V_VMENTRY_NULL(jobject, disassembleCodeBlob, (JNIEnv* env, jobject, jobject installedCode))
 969   HandleMark hm;
 970 
 971   if (installedCode == NULL) {
 972     JVMCI_THROW_MSG_NULL(NullPointerException, "installedCode is null");
 973   }
 974 
 975   JVMCIObject installedCodeObject = JVMCIENV->wrap(installedCode);
 976   nmethodLocker locker;
 977   CodeBlob* cb = JVMCIENV->get_code_blob(installedCodeObject, locker);
 978   if (cb == NULL) {
 979     return NULL;
 980   }
 981 
 982   // We don't want the stringStream buffer to resize during disassembly as it
 983   // uses scoped resource memory. If a nested function called during disassembly uses
 984   // a ResourceMark and the buffer expands within the scope of the mark,
 985   // the buffer becomes garbage when that scope is exited. Experience shows that
 986   // the disassembled code is typically about 10x the code size so a fixed buffer
 987   // sized to 20x code size plus a fixed amount for header info should be sufficient.
 988   int bufferSize = cb->code_size() * 20 + 1024;
 989   char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
 990   stringStream st(buffer, bufferSize);
 991   if (cb->is_nmethod()) {
 992     nmethod* nm = (nmethod*) cb;
 993     if (!nm->is_alive()) {
 994       return NULL;
 995     }
 996   }
 997   Disassembler::decode(cb, &st);
 998   if (st.size() <= 0) {
 999     return NULL;
1000   }
1001 
1002   JVMCIObject result = JVMCIENV->create_string(st.as_string(), JVMCI_CHECK_NULL);
1003   return JVMCIENV->get_jobject(result);
1004 C2V_END
1005 
1006 C2V_VMENTRY_NULL(jobject, getStackTraceElement, (JNIEnv* env, jobject, jobject jvmci_method, int bci))
1007   HandleMark hm;
1008 
1009   methodHandle method = JVMCIENV->asMethod(jvmci_method);
1010   JVMCIObject element = JVMCIENV->new_StackTraceElement(method, bci, JVMCI_CHECK_NULL);
1011   return JVMCIENV->get_jobject(element);
1012 C2V_END
1013 
1014 C2V_VMENTRY_NULL(jobject, executeHotSpotNmethod, (JNIEnv* env, jobject, jobject args, jobject hs_nmethod))
1015   // The incoming arguments array would have to contain JavaConstants instead of regular objects
1016   // and the return value would have to be wrapped as a JavaConstant.
1017   requireInHotSpot("executeHotSpotNmethod", JVMCI_CHECK_NULL);
1018 
1019   HandleMark hm;
1020 
1021   JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1022   nmethodLocker locker;
1023   nmethod* nm = JVMCIENV->get_nmethod(nmethod_mirror, locker);
1024   if (nm == NULL || !nm->is_in_use()) {
1025     JVMCI_THROW_NULL(InvalidInstalledCodeException);
1026   }
1027   methodHandle mh = nm->method();
1028   Symbol* signature = mh->signature();
1029   JavaCallArguments jca(mh->size_of_parameters());
1030 
1031   JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
1032   JavaValue result(jap.get_ret_type());
1033   jca.set_alternative_target(Handle(THREAD, JNIHandles::resolve(nmethod_mirror.as_jobject())));
1034   JavaCalls::call(&result, mh, &jca, CHECK_NULL);
1035 
1036   if (jap.get_ret_type() == T_VOID) {
1037     return NULL;
1038   } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
1039     return JNIHandles::make_local((oop) result.get_jobject());
1040   } else {
1041     jvalue *value = (jvalue *) result.get_value_addr();
1042     // Narrow the value down if required (Important on big endian machines)
1043     switch (jap.get_ret_type()) {
1044       case T_BOOLEAN:
1045        value->z = (jboolean) value->i;
1046        break;
1047       case T_BYTE:
1048        value->b = (jbyte) value->i;
1049        break;
1050       case T_CHAR:
1051        value->c = (jchar) value->i;
1052        break;
1053       case T_SHORT:
1054        value->s = (jshort) value->i;
1055        break;
1056       default:
1057         break;
1058     }
1059     JVMCIObject o = JVMCIENV->create_box(jap.get_ret_type(), value, JVMCI_CHECK_NULL);
1060     return JVMCIENV->get_jobject(o);
1061   }
1062 C2V_END
1063 
1064 C2V_VMENTRY_NULL(jlongArray, getLineNumberTable, (JNIEnv* env, jobject, jobject jvmci_method))
1065   Method* method = JVMCIENV->asMethod(jvmci_method);
1066   if (!method->has_linenumber_table()) {
1067     return NULL;
1068   }
1069   u2 num_entries = 0;
1070   CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
1071   while (streamForSize.read_pair()) {
1072     num_entries++;
1073   }
1074 
1075   CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
1076   JVMCIPrimitiveArray result = JVMCIENV->new_longArray(2 * num_entries, JVMCI_CHECK_NULL);
1077 
1078   int i = 0;
1079   jlong value;
1080   while (stream.read_pair()) {
1081     value = ((long) stream.bci());
1082     JVMCIENV->put_long_at(result, i, value);
1083     value = ((long) stream.line());
1084     JVMCIENV->put_long_at(result, i + 1, value);
1085     i += 2;
1086   }
1087 
1088   return (jlongArray) JVMCIENV->get_jobject(result);
1089 C2V_END
1090 
1091 C2V_VMENTRY_0(jlong, getLocalVariableTableStart, (JNIEnv* env, jobject, jobject jvmci_method))
1092   Method* method = JVMCIENV->asMethod(jvmci_method);
1093   if (!method->has_localvariable_table()) {
1094     return 0;
1095   }
1096   return (jlong) (address) method->localvariable_table_start();
1097 C2V_END
1098 
1099 C2V_VMENTRY_0(jint, getLocalVariableTableLength, (JNIEnv* env, jobject, jobject jvmci_method))
1100   Method* method = JVMCIENV->asMethod(jvmci_method);
1101   return method->localvariable_table_length();
1102 C2V_END
1103 
1104 C2V_VMENTRY(void, reprofile, (JNIEnv* env, jobject, jobject jvmci_method))
1105   Method* method = JVMCIENV->asMethod(jvmci_method);
1106   MethodCounters* mcs = method->method_counters();
1107   if (mcs != NULL) {
1108     mcs->clear_counters();
1109   }
1110   NOT_PRODUCT(method->set_compiled_invocation_count(0));
1111 
1112   CompiledMethod* code = method->code();
1113   if (code != NULL) {
1114     code->make_not_entrant();
1115   }
1116 
1117   MethodData* method_data = method->method_data();
1118   if (method_data == NULL) {
1119     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
1120     method_data = MethodData::allocate(loader_data, method, CHECK);
1121     method->set_method_data(method_data);
1122   } else {
1123     method_data->initialize();
1124   }
1125 C2V_END
1126 
1127 
1128 C2V_VMENTRY(void, invalidateHotSpotNmethod, (JNIEnv* env, jobject, jobject hs_nmethod))
1129   JVMCIObject nmethod_mirror = JVMCIENV->wrap(hs_nmethod);
1130   JVMCIENV->invalidate_nmethod_mirror(nmethod_mirror, JVMCI_CHECK);
1131 C2V_END
1132 
1133 C2V_VMENTRY_NULL(jobject, readUncompressedOop, (JNIEnv* env, jobject, jlong addr))
1134   oop ret = RawAccess<>::oop_load((oop*)(address)addr);
1135   return JVMCIENV->get_jobject(JVMCIENV->get_object_constant(ret));
1136  C2V_END
1137 
1138 C2V_VMENTRY_NULL(jlongArray, collectCounters, (JNIEnv* env, jobject))
1139   // Returns a zero length array if counters aren't enabled
1140   JVMCIPrimitiveArray array = JVMCIENV->new_longArray(JVMCICounterSize, JVMCI_CHECK_NULL);
1141   if (JVMCICounterSize > 0) {
1142     jlong* temp_array = NEW_RESOURCE_ARRAY(jlong, JVMCICounterSize);
1143     JavaThread::collect_counters(temp_array, JVMCICounterSize);
1144     JVMCIENV->copy_longs_from(temp_array, array, 0, JVMCICounterSize);
1145   }
1146   return (jlongArray) JVMCIENV->get_jobject(array);
1147 C2V_END
1148 
1149 C2V_VMENTRY_0(jint, getCountersSize, (JNIEnv* env, jobject))
1150   return (jint) JVMCICounterSize;
1151 C2V_END
1152 
1153 C2V_VMENTRY_0(jboolean, setCountersSize, (JNIEnv* env, jobject, jint new_size))
1154   return JavaThread::resize_all_jvmci_counters(new_size);
1155 C2V_END
1156 
1157 C2V_VMENTRY_0(jint, allocateCompileId, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci))
1158   HandleMark hm;
1159   if (jvmci_method == NULL) {
1160     JVMCI_THROW_0(NullPointerException);
1161   }
1162   Method* method = JVMCIENV->asMethod(jvmci_method);
1163   if (entry_bci >= method->code_size() || entry_bci < -1) {
1164     JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Unexpected bci %d", entry_bci));
1165   }
1166   return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
1167 C2V_END
1168 
1169 
1170 C2V_VMENTRY_0(jboolean, isMature, (JNIEnv* env, jobject, jlong metaspace_method_data))
1171   MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1172   return mdo != NULL && mdo->is_mature();
1173 C2V_END
1174 
1175 C2V_VMENTRY_0(jboolean, hasCompiledCodeForOSR, (JNIEnv* env, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1176   Method* method = JVMCIENV->asMethod(jvmci_method);
1177   return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1178 C2V_END
1179 
1180 C2V_VMENTRY_NULL(jobject, getSymbol, (JNIEnv* env, jobject, jlong symbol))
1181   JVMCIObject sym = JVMCIENV->create_string((Symbol*)(address)symbol, JVMCI_CHECK_NULL);
1182   return JVMCIENV->get_jobject(sym);
1183 C2V_END
1184 
1185 bool matches(jobjectArray methods, Method* method, JVMCIEnv* JVMCIENV) {
1186   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1187 
1188   for (int i = 0; i < methods_oop->length(); i++) {
1189     oop resolved = methods_oop->obj_at(i);
1190     if ((resolved->klass() == HotSpotJVMCI::HotSpotResolvedJavaMethodImpl::klass()) && HotSpotJVMCI::asMethod(JVMCIENV, resolved) == method) {
1191       return true;
1192     }
1193   }
1194   return false;
1195 }
1196 
1197 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
1198   CallInfo callinfo;
1199   Handle receiver = args->receiver();
1200   Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
1201   LinkInfo link_info(spec_klass, name, signature);
1202   LinkResolver::resolve_interface_call(
1203           callinfo, receiver, recvrKlass, link_info, true, CHECK);
1204   methodHandle method = callinfo.selected_method();
1205   assert(method.not_null(), "should have thrown exception");
1206 
1207   // Invoke the method
1208   JavaCalls::call(result, method, args, CHECK);
1209 }
1210 
1211 C2V_VMENTRY_NULL(jobject, iterateFrames, (JNIEnv* env, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
1212 
1213   if (!thread->has_last_Java_frame()) {
1214     return NULL;
1215   }
1216   Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1217 
1218   requireInHotSpot("iterateFrames", JVMCI_CHECK_NULL);
1219 
1220   HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1221   Handle frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1222 
1223   StackFrameStream fst(thread);
1224   jobjectArray methods = initial_methods;
1225 
1226   int frame_number = 0;
1227   vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1228 
1229   while (true) {
1230     // look for the given method
1231     bool realloc_called = false;
1232     while (true) {
1233       StackValueCollection* locals = NULL;
1234       if (vf->is_compiled_frame()) {
1235         // compiled method frame
1236         compiledVFrame* cvf = compiledVFrame::cast(vf);
1237         if (methods == NULL || matches(methods, cvf->method(), JVMCIENV)) {
1238           if (initialSkip > 0) {
1239             initialSkip--;
1240           } else {
1241             ScopeDesc* scope = cvf->scope();
1242             // native wrappers do not have a scope
1243             if (scope != NULL && scope->objects() != NULL) {
1244               GrowableArray<ScopeValue*>* objects;
1245               if (!realloc_called) {
1246                 objects = scope->objects();
1247               } else {
1248                 // some object might already have been re-allocated, only reallocate the non-allocated ones
1249                 objects = new GrowableArray<ScopeValue*>(scope->objects()->length());
1250                 for (int i = 0; i < scope->objects()->length(); i++) {
1251                   ObjectValue* sv = (ObjectValue*) scope->objects()->at(i);
1252                   if (sv->value().is_null()) {
1253                     objects->append(sv);
1254                   }
1255                 }
1256               }
1257               bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), fst.register_map(), objects, CHECK_NULL);
1258               Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1259               realloc_called = true;
1260 
1261               GrowableArray<ScopeValue*>* local_values = scope->locals();
1262               assert(local_values != NULL, "NULL locals");
1263               typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1264               typeArrayHandle array(THREAD, array_oop);
1265               for (int i = 0; i < local_values->length(); i++) {
1266                 ScopeValue* value = local_values->at(i);
1267                 if (value->is_object()) {
1268                   array->bool_at_put(i, true);
1269                 }
1270               }
1271               HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), array());
1272             } else {
1273               HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1274             }
1275 
1276             locals = cvf->locals();
1277             HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), cvf->bci());
1278             JVMCIObject method = JVMCIENV->get_jvmci_method(cvf->method(), JVMCI_CHECK_NULL);
1279             HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1280           }
1281         }
1282       } else if (vf->is_interpreted_frame()) {
1283         // interpreted method frame
1284         interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1285         if (methods == NULL || matches(methods, ivf->method(), JVMCIENV)) {
1286           if (initialSkip > 0) {
1287             initialSkip--;
1288           } else {
1289             locals = ivf->locals();
1290             HotSpotJVMCI::HotSpotStackFrameReference::set_bci(JVMCIENV, frame_reference(), ivf->bci());
1291             JVMCIObject method = JVMCIENV->get_jvmci_method(ivf->method(), JVMCI_CHECK_NULL);
1292             HotSpotJVMCI::HotSpotStackFrameReference::set_method(JVMCIENV, frame_reference(), JNIHandles::resolve(method.as_jobject()));
1293             HotSpotJVMCI::HotSpotStackFrameReference::set_localIsVirtual(JVMCIENV, frame_reference(), NULL);
1294           }
1295         }
1296       }
1297 
1298       // locals != NULL means that we found a matching frame and result is already partially initialized
1299       if (locals != NULL) {
1300         methods = match_methods;
1301         HotSpotJVMCI::HotSpotStackFrameReference::set_compilerToVM(JVMCIENV, frame_reference(), JNIHandles::resolve(compilerToVM));
1302         HotSpotJVMCI::HotSpotStackFrameReference::set_stackPointer(JVMCIENV, frame_reference(), (jlong) fst.current()->sp());
1303         HotSpotJVMCI::HotSpotStackFrameReference::set_frameNumber(JVMCIENV, frame_reference(), frame_number);
1304 
1305         // initialize the locals array
1306         objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1307         objArrayHandle array(THREAD, array_oop);
1308         for (int i = 0; i < locals->size(); i++) {
1309           StackValue* var = locals->at(i);
1310           if (var->type() == T_OBJECT) {
1311             array->obj_at_put(i, locals->at(i)->get_obj()());
1312           }
1313         }
1314         HotSpotJVMCI::HotSpotStackFrameReference::set_locals(JVMCIENV, frame_reference(), array());
1315         HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, frame_reference(), JNI_FALSE);
1316 
1317         JavaValue result(T_OBJECT);
1318         JavaCallArguments args(visitor);
1319         args.push_oop(frame_reference);
1320         call_interface(&result, HotSpotJVMCI::InspectedFrameVisitor::klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1321         if (result.get_jobject() != NULL) {
1322           return JNIHandles::make_local(thread, (oop) result.get_jobject());
1323         }
1324         assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1325         if (HotSpotJVMCI::HotSpotStackFrameReference::objectsMaterialized(JVMCIENV, frame_reference()) == JNI_TRUE) {
1326           // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1327           intptr_t* stack_pointer = (intptr_t*) HotSpotJVMCI::HotSpotStackFrameReference::stackPointer(JVMCIENV, frame_reference());
1328           fst = StackFrameStream(thread);
1329           while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1330             fst.next();
1331           }
1332           if (fst.current()->sp() != stack_pointer) {
1333             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1334           }
1335           vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1336           if (!vf->is_compiled_frame()) {
1337             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1338           }
1339           for (int i = 0; i < frame_number; i++) {
1340             if (vf->is_top()) {
1341               THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1342             }
1343             vf = vf->sender();
1344             assert(vf->is_compiled_frame(), "Wrong frame type");
1345           }
1346         }
1347         frame_reference = HotSpotJVMCI::HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1348         HotSpotJVMCI::HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1349       }
1350 
1351       if (vf->is_top()) {
1352         break;
1353       }
1354       frame_number++;
1355       vf = vf->sender();
1356     } // end of vframe loop
1357 
1358     if (fst.is_done()) {
1359       break;
1360     }
1361     fst.next();
1362     vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1363     frame_number = 0;
1364   } // end of frame loop
1365 
1366   // the end was reached without finding a matching method
1367   return NULL;
1368 C2V_END
1369 
1370 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1371   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1372   CallInfo callInfo;
1373   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1374   ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1375   cp_cache_entry->set_dynamic_call(cp, callInfo);
1376 C2V_END
1377 
1378 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1379   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1380   Klass* holder = cp->klass_ref_at(index, CHECK);
1381   Symbol* name = cp->name_ref_at(index);
1382   if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1383     CallInfo callInfo;
1384     LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1385     ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1386     cp_cache_entry->set_method_handle(cp, callInfo);
1387   }
1388 C2V_END
1389 
1390 C2V_VMENTRY_0(jint, isResolvedInvokeHandleInPool, (JNIEnv* env, jobject, jobject jvmci_constant_pool, jint index))
1391   constantPoolHandle cp = JVMCIENV->asConstantPool(jvmci_constant_pool);
1392   ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1393   if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1394     // MethodHandle.invoke* --> LambdaForm?
1395     ResourceMark rm;
1396 
1397     LinkInfo link_info(cp, index, CATCH);
1398 
1399     Klass* resolved_klass = link_info.resolved_klass();
1400 
1401     Symbol* name_sym = cp->name_ref_at(index);
1402 
1403     vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1404     vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1405 
1406     methodHandle adapter_method(cp_cache_entry->f1_as_method());
1407 
1408     methodHandle resolved_method(adapter_method);
1409 
1410     // Can we treat it as a regular invokevirtual?
1411     if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1412       vmassert(!resolved_method->is_static(),"!");
1413       vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1414       vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1415       vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1416       vmassert(cp_cache_entry->method_type_if_resolved(cp) == NULL, "!");
1417 
1418       methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1419       vmassert(m == resolved_method, "!!");
1420       return -1;
1421     }
1422 
1423     return Bytecodes::_invokevirtual;
1424   }
1425   if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1426     return Bytecodes::_invokedynamic;
1427   }
1428   return -1;
1429 C2V_END
1430 
1431 
1432 C2V_VMENTRY_NULL(jobject, getSignaturePolymorphicHolders, (JNIEnv* env, jobject))
1433   JVMCIObjectArray holders = JVMCIENV->new_String_array(2, JVMCI_CHECK_NULL);
1434   JVMCIObject mh = JVMCIENV->create_string("Ljava/lang/invoke/MethodHandle;", JVMCI_CHECK_NULL);
1435   JVMCIObject vh = JVMCIENV->create_string("Ljava/lang/invoke/VarHandle;", JVMCI_CHECK_NULL);
1436   JVMCIENV->put_object_at(holders, 0, mh);
1437   JVMCIENV->put_object_at(holders, 1, vh);
1438   return JVMCIENV->get_jobject(holders);
1439 C2V_END
1440 
1441 C2V_VMENTRY_0(jboolean, shouldDebugNonSafepoints, (JNIEnv* env, jobject))
1442   //see compute_recording_non_safepoints in debugInfroRec.cpp
1443   if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1444     return true;
1445   }
1446   return DebugNonSafepoints;
1447 C2V_END
1448 
1449 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1450 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv* env, jobject, jobject _hs_frame, bool invalidate))
1451   JVMCIObject hs_frame = JVMCIENV->wrap(_hs_frame);
1452   if (hs_frame.is_null()) {
1453     JVMCI_THROW_MSG(NullPointerException, "stack frame is null");
1454   }
1455 
1456   requireInHotSpot("materializeVirtualObjects", JVMCI_CHECK);
1457 
1458   JVMCIENV->HotSpotStackFrameReference_initialize(JVMCI_CHECK);
1459 
1460   // look for the given stack frame
1461   StackFrameStream fst(thread);
1462   intptr_t* stack_pointer = (intptr_t*) JVMCIENV->get_HotSpotStackFrameReference_stackPointer(hs_frame);
1463   while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1464     fst.next();
1465   }
1466   if (fst.current()->sp() != stack_pointer) {
1467     JVMCI_THROW_MSG(IllegalStateException, "stack frame not found");
1468   }
1469 
1470   if (invalidate) {
1471     if (!fst.current()->is_compiled_frame()) {
1472       JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1473     }
1474     assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1475     ((nmethod*) fst.current()->cb())->make_not_entrant();
1476   }
1477   Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1478   // look for the frame again as it has been updated by deopt (pc, deopt state...)
1479   StackFrameStream fstAfterDeopt(thread);
1480   while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1481     fstAfterDeopt.next();
1482   }
1483   if (fstAfterDeopt.current()->sp() != stack_pointer) {
1484     JVMCI_THROW_MSG(IllegalStateException, "stack frame not found after deopt");
1485   }
1486 
1487   vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1488   if (!vf->is_compiled_frame()) {
1489     JVMCI_THROW_MSG(IllegalStateException, "compiled stack frame expected");
1490   }
1491 
1492   GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1493   while (true) {
1494     assert(vf->is_compiled_frame(), "Wrong frame type");
1495     virtualFrames->push(compiledVFrame::cast(vf));
1496     if (vf->is_top()) {
1497       break;
1498     }
1499     vf = vf->sender();
1500   }
1501 
1502   int last_frame_number = JVMCIENV->get_HotSpotStackFrameReference_frameNumber(hs_frame);
1503   if (last_frame_number >= virtualFrames->length()) {
1504     JVMCI_THROW_MSG(IllegalStateException, "invalid frame number");
1505   }
1506 
1507   // Reallocate the non-escaping objects and restore their fields.
1508   assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1509   GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1510 
1511   if (objects == NULL) {
1512     // no objects to materialize
1513     return;
1514   }
1515 
1516   bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, CHECK);
1517   Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1518 
1519   for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1520     compiledVFrame* cvf = virtualFrames->at(frame_index);
1521 
1522     GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1523     StackValueCollection* locals = cvf->locals();
1524     if (locals != NULL) {
1525       for (int i2 = 0; i2 < locals->size(); i2++) {
1526         StackValue* var = locals->at(i2);
1527         if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1528           jvalue val;
1529           val.l = (jobject) locals->at(i2)->get_obj()();
1530           cvf->update_local(T_OBJECT, i2, val);
1531         }
1532       }
1533     }
1534 
1535     GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1536     StackValueCollection* expressions = cvf->expressions();
1537     if (expressions != NULL) {
1538       for (int i2 = 0; i2 < expressions->size(); i2++) {
1539         StackValue* var = expressions->at(i2);
1540         if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1541           jvalue val;
1542           val.l = (jobject) expressions->at(i2)->get_obj()();
1543           cvf->update_stack(T_OBJECT, i2, val);
1544         }
1545       }
1546     }
1547 
1548     GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1549     GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1550     if (monitors != NULL) {
1551       for (int i2 = 0; i2 < monitors->length(); i2++) {
1552         cvf->update_monitor(i2, monitors->at(i2));
1553       }
1554     }
1555   }
1556 
1557   // all locals are materialized by now
1558   JVMCIENV->set_HotSpotStackFrameReference_localIsVirtual(hs_frame, NULL);
1559   // update the locals array
1560   JVMCIObjectArray array = JVMCIENV->get_HotSpotStackFrameReference_locals(hs_frame);
1561   StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1562   for (int i = 0; i < locals->size(); i++) {
1563     StackValue* var = locals->at(i);
1564     if (var->type() == T_OBJECT) {
1565       JVMCIENV->put_object_at(array, i, HotSpotJVMCI::wrap(locals->at(i)->get_obj()()));
1566     }
1567   }
1568   HotSpotJVMCI::HotSpotStackFrameReference::set_objectsMaterialized(JVMCIENV, hs_frame, JNI_TRUE);
1569 C2V_END
1570 
1571 // Creates a scope where the current thread is attached and detached
1572 // from HotSpot if it wasn't already attached when entering the scope.
1573 extern "C" void jio_printf(const char *fmt, ...);
1574 class AttachDetach : public StackObj {
1575  public:
1576   bool _attached;
1577   AttachDetach(JNIEnv* env, Thread* current_thread) {
1578     if (current_thread == NULL) {
1579       extern struct JavaVM_ main_vm;
1580       JNIEnv* hotspotEnv;
1581       jint res = main_vm.AttachCurrentThread((void**)&hotspotEnv, NULL);
1582       _attached = res == JNI_OK;
1583       static volatile int report_attach_error = 0;
1584       if (res != JNI_OK && report_attach_error == 0 && Atomic::cmpxchg(1, &report_attach_error, 0) == 0) {
1585         // Only report an attach error once
1586         jio_printf("Warning: attaching current thread to VM failed with %d (future attach errors are suppressed)\n", res);
1587       }
1588     } else {
1589       _attached = false;
1590     }
1591   }
1592   ~AttachDetach() {
1593     if (_attached && get_current_thread() != NULL) {
1594       extern struct JavaVM_ main_vm;
1595       jint res = main_vm.DetachCurrentThread();
1596       static volatile int report_detach_error = 0;
1597       if (res != JNI_OK && report_detach_error == 0 && Atomic::cmpxchg(1, &report_detach_error, 0) == 0) {
1598         // Only report an attach error once
1599         jio_printf("Warning: detaching current thread from VM failed with %d (future attach errors are suppressed)\n", res);
1600       }
1601     }
1602   }
1603 };
1604 
1605 C2V_VMENTRY_PREFIX(jint, writeDebugOutput, (JNIEnv* env, jobject, jbyteArray bytes, jint offset, jint length, bool flush, bool can_throw))
1606   AttachDetach ad(env, base_thread);
1607   bool use_tty = true;
1608   if (base_thread == NULL) {
1609     if (!ad._attached) {
1610       // Can only use tty if the current thread is attached

1611       return 0;
1612     }
1613     base_thread = get_current_thread();
1614   }
1615   JVMCITraceMark jtm("writeDebugOutput");
1616   assert(base_thread->is_Java_thread(), "just checking");
1617   JavaThread* thread = (JavaThread*) base_thread;
1618   C2V_BLOCK(void, writeDebugOutput, (JNIEnv* env, jobject, jbyteArray bytes, jint offset, jint length))
1619   if (bytes == NULL) {
1620     if (can_throw) {
1621       JVMCI_THROW_0(NullPointerException);
1622     }
1623     return -1;
1624   }
1625   JVMCIPrimitiveArray array = JVMCIENV->wrap(bytes);
1626 
1627   // Check if offset and length are non negative.
1628   if (offset < 0 || length < 0) {
1629     if (can_throw) {
1630       JVMCI_THROW_0(ArrayIndexOutOfBoundsException);
1631     }
1632     return -2;
1633   }
1634   // Check if the range is valid.
1635   int array_length = JVMCIENV->get_length(array);
1636   if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array_length)) {
1637     if (can_throw) {
1638       JVMCI_THROW_0(ArrayIndexOutOfBoundsException);
1639     }
1640     return -2;
1641   }
1642   jbyte buffer[O_BUFLEN];
1643   while (length > 0) {
1644     int copy_len = MIN2(length, (jint)O_BUFLEN);
1645     JVMCIENV->copy_bytes_to(array, buffer, offset, copy_len);
1646     tty->write((char*) buffer, copy_len);
1647     length -= O_BUFLEN;
1648     offset += O_BUFLEN;
1649   }
1650   if (flush) {
1651     tty->flush();
1652   }
1653   return 0;
1654 C2V_END
1655 
1656 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv* env, jobject))
1657   tty->flush();
1658 C2V_END
1659 
1660 C2V_VMENTRY_0(jint, methodDataProfileDataSize, (JNIEnv* env, jobject, jlong metaspace_method_data, jint position))
1661   MethodData* mdo = JVMCIENV->asMethodData(metaspace_method_data);
1662   ProfileData* profile_data = mdo->data_at(position);
1663   if (mdo->is_valid(profile_data)) {
1664     return profile_data->size_in_bytes();
1665   }
1666   DataLayout* data    = mdo->extra_data_base();
1667   DataLayout* end   = mdo->extra_data_limit();
1668   for (;; data = mdo->next_extra(data)) {
1669     assert(data < end, "moved past end of extra data");
1670     profile_data = data->data_in();
1671     if (mdo->dp_to_di(profile_data->dp()) == position) {
1672       return profile_data->size_in_bytes();
1673     }
1674   }
1675   JVMCI_THROW_MSG_0(IllegalArgumentException, err_msg("Invalid profile data position %d", position));
1676 C2V_END
1677 
1678 C2V_VMENTRY_0(jlong, getFingerprint, (JNIEnv* env, jobject, jlong metaspace_klass))
1679 #if INCLUDE_AOT
1680   Klass *k = (Klass*) (address) metaspace_klass;
1681   if (k->is_instance_klass()) {
1682     return InstanceKlass::cast(k)->get_stored_fingerprint();
1683   } else {
1684     return 0;
1685   }
1686 #else
1687   JVMCI_THROW_MSG_0(InternalError, "unimplemented");
1688 #endif
1689 C2V_END
1690 
1691 C2V_VMENTRY_NULL(jobject, getHostClass, (JNIEnv* env, jobject, jobject jvmci_type))
1692   InstanceKlass* k = InstanceKlass::cast(JVMCIENV->asKlass(jvmci_type));
1693   InstanceKlass* host = k->host_klass();
1694   JVMCIKlassHandle handle(THREAD, host);
1695   JVMCIObject result = JVMCIENV->get_jvmci_type(handle, JVMCI_CHECK_NULL);
1696   return JVMCIENV->get_jobject(result);
1697 C2V_END
1698 
1699 C2V_VMENTRY_NULL(jobject, getInterfaces, (JNIEnv* env, jobject, jobject jvmci_type))
1700   if (jvmci_type == NULL) {
1701     JVMCI_THROW_0(NullPointerException);
1702   }
1703 
1704   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1705   if (klass == NULL) {
1706     JVMCI_THROW_0(NullPointerException);
1707   }
1708   if (!klass->is_instance_klass()) {
1709     JVMCI_THROW_MSG_0(InternalError, err_msg("Class %s must be instance klass", klass->external_name()));
1710   }
1711   InstanceKlass* iklass = InstanceKlass::cast(klass);
1712 
1713   // Regular instance klass, fill in all local interfaces
1714   int size = iklass->local_interfaces()->length();
1715   JVMCIObjectArray interfaces = JVMCIENV->new_HotSpotResolvedObjectTypeImpl_array(size, JVMCI_CHECK_NULL);
1716   for (int index = 0; index < size; index++) {
1717     JVMCIKlassHandle klass(THREAD);
1718     Klass* k = iklass->local_interfaces()->at(index);
1719     klass = k;
1720     JVMCIObject type = JVMCIENV->get_jvmci_type(klass, JVMCI_CHECK_NULL);
1721     JVMCIENV->put_object_at(interfaces, index, type);
1722   }
1723   return JVMCIENV->get_jobject(interfaces);
1724 C2V_END
1725 
1726 C2V_VMENTRY_NULL(jobject, getComponentType, (JNIEnv* env, jobject, jobject jvmci_type))
1727   if (jvmci_type == NULL) {
1728     JVMCI_THROW_0(NullPointerException);
1729   }
1730 
1731   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1732   oop mirror = klass->java_mirror();
1733   if (java_lang_Class::is_primitive(mirror) ||
1734       !java_lang_Class::as_Klass(mirror)->is_array_klass()) {
1735     return NULL;
1736   }
1737 
1738   oop component_mirror = java_lang_Class::component_mirror(mirror);
1739   if (component_mirror == NULL) {
1740     return NULL;
1741   }
1742   Klass* component_klass = java_lang_Class::as_Klass(component_mirror);
1743   if (component_klass != NULL) {
1744     JVMCIKlassHandle klass_handle(THREAD);
1745     klass_handle = component_klass;
1746     JVMCIObject result = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
1747     return JVMCIENV->get_jobject(result);
1748   }
1749   BasicType type = java_lang_Class::primitive_type(component_mirror);
1750   JVMCIObject result = JVMCIENV->get_jvmci_primitive_type(type);
1751   return JVMCIENV->get_jobject(result);
1752 C2V_END
1753 
1754 C2V_VMENTRY(void, ensureInitialized, (JNIEnv* env, jobject, jobject jvmci_type))
1755   if (jvmci_type == NULL) {
1756     JVMCI_THROW(NullPointerException);
1757   }
1758 
1759   Klass* klass = JVMCIENV->asKlass(jvmci_type);
1760   if (klass != NULL && klass->should_be_initialized()) {
1761     InstanceKlass* k = InstanceKlass::cast(klass);
1762     k->initialize(CHECK);
1763   }
1764 C2V_END
1765 
1766 C2V_VMENTRY_0(jint, interpreterFrameSize, (JNIEnv* env, jobject, jobject bytecode_frame_handle))
1767   if (bytecode_frame_handle == NULL) {
1768     JVMCI_THROW_0(NullPointerException);
1769   }
1770 
1771   JVMCIObject top_bytecode_frame = JVMCIENV->wrap(bytecode_frame_handle);
1772   JVMCIObject bytecode_frame = top_bytecode_frame;
1773   int size = 0;
1774   int callee_parameters = 0;
1775   int callee_locals = 0;
1776   Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1777   int extra_args = method->max_stack() - JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1778 
1779   while (bytecode_frame.is_non_null()) {
1780     int locks = JVMCIENV->get_BytecodeFrame_numLocks(bytecode_frame);
1781     int temps = JVMCIENV->get_BytecodeFrame_numStack(bytecode_frame);
1782     bool is_top_frame = (JVMCIENV->equals(bytecode_frame, top_bytecode_frame));
1783     Method* method = JVMCIENV->asMethod(JVMCIENV->get_BytecodePosition_method(bytecode_frame));
1784 
1785     int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1786                                                                  temps + callee_parameters,
1787                                                                  extra_args,
1788                                                                  locks,
1789                                                                  callee_parameters,
1790                                                                  callee_locals,
1791                                                                  is_top_frame);
1792     size += frame_size;
1793 
1794     callee_parameters = method->size_of_parameters();
1795     callee_locals = method->max_locals();
1796     extra_args = 0;
1797     bytecode_frame = JVMCIENV->get_BytecodePosition_caller(bytecode_frame);
1798   }
1799   return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1800 C2V_END
1801 
1802 C2V_VMENTRY(void, compileToBytecode, (JNIEnv* env, jobject, jobject lambda_form_handle))
1803   Handle lambda_form = JVMCIENV->asConstant(JVMCIENV->wrap(lambda_form_handle), JVMCI_CHECK);
1804   if (lambda_form->is_a(SystemDictionary::LambdaForm_klass())) {
1805     TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode", CHECK);
1806     JavaValue result(T_VOID);
1807     JavaCalls::call_special(&result, lambda_form, SystemDictionary::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1808   } else {
1809     JVMCI_THROW_MSG(IllegalArgumentException,
1810                     err_msg("Unexpected type: %s", lambda_form->klass()->external_name()))
1811   }
1812 C2V_END
1813 
1814 C2V_VMENTRY_0(jint, getIdentityHashCode, (JNIEnv* env, jobject, jobject object))
1815   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1816   return obj->identity_hash();
1817 C2V_END
1818 
1819 C2V_VMENTRY_0(jboolean, isInternedString, (JNIEnv* env, jobject, jobject object))
1820   Handle str = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
1821   if (!java_lang_String::is_instance(str())) {
1822     return false;
1823   }
1824   int len;
1825   jchar* name = java_lang_String::as_unicode_string(str(), len, CHECK_0);
1826   return (StringTable::lookup(name, len) != NULL);
1827 C2V_END
1828 
1829 
1830 C2V_VMENTRY_NULL(jobject, unboxPrimitive, (JNIEnv* env, jobject, jobject object))
1831   if (object == NULL) {
1832     JVMCI_THROW_0(NullPointerException);
1833   }
1834   Handle box = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
1835   BasicType type = java_lang_boxing_object::basic_type(box());
1836   jvalue result;
1837   if (java_lang_boxing_object::get_value(box(), &result) == T_ILLEGAL) {
1838     return NULL;
1839   }
1840   JVMCIObject boxResult = JVMCIENV->create_box(type, &result, JVMCI_CHECK_NULL);
1841   return JVMCIENV->get_jobject(boxResult);
1842 C2V_END
1843 
1844 C2V_VMENTRY_NULL(jobject, boxPrimitive, (JNIEnv* env, jobject, jobject object))
1845   if (object == NULL) {
1846     JVMCI_THROW_0(NullPointerException);
1847   }
1848   JVMCIObject box = JVMCIENV->wrap(object);
1849   BasicType type = JVMCIENV->get_box_type(box);
1850   if (type == T_ILLEGAL) {
1851     return NULL;
1852   }
1853   jvalue value = JVMCIENV->get_boxed_value(type, box);
1854   JavaValue box_result(T_OBJECT);
1855   JavaCallArguments jargs;
1856   Klass* box_klass = NULL;
1857   Symbol* box_signature = NULL;
1858 #define BOX_CASE(bt, v, argtype, name)           \
1859   case bt: \
1860     jargs.push_##argtype(value.v); \
1861     box_klass = SystemDictionary::name##_klass(); \
1862     box_signature = vmSymbols::name##_valueOf_signature(); \
1863     break
1864 
1865   switch (type) {
1866     BOX_CASE(T_BOOLEAN, z, int, Boolean);
1867     BOX_CASE(T_BYTE, b, int, Byte);
1868     BOX_CASE(T_CHAR, c, int, Character);
1869     BOX_CASE(T_SHORT, s, int, Short);
1870     BOX_CASE(T_INT, i, int, Integer);
1871     BOX_CASE(T_LONG, j, long, Long);
1872     BOX_CASE(T_FLOAT, f, float, Float);
1873     BOX_CASE(T_DOUBLE, d, double, Double);
1874     default:
1875       ShouldNotReachHere();
1876   }
1877 #undef BOX_CASE
1878 
1879   JavaCalls::call_static(&box_result,
1880                          box_klass,
1881                          vmSymbols::valueOf_name(),
1882                          box_signature, &jargs, CHECK_NULL);
1883   oop hotspot_box = (oop) box_result.get_jobject();
1884   JVMCIObject result = JVMCIENV->get_object_constant(hotspot_box, false);
1885   return JVMCIENV->get_jobject(result);
1886 C2V_END
1887 
1888 C2V_VMENTRY_NULL(jobjectArray, getDeclaredConstructors, (JNIEnv* env, jobject, jobject holder))
1889   if (holder == NULL) {
1890     JVMCI_THROW_0(NullPointerException);
1891   }
1892   Klass* klass = JVMCIENV->asKlass(holder);
1893   if (!klass->is_instance_klass()) {
1894     JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1895     return JVMCIENV->get_jobjectArray(methods);
1896   }
1897 
1898   InstanceKlass* iklass = InstanceKlass::cast(klass);
1899   // Ensure class is linked
1900   iklass->link_class(CHECK_NULL);
1901 
1902   GrowableArray<Method*> constructors_array;
1903   for (int i = 0; i < iklass->methods()->length(); i++) {
1904     Method* m = iklass->methods()->at(i);
1905     if (m->is_initializer() && !m->is_static()) {
1906       constructors_array.append(m);
1907     }
1908   }
1909   JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(constructors_array.length(), JVMCI_CHECK_NULL);
1910   for (int i = 0; i < constructors_array.length(); i++) {
1911     JVMCIObject method = JVMCIENV->get_jvmci_method(constructors_array.at(i), JVMCI_CHECK_NULL);
1912     JVMCIENV->put_object_at(methods, i, method);
1913   }
1914   return JVMCIENV->get_jobjectArray(methods);
1915 C2V_END
1916 
1917 C2V_VMENTRY_NULL(jobjectArray, getDeclaredMethods, (JNIEnv* env, jobject, jobject holder))
1918   if (holder == NULL) {
1919     JVMCI_THROW_0(NullPointerException);
1920   }
1921   Klass* klass = JVMCIENV->asKlass(holder);
1922   if (!klass->is_instance_klass()) {
1923     JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(0, JVMCI_CHECK_NULL);
1924     return JVMCIENV->get_jobjectArray(methods);
1925   }
1926 
1927   InstanceKlass* iklass = InstanceKlass::cast(klass);
1928   // Ensure class is linked
1929   iklass->link_class(CHECK_NULL);
1930 
1931   GrowableArray<Method*> methods_array;
1932   for (int i = 0; i < iklass->methods()->length(); i++) {
1933     Method* m = iklass->methods()->at(i);
1934     if (!m->is_initializer() && !m->is_overpass()) {
1935       methods_array.append(m);
1936     }
1937   }
1938   JVMCIObjectArray methods = JVMCIENV->new_ResolvedJavaMethod_array(methods_array.length(), JVMCI_CHECK_NULL);
1939   for (int i = 0; i < methods_array.length(); i++) {
1940     JVMCIObject method = JVMCIENV->get_jvmci_method(methods_array.at(i), JVMCI_CHECK_NULL);
1941     JVMCIENV->put_object_at(methods, i, method);
1942   }
1943   return JVMCIENV->get_jobjectArray(methods);
1944 C2V_END
1945 
1946 C2V_VMENTRY_NULL(jobject, readFieldValue, (JNIEnv* env, jobject, jobject object, jobject field, jboolean is_volatile))
1947   if (object == NULL || field == NULL) {
1948     JVMCI_THROW_0(NullPointerException);
1949   }
1950   JVMCIObject field_object = JVMCIENV->wrap(field);
1951   JVMCIObject java_type = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_type(field_object);
1952   int modifiers = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_modifiers(field_object);
1953   Klass* holder = JVMCIENV->asKlass(JVMCIENV->get_HotSpotResolvedJavaFieldImpl_holder(field_object));
1954   if (!holder->is_instance_klass()) {
1955     JVMCI_THROW_MSG_0(InternalError, err_msg("Holder %s must be instance klass", holder->external_name()));
1956   }
1957   InstanceKlass* ik = InstanceKlass::cast(holder);
1958   BasicType constant_type;
1959   if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(java_type)) {
1960     constant_type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(java_type), JVMCI_CHECK_NULL);
1961   } else {
1962     constant_type = T_OBJECT;
1963   }
1964   int displacement = JVMCIENV->get_HotSpotResolvedJavaFieldImpl_offset(field_object);
1965   fieldDescriptor fd;
1966   if (!ik->find_local_field_from_offset(displacement, (modifiers & JVM_ACC_STATIC) != 0, &fd)) {
1967     JVMCI_THROW_MSG_0(InternalError, err_msg("Can't find field with displacement %d", displacement));
1968   }
1969   JVMCIObject base = JVMCIENV->wrap(object);
1970   Handle obj;
1971   if (JVMCIENV->isa_HotSpotObjectConstantImpl(base)) {
1972     obj = JVMCIENV->asConstant(base, JVMCI_CHECK_NULL);
1973   } else if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base)) {
1974     Klass* klass = JVMCIENV->asKlass(base);
1975     obj = Handle(THREAD, klass->java_mirror());
1976   } else {
1977     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
1978                          err_msg("Unexpected type: %s", JVMCIENV->klass_name(base)));
1979   }
1980   jlong value = 0;
1981   JVMCIObject kind;
1982   switch (constant_type) {
1983     case T_OBJECT: {
1984       oop object = is_volatile ? obj->obj_field_acquire(displacement) : obj->obj_field(displacement);
1985       JVMCIObject result = JVMCIENV->get_object_constant(object);
1986       if (result.is_null()) {
1987         return JVMCIENV->get_jobject(JVMCIENV->get_JavaConstant_NULL_POINTER());
1988       }
1989       return JVMCIENV->get_jobject(result);
1990     }
1991     case T_FLOAT: {
1992       float f = is_volatile ? obj->float_field_acquire(displacement) : obj->float_field(displacement);
1993       JVMCIObject result = JVMCIENV->call_JavaConstant_forFloat(f, JVMCI_CHECK_NULL);
1994       return JVMCIENV->get_jobject(result);
1995     }
1996     case T_DOUBLE: {
1997       double f = is_volatile ? obj->double_field_acquire(displacement) : obj->double_field(displacement);
1998       JVMCIObject result = JVMCIENV->call_JavaConstant_forDouble(f, JVMCI_CHECK_NULL);
1999       return JVMCIENV->get_jobject(result);
2000     }
2001     case T_BOOLEAN: value = is_volatile ? obj->bool_field_acquire(displacement) : obj->bool_field(displacement); break;
2002     case T_BYTE: value = is_volatile ? obj->byte_field_acquire(displacement) : obj->byte_field(displacement); break;
2003     case T_SHORT: value = is_volatile ? obj->short_field_acquire(displacement) : obj->short_field(displacement); break;
2004     case T_CHAR: value = is_volatile ? obj->char_field_acquire(displacement) : obj->char_field(displacement); break;
2005     case T_INT: value = is_volatile ? obj->int_field_acquire(displacement) : obj->int_field(displacement); break;
2006     case T_LONG: value = is_volatile ? obj->long_field_acquire(displacement) : obj->long_field(displacement); break;
2007     default:
2008       ShouldNotReachHere();
2009   }
2010   JVMCIObject result = JVMCIENV->call_PrimitiveConstant_forTypeChar(type2char(constant_type), value, JVMCI_CHECK_NULL);
2011   return JVMCIENV->get_jobject(result);
2012 C2V_END
2013 
2014 C2V_VMENTRY_0(jboolean, isInstance, (JNIEnv* env, jobject, jobject holder, jobject object))
2015   if (object == NULL || holder == NULL) {
2016     JVMCI_THROW_0(NullPointerException);
2017   }
2018   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_0);
2019   Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2020   return obj->is_a(klass);
2021 C2V_END
2022 
2023 C2V_VMENTRY_0(jboolean, isAssignableFrom, (JNIEnv* env, jobject, jobject holder, jobject otherHolder))
2024   if (holder == NULL || otherHolder == NULL) {
2025     JVMCI_THROW_0(NullPointerException);
2026   }
2027   Klass* klass = JVMCIENV->asKlass(JVMCIENV->wrap(holder));
2028   Klass* otherKlass = JVMCIENV->asKlass(JVMCIENV->wrap(otherHolder));
2029   return otherKlass->is_subtype_of(klass);
2030 C2V_END
2031 
2032 C2V_VMENTRY_0(jboolean, isTrustedForIntrinsics, (JNIEnv* env, jobject, jobject holder))
2033   if (holder == NULL) {
2034     JVMCI_THROW_0(NullPointerException);
2035   }
2036   InstanceKlass* ik = InstanceKlass::cast(JVMCIENV->asKlass(JVMCIENV->wrap(holder)));
2037   if (ik->class_loader_data()->is_boot_class_loader_data() || ik->class_loader_data()->is_platform_class_loader_data()) {
2038     return true;
2039   }
2040   return false;
2041 C2V_END
2042 
2043 C2V_VMENTRY_NULL(jobject, asJavaType, (JNIEnv* env, jobject, jobject object))
2044   if (object == NULL) {
2045     JVMCI_THROW_0(NullPointerException);
2046   }
2047   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2048   if (java_lang_Class::is_instance(obj())) {
2049     if (java_lang_Class::is_primitive(obj())) {
2050       JVMCIObject type = JVMCIENV->get_jvmci_primitive_type(java_lang_Class::primitive_type(obj()));
2051       return JVMCIENV->get_jobject(type);
2052     }
2053     Klass* klass = java_lang_Class::as_Klass(obj());
2054     JVMCIKlassHandle klass_handle(THREAD);
2055     klass_handle = klass;
2056     JVMCIObject type = JVMCIENV->get_jvmci_type(klass_handle, JVMCI_CHECK_NULL);
2057     return JVMCIENV->get_jobject(type);
2058   }
2059   return NULL;
2060 C2V_END
2061 
2062 
2063 C2V_VMENTRY_NULL(jobject, asString, (JNIEnv* env, jobject, jobject object))
2064   if (object == NULL) {
2065     JVMCI_THROW_0(NullPointerException);
2066   }
2067   Handle obj = JVMCIENV->asConstant(JVMCIENV->wrap(object), JVMCI_CHECK_NULL);
2068   const char* str = java_lang_String::as_utf8_string(obj());
2069   JVMCIObject result = JVMCIENV->create_string(str, JVMCI_CHECK_NULL);
2070   return JVMCIENV->get_jobject(result);
2071 C2V_END
2072 
2073 
2074 C2V_VMENTRY_0(jboolean, equals, (JNIEnv* env, jobject, jobject x, jlong xHandle, jobject y, jlong yHandle))
2075   if (x == NULL || y == NULL) {
2076     JVMCI_THROW_0(NullPointerException);
2077   }
2078   return JVMCIENV->resolve_handle(xHandle) == JVMCIENV->resolve_handle(yHandle);
2079 C2V_END
2080 
2081 C2V_VMENTRY_NULL(jobject, getJavaMirror, (JNIEnv* env, jobject, jobject object))
2082   if (object == NULL) {
2083     JVMCI_THROW_0(NullPointerException);
2084   }
2085   JVMCIObject base_object = JVMCIENV->wrap(object);
2086   Handle mirror;
2087   if (JVMCIENV->isa_HotSpotResolvedObjectTypeImpl(base_object)) {
2088     mirror = Handle(THREAD, JVMCIENV->asKlass(base_object)->java_mirror());
2089   } else if (JVMCIENV->isa_HotSpotResolvedPrimitiveType(base_object)) {
2090     mirror = JVMCIENV->asConstant(JVMCIENV->get_HotSpotResolvedPrimitiveType_mirror(base_object), JVMCI_CHECK_NULL);
2091   } else {
2092     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2093                          err_msg("Unexpected type: %s", JVMCIENV->klass_name(base_object)));
2094  }
2095   JVMCIObject result = JVMCIENV->get_object_constant(mirror());
2096   return JVMCIENV->get_jobject(result);
2097 C2V_END
2098 
2099 
2100 C2V_VMENTRY_0(jint, getArrayLength, (JNIEnv* env, jobject, jobject x))
2101   if (x == NULL) {
2102     JVMCI_THROW_0(NullPointerException);
2103   }
2104   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2105   if (xobj->klass()->is_array_klass()) {
2106     return arrayOop(xobj())->length();
2107   }
2108   return -1;
2109  C2V_END
2110 
2111 
2112 C2V_VMENTRY_NULL(jobject, readArrayElement, (JNIEnv* env, jobject, jobject x, int index))
2113   if (x == NULL) {
2114     JVMCI_THROW_0(NullPointerException);
2115   }
2116   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_NULL);
2117   if (xobj->klass()->is_array_klass()) {
2118     arrayOop array = arrayOop(xobj());
2119     BasicType element_type = ArrayKlass::cast(array->klass())->element_type();
2120     if (index < 0 || index >= array->length()) {
2121       return NULL;
2122     }
2123     JVMCIObject result;
2124 
2125     if (element_type == T_OBJECT) {
2126       result = JVMCIENV->get_object_constant(objArrayOop(xobj())->obj_at(index));
2127       if (result.is_null()) {
2128         result = JVMCIENV->get_JavaConstant_NULL_POINTER();
2129       }
2130     } else {
2131       jvalue value;
2132       switch (element_type) {
2133         case T_DOUBLE:        value.d = typeArrayOop(xobj())->double_at(index);        break;
2134         case T_FLOAT:         value.f = typeArrayOop(xobj())->float_at(index);         break;
2135         case T_LONG:          value.j = typeArrayOop(xobj())->long_at(index);          break;
2136         case T_INT:           value.i = typeArrayOop(xobj())->int_at(index);            break;
2137         case T_SHORT:         value.s = typeArrayOop(xobj())->short_at(index);          break;
2138         case T_CHAR:          value.c = typeArrayOop(xobj())->char_at(index);           break;
2139         case T_BYTE:          value.b = typeArrayOop(xobj())->byte_at(index);           break;
2140         case T_BOOLEAN:       value.z = typeArrayOop(xobj())->byte_at(index) & 1;       break;
2141         default:              ShouldNotReachHere();
2142       }
2143       result = JVMCIENV->create_box(element_type, &value, JVMCI_CHECK_NULL);
2144     }
2145     assert(!result.is_null(), "must have a value");
2146     return JVMCIENV->get_jobject(result);
2147   }
2148   return NULL;;
2149 C2V_END
2150 
2151 
2152 C2V_VMENTRY_0(jint, arrayBaseOffset, (JNIEnv* env, jobject, jobject kind))
2153   if (kind == NULL) {
2154     JVMCI_THROW_0(NullPointerException);
2155   }
2156   BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2157   return arrayOopDesc::header_size(type) * HeapWordSize;
2158 C2V_END
2159 
2160 C2V_VMENTRY_0(jint, arrayIndexScale, (JNIEnv* env, jobject, jobject kind))
2161   if (kind == NULL) {
2162     JVMCI_THROW_0(NullPointerException);
2163   }
2164   BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->wrap(kind), JVMCI_CHECK_0);
2165   return type2aelembytes(type);
2166 C2V_END
2167 
2168 C2V_VMENTRY_0(jbyte, getByte, (JNIEnv* env, jobject, jobject x, long displacement))
2169   if (x == NULL) {
2170     JVMCI_THROW_0(NullPointerException);
2171   }
2172   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2173   return xobj->byte_field(displacement);
2174 }
2175 
2176 C2V_VMENTRY_0(jshort, getShort, (JNIEnv* env, jobject, jobject x, long displacement))
2177   if (x == NULL) {
2178     JVMCI_THROW_0(NullPointerException);
2179   }
2180   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2181   return xobj->short_field(displacement);
2182 }
2183 
2184 C2V_VMENTRY_0(jint, getInt, (JNIEnv* env, jobject, jobject x, long displacement))
2185   if (x == NULL) {
2186     JVMCI_THROW_0(NullPointerException);
2187   }
2188   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2189   return xobj->int_field(displacement);
2190 }
2191 
2192 C2V_VMENTRY_0(jlong, getLong, (JNIEnv* env, jobject, jobject x, long displacement))
2193   if (x == NULL) {
2194     JVMCI_THROW_0(NullPointerException);
2195   }
2196   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2197   return xobj->long_field(displacement);
2198 }
2199 
2200 C2V_VMENTRY_NULL(jobject, getObject, (JNIEnv* env, jobject, jobject x, long displacement))
2201   if (x == NULL) {
2202     JVMCI_THROW_0(NullPointerException);
2203   }
2204   Handle xobj = JVMCIENV->asConstant(JVMCIENV->wrap(x), JVMCI_CHECK_0);
2205   oop res = xobj->obj_field(displacement);
2206   JVMCIObject result = JVMCIENV->get_object_constant(res);
2207   return JVMCIENV->get_jobject(result);
2208 }
2209 
2210 C2V_VMENTRY(void, deleteGlobalHandle, (JNIEnv* env, jobject, jlong h))
2211   jobject handle = (jobject)(address)h;
2212   if (handle != NULL) {
2213     JVMCI::destroy_global(handle);
2214   }
2215 }
2216 
2217 static void requireJVMCINativeLibrary(JVMCI_TRAPS) {
2218   if (!UseJVMCINativeLibrary) {
2219     JVMCI_THROW_MSG(UnsupportedOperationException, "JVMCI shared library is not enabled (requires -XX:+UseJVMCINativeLibrary)");
2220   }
2221 }
2222 
2223 static JavaVM* requireNativeLibraryJavaVM(const char* caller, JVMCI_TRAPS) {
2224   JavaVM* javaVM = JVMCIEnv::get_shared_library_javavm();
2225   if (javaVM == NULL) {
2226     JVMCI_THROW_MSG_NULL(IllegalStateException, err_msg("Require JVMCI shared library to be initialized in %s", caller));
2227   }
2228   return javaVM;
2229 }
2230 
2231 C2V_VMENTRY_NULL(jlongArray, registerNativeMethods, (JNIEnv* env, jobject, jclass mirror))
2232   requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2233   requireInHotSpot("registerNativeMethods", JVMCI_CHECK_NULL);
2234   void* shared_library = JVMCIEnv::get_shared_library_handle();
2235   if (shared_library == NULL) {


2236     // Ensure the JVMCI shared library runtime is initialized.
2237     JVMCIEnv __peer_jvmci_env__(thread, false, __FILE__, __LINE__);
2238     JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2239     HandleMark hm;
2240     JVMCIRuntime* runtime = JVMCI::compiler_runtime();
2241     JVMCIObject receiver = runtime->get_HotSpotJVMCIRuntime(peerEnv);
2242     if (peerEnv->has_pending_exception()) {
2243       peerEnv->describe_pending_exception(true);
2244     }
2245     shared_library = JVMCIEnv::get_shared_library_handle();
2246     if (shared_library == NULL) {
2247       JVMCI_THROW_MSG_0(InternalError, "Error initializing JVMCI runtime");
2248     }
2249   }
2250 
2251   if (mirror == NULL) {
2252     JVMCI_THROW_0(NullPointerException);
2253   }
2254   Klass* klass = java_lang_Class::as_Klass(JNIHandles::resolve(mirror));
2255   if (klass == NULL || !klass->is_instance_klass()) {
2256     JVMCI_THROW_MSG_0(IllegalArgumentException, "clazz is for primitive type");
2257   }
2258 
2259   InstanceKlass* iklass = InstanceKlass::cast(klass);
2260   for (int i = 0; i < iklass->methods()->length(); i++) {
2261     Method* method = iklass->methods()->at(i);
2262     if (method->is_native()) {
2263 
2264       // Compute argument size
2265       int args_size = 1                             // JNIEnv
2266                     + (method->is_static() ? 1 : 0) // class for static methods
2267                     + method->size_of_parameters(); // actual parameters
2268 
2269       // 1) Try JNI short style
2270       stringStream st;
2271       char* pure_name = NativeLookup::pure_jni_name(method);
2272       os::print_jni_name_prefix_on(&st, args_size);
2273       st.print_raw(pure_name);
2274       os::print_jni_name_suffix_on(&st, args_size);
2275       char* jni_name = st.as_string();
2276 
2277       address entry = (address) os::dll_lookup(shared_library, jni_name);
2278       if (entry == NULL) {
2279         // 2) Try JNI long style
2280         st.reset();
2281         char* long_name = NativeLookup::long_jni_name(method);
2282         os::print_jni_name_prefix_on(&st, args_size);
2283         st.print_raw(pure_name);
2284         st.print_raw(long_name);
2285         os::print_jni_name_suffix_on(&st, args_size);
2286         char* jni_long_name = st.as_string();
2287         entry = (address) os::dll_lookup(shared_library, jni_long_name);
2288         if (entry == NULL) {
2289           JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [neither %s nor %s exist in %s]",
2290               method->name_and_sig_as_C_string(),
2291               jni_name, jni_long_name, JVMCIEnv::get_shared_library_path()));
2292         }
2293       }
2294 
2295       if (method->has_native_function() && entry != method->native_function()) {
2296         JVMCI_THROW_MSG_0(UnsatisfiedLinkError, err_msg("%s [cannot re-link from " PTR_FORMAT " to " PTR_FORMAT "]",
2297             method->name_and_sig_as_C_string(), p2i(method->native_function()), p2i(entry)));
2298       }
2299       method->set_native_function(entry, Method::native_bind_event_is_interesting);
2300       if (PrintJNIResolving) {
2301         tty->print_cr("[Dynamic-linking native method %s.%s ... JNI]",
2302           method->method_holder()->external_name(),
2303           method->name()->as_C_string());
2304       }
2305     }
2306   }
2307 
2308   JavaVM* javaVM = JVMCIEnv::get_shared_library_javavm();
2309   JVMCIPrimitiveArray result = JVMCIENV->new_longArray(4, JVMCI_CHECK_NULL);
2310   JVMCIENV->put_long_at(result, 0, (jlong) (address) javaVM);
2311   JVMCIENV->put_long_at(result, 1, (jlong) (address) javaVM->functions->reserved0);
2312   JVMCIENV->put_long_at(result, 2, (jlong) (address) javaVM->functions->reserved1);
2313   JVMCIENV->put_long_at(result, 3, (jlong) (address) javaVM->functions->reserved2);
2314   return (jlongArray) JVMCIENV->get_jobject(result);
2315 }
2316 
2317 C2V_VMENTRY_PREFIX(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject c2vm))
2318   if (base_thread == NULL) {
2319     // Called from unattached JVMCI shared library thread
2320     return false;
2321   }
2322   JVMCITraceMark jtm("isCurrentThreadAttached");
2323   assert(base_thread->is_Java_thread(), "just checking");
2324   JavaThread* thread = (JavaThread*) base_thread;
2325   if (thread->jni_environment() == env) {
2326     C2V_BLOCK(jboolean, isCurrentThreadAttached, (JNIEnv* env, jobject))
2327     requireJVMCINativeLibrary(JVMCI_CHECK_0);
2328     JavaVM* javaVM = requireNativeLibraryJavaVM("isCurrentThreadAttached", JVMCI_CHECK_0);



2329     JNIEnv* peerEnv;
2330     return javaVM->GetEnv((void**)&peerEnv, JNI_VERSION_1_2) == JNI_OK;
2331   }
2332   return true;
2333 C2V_END
2334 
2335 C2V_VMENTRY_PREFIX(jlong, getCurrentJavaThread, (JNIEnv* env, jobject c2vm))
2336   if (base_thread == NULL) {
2337     // Called from unattached JVMCI shared library thread
2338     return 0L;
2339   }
2340   JVMCITraceMark jtm("getCurrentJavaThread");
2341   assert(base_thread->is_Java_thread(), "just checking");
2342   return (jlong) p2i(base_thread);
2343 C2V_END
2344 
2345 C2V_VMENTRY_PREFIX(jboolean, attachCurrentThread, (JNIEnv* env, jobject c2vm, jboolean as_daemon))
2346   if (base_thread == NULL) {
2347     // Called from unattached JVMCI shared library thread
2348     extern struct JavaVM_ main_vm;
2349     JNIEnv* hotspotEnv;
2350     jint res = as_daemon ? main_vm.AttachCurrentThreadAsDaemon((void**)&hotspotEnv, NULL) :
2351                            main_vm.AttachCurrentThread((void**)&hotspotEnv, NULL);
2352     if (res != JNI_OK) {
2353       JNI_THROW_("attachCurrentThread", InternalError, err_msg("Trying to attach thread returned %d", res), false);
2354     }
2355     return true;
2356   }
2357   JVMCITraceMark jtm("attachCurrentThread");
2358   assert(base_thread->is_Java_thread(), "just checking");\
2359   JavaThread* thread = (JavaThread*) base_thread;
2360   if (thread->jni_environment() == env) {
2361     // Called from HotSpot
2362     C2V_BLOCK(jboolean, attachCurrentThread, (JNIEnv* env, jobject, jboolean))
2363     requireJVMCINativeLibrary(JVMCI_CHECK_0);
2364     JavaVM* javaVM = requireNativeLibraryJavaVM("attachCurrentThread", JVMCI_CHECK_0);




2365     JavaVMAttachArgs attach_args;
2366     attach_args.version = JNI_VERSION_1_2;
2367     attach_args.name = thread->name();
2368     attach_args.group = NULL;
2369     JNIEnv* peerEnv;
2370     if (javaVM->GetEnv((void**)&peerEnv, JNI_VERSION_1_2) == JNI_OK) {
2371       return false;
2372     }
2373     jint res = as_daemon ? javaVM->AttachCurrentThreadAsDaemon((void**)&peerEnv, &attach_args) :
2374                            javaVM->AttachCurrentThread((void**)&peerEnv, &attach_args);

2375     if (res == JNI_OK) {
2376       guarantee(peerEnv != NULL, "must be");

2377       return true;
2378     }
2379     JVMCI_THROW_MSG_0(InternalError, err_msg("Error %d while attaching %s", res, attach_args.name));
2380   }
2381   // Called from JVMCI shared library
2382   return false;
2383 C2V_END
2384 
2385 C2V_VMENTRY_PREFIX(void, detachCurrentThread, (JNIEnv* env, jobject c2vm))
2386   if (base_thread == NULL) {
2387     // Called from unattached JVMCI shared library thread
2388     JNI_THROW("detachCurrentThread", IllegalStateException, err_msg("Cannot detach non-attached thread"));
2389   }
2390   JVMCITraceMark jtm("detachCurrentThread");
2391   assert(base_thread->is_Java_thread(), "just checking");\
2392   JavaThread* thread = (JavaThread*) base_thread;
2393   if (thread->jni_environment() == env) {
2394     // Called from HotSpot
2395     C2V_BLOCK(void, detachCurrentThread, (JNIEnv* env, jobject))
2396     requireJVMCINativeLibrary(JVMCI_CHECK);
2397     requireInHotSpot("detachCurrentThread", JVMCI_CHECK);
2398     JavaVM* javaVM = requireNativeLibraryJavaVM("detachCurrentThread", JVMCI_CHECK);
2399     JNIEnv* peerEnv;
2400     if (javaVM->GetEnv((void**)&peerEnv, JNI_VERSION_1_2) != JNI_OK) {



2401       JVMCI_THROW_MSG(IllegalStateException, err_msg("Cannot detach non-attached thread: %s", thread->name()));
2402     }
2403     jint res = javaVM->DetachCurrentThread();
2404     if (res != JNI_OK) {
2405       JVMCI_THROW_MSG(InternalError, err_msg("Error %d while attaching %s", res, thread->name()));
2406     }
2407   } else {
2408     // Called from attached JVMCI shared library thread
2409     extern struct JavaVM_ main_vm;
2410     jint res = main_vm.DetachCurrentThread();
2411     if (res != JNI_OK) {
2412       JNI_THROW("detachCurrentThread", InternalError, err_msg("Cannot detach non-attached thread"));
2413     }
2414   }
2415 C2V_END
2416 
2417 C2V_VMENTRY_0(jlong, translate, (JNIEnv* env, jobject, jobject obj_handle))
2418   requireJVMCINativeLibrary(JVMCI_CHECK_0);
2419   if (obj_handle == NULL) {
2420     return 0L;
2421   }
2422   JVMCIEnv __peer_jvmci_env__(thread, !JVMCIENV->is_hotspot(), __FILE__, __LINE__);
2423   JVMCIEnv* peerEnv = &__peer_jvmci_env__;
2424   JVMCIEnv* thisEnv = JVMCIENV;
2425 
2426   JVMCIObject obj = thisEnv->wrap(obj_handle);
2427   JVMCIObject result;
2428   if (thisEnv->isa_HotSpotResolvedJavaMethodImpl(obj)) {
2429     Method* method = thisEnv->asMethod(obj);
2430     result = peerEnv->get_jvmci_method(method, JVMCI_CHECK_0);
2431   } else if (thisEnv->isa_HotSpotResolvedObjectTypeImpl(obj)) {
2432     Klass* klass = thisEnv->asKlass(obj);
2433     JVMCIKlassHandle klass_handle(THREAD);
2434     klass_handle = klass;
2435     result = peerEnv->get_jvmci_type(klass_handle, JVMCI_CHECK_0);
2436   } else if (thisEnv->isa_HotSpotResolvedPrimitiveType(obj)) {
2437     BasicType type = JVMCIENV->kindToBasicType(JVMCIENV->get_HotSpotResolvedPrimitiveType_kind(obj), JVMCI_CHECK_0);
2438     result = peerEnv->get_jvmci_primitive_type(type);
2439   } else if (thisEnv->isa_IndirectHotSpotObjectConstantImpl(obj) ||
2440              thisEnv->isa_DirectHotSpotObjectConstantImpl(obj)) {
2441     Handle constant = thisEnv->asConstant(obj, JVMCI_CHECK_0);
2442     result = peerEnv->get_object_constant(constant());
2443   } else if (thisEnv->isa_HotSpotNmethod(obj)) {
2444     nmethodLocker locker;
2445     nmethod* nm = JVMCIENV->get_nmethod(obj, locker);
2446     if (nm != NULL) {
2447       JVMCINMethodData* data = nm->jvmci_nmethod_data();
2448       if (data != NULL) {
2449         if (peerEnv->is_hotspot()) {
2450           // Only the mirror in the HotSpot heap is accessible
2451           // through JVMCINMethodData
2452           oop nmethod_mirror = data->get_nmethod_mirror(nm, /* phantom_ref */ true);
2453           if (nmethod_mirror != NULL) {
2454             result = HotSpotJVMCI::wrap(nmethod_mirror);
2455           }
2456         }
2457       }
2458     }
2459     if (result.is_null()) {
2460       JVMCIObject methodObject = thisEnv->get_HotSpotNmethod_method(obj);
2461       methodHandle mh = thisEnv->asMethod(methodObject);
2462       jboolean isDefault = thisEnv->get_HotSpotNmethod_isDefault(obj);
2463       jlong compileIdSnapshot = thisEnv->get_HotSpotNmethod_compileIdSnapshot(obj);
2464       JVMCIObject name_string = thisEnv->get_InstalledCode_name(obj);
2465       const char* cstring = name_string.is_null() ? NULL : thisEnv->as_utf8_string(name_string);
2466       // Create a new HotSpotNmethod instance in the peer runtime
2467       result = peerEnv->new_HotSpotNmethod(mh(), cstring, isDefault, compileIdSnapshot, JVMCI_CHECK_0);
2468       if (nm == NULL) {
2469         // nmethod must have been unloaded
2470       } else {
2471         // Link the new HotSpotNmethod to the nmethod
2472         peerEnv->initialize_installed_code(result, nm, JVMCI_CHECK_0);
2473         // Only HotSpotNmethod instances in the HotSpot heap are tracked directly by the runtime.
2474         if (peerEnv->is_hotspot()) {
2475           JVMCINMethodData* data = nm->jvmci_nmethod_data();
2476           if (data == NULL) {
2477             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot set HotSpotNmethod mirror for default nmethod");
2478           }
2479           if (data->get_nmethod_mirror(nm, /* phantom_ref */ false) != NULL) {
2480             JVMCI_THROW_MSG_0(IllegalArgumentException, "Cannot overwrite existing HotSpotNmethod mirror for nmethod");
2481           }
2482           oop nmethod_mirror = HotSpotJVMCI::resolve(result);
2483           data->set_nmethod_mirror(nm, nmethod_mirror);
2484         }
2485       }
2486     }
2487   } else {
2488     JVMCI_THROW_MSG_0(IllegalArgumentException,
2489                 err_msg("Cannot translate object of type: %s", thisEnv->klass_name(obj)));
2490   }
2491   return (jlong) peerEnv->make_global(result).as_jobject();
2492 }
2493 
2494 C2V_VMENTRY_NULL(jobject, unhand, (JNIEnv* env, jobject, jlong obj_handle))
2495   requireJVMCINativeLibrary(JVMCI_CHECK_NULL);
2496   if (obj_handle == 0L) {
2497     return NULL;
2498   }
2499   jobject global_handle = (jobject) obj_handle;
2500   JVMCIObject global_handle_obj = JVMCIENV->wrap((jobject) obj_handle);
2501   jobject result = JVMCIENV->make_local(global_handle_obj).as_jobject();
2502 
2503   JVMCIENV->destroy_global(global_handle_obj);
2504   return result;
2505 }
2506 
2507 C2V_VMENTRY(void, updateHotSpotNmethod, (JNIEnv* env, jobject, jobject code_handle))
2508   JVMCIObject code = JVMCIENV->wrap(code_handle);
2509   // Execute this operation for the side effect of updating the InstalledCode state
2510   nmethodLocker locker;
2511   JVMCIENV->get_nmethod(code, locker);
2512 }
2513 
2514 C2V_VMENTRY_NULL(jbyteArray, getCode, (JNIEnv* env, jobject, jobject code_handle))
2515   JVMCIObject code = JVMCIENV->wrap(code_handle);
2516   nmethodLocker locker;
2517   CodeBlob* cb = JVMCIENV->get_code_blob(code, locker);
2518   if (cb == NULL) {
2519     return NULL;
2520   }
2521   int code_size = cb->code_size();
2522   JVMCIPrimitiveArray result = JVMCIENV->new_byteArray(code_size, JVMCI_CHECK_NULL);
2523   JVMCIENV->copy_bytes_from((jbyte*) cb->code_begin(), result, 0, code_size);
2524   return JVMCIENV->get_jbyteArray(result);
2525 }
2526 
2527 C2V_VMENTRY_NULL(jobject, asReflectionExecutable, (JNIEnv* env, jobject, jobject jvmci_method))
2528   requireInHotSpot("asReflectionExecutable", JVMCI_CHECK_NULL);
2529   methodHandle m = JVMCIENV->asMethod(jvmci_method);
2530   oop executable;
2531   if (m->is_initializer()) {
2532     if (m->is_static_initializer()) {
2533       JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2534           "Cannot create java.lang.reflect.Method for class initializer");
2535     }
2536     executable = Reflection::new_constructor(m, CHECK_NULL);
2537   } else {
2538     executable = Reflection::new_method(m, false, CHECK_NULL);
2539   }
2540   return JNIHandles::make_local(THREAD, executable);
2541 }
2542 
2543 C2V_VMENTRY_NULL(jobject, asReflectionField, (JNIEnv* env, jobject, jobject jvmci_type, jint index))
2544   requireInHotSpot("asReflectionField", JVMCI_CHECK_NULL);
2545   Klass* klass = JVMCIENV->asKlass(jvmci_type);
2546   if (!klass->is_instance_klass()) {
2547     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2548         err_msg("Expected non-primitive type, got %s", klass->external_name()));
2549   }
2550   InstanceKlass* iklass = InstanceKlass::cast(klass);
2551   Array<u2>* fields = iklass->fields();
2552   if (index < 0 ||index > fields->length()) {
2553     JVMCI_THROW_MSG_NULL(IllegalArgumentException,
2554         err_msg("Field index %d out of bounds for %s", index, klass->external_name()));
2555   }
2556   fieldDescriptor fd(iklass, index);
2557   oop reflected = Reflection::new_field(&fd, CHECK_NULL);
2558   return JNIHandles::make_local(env, reflected);
2559 }
2560 
2561 C2V_VMENTRY_NULL(jobjectArray, getFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address, jobjectArray current))
2562   FailedSpeculation* head = *((FailedSpeculation**)(address) failed_speculations_address);
2563   int result_length = 0;
2564   for (FailedSpeculation* fs = head; fs != NULL; fs = fs->next()) {
2565     result_length++;
2566   }
2567   int current_length = 0;
2568   JVMCIObjectArray current_array = NULL;
2569   if (current != NULL) {
2570     current_array = JVMCIENV->wrap(current);
2571     current_length = JVMCIENV->get_length(current_array);
2572     if (current_length == result_length) {
2573       // No new failures
2574       return current;
2575     }
2576   }
2577   JVMCIObjectArray result = JVMCIENV->new_byte_array_array(result_length, JVMCI_CHECK_NULL);
2578   int result_index = 0;
2579   for (FailedSpeculation* fs = head; result_index < result_length; fs = fs->next()) {
2580     assert(fs != NULL, "npe");
2581     JVMCIPrimitiveArray entry;
2582     if (result_index < current_length) {
2583       entry = (JVMCIPrimitiveArray) JVMCIENV->get_object_at(current_array, result_index);
2584     } else {
2585       entry = JVMCIENV->new_byteArray(fs->data_len(), JVMCI_CHECK_NULL);
2586       JVMCIENV->copy_bytes_from((jbyte*) fs->data(), entry, 0, fs->data_len());
2587     }
2588     JVMCIENV->put_object_at(result, result_index++, entry);
2589   }
2590   return JVMCIENV->get_jobjectArray(result);
2591 }
2592 
2593 C2V_VMENTRY_0(jlong, getFailedSpeculationsAddress, (JNIEnv* env, jobject, jobject jvmci_method))
2594   methodHandle method = JVMCIENV->asMethod(jvmci_method);
2595   MethodData* method_data = method->method_data();
2596   if (method_data == NULL) {
2597     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
2598     method_data = MethodData::allocate(loader_data, method, CHECK_0);
2599     method->set_method_data(method_data);
2600   }
2601   return (jlong) method_data->get_failed_speculations_address();
2602 }
2603 
2604 C2V_VMENTRY(void, releaseFailedSpeculations, (JNIEnv* env, jobject, jlong failed_speculations_address))
2605   FailedSpeculation::free_failed_speculations((FailedSpeculation**)(address) failed_speculations_address);
2606 }
2607 
2608 C2V_VMENTRY_0(jboolean, addFailedSpeculation, (JNIEnv* env, jobject, jlong failed_speculations_address, jbyteArray speculation_obj))
2609   JVMCIPrimitiveArray speculation_handle = JVMCIENV->wrap(speculation_obj);
2610   int speculation_len = JVMCIENV->get_length(speculation_handle);
2611   char* speculation = NEW_RESOURCE_ARRAY(char, speculation_len);
2612   JVMCIENV->copy_bytes_to(speculation_handle, (jbyte*) speculation, 0, speculation_len);
2613   return FailedSpeculation::add_failed_speculation(NULL, (FailedSpeculation**)(address) failed_speculations_address, (address) speculation, speculation_len);
2614 }
2615 
2616 C2V_VMENTRY(void, callSystemExit, (JNIEnv* env, jobject, jint status))
2617   JavaValue result(T_VOID);
2618   JavaCallArguments jargs(1);
2619   jargs.push_int(status);
2620   JavaCalls::call_static(&result,
2621                        SystemDictionary::System_klass(),
2622                        vmSymbols::exit_method_name(),
2623                        vmSymbols::int_void_signature(),
2624                        &jargs,
2625                        CHECK);
2626 }
2627 
2628 #define CC (char*)  /*cast a literal from (const char*)*/
2629 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
2630 
2631 #define STRING                  "Ljava/lang/String;"
2632 #define OBJECT                  "Ljava/lang/Object;"
2633 #define CLASS                   "Ljava/lang/Class;"
2634 #define OBJECTCONSTANT          "Ljdk/vm/ci/hotspot/HotSpotObjectConstantImpl;"
2635 #define HANDLECONSTANT          "Ljdk/vm/ci/hotspot/IndirectHotSpotObjectConstantImpl;"
2636 #define EXECUTABLE              "Ljava/lang/reflect/Executable;"
2637 #define STACK_TRACE_ELEMENT     "Ljava/lang/StackTraceElement;"
2638 #define INSTALLED_CODE          "Ljdk/vm/ci/code/InstalledCode;"
2639 #define TARGET_DESCRIPTION      "Ljdk/vm/ci/code/TargetDescription;"
2640 #define BYTECODE_FRAME          "Ljdk/vm/ci/code/BytecodeFrame;"
2641 #define JAVACONSTANT            "Ljdk/vm/ci/meta/JavaConstant;"
2642 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
2643 #define RESOLVED_METHOD         "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
2644 #define HS_RESOLVED_METHOD      "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
2645 #define HS_RESOLVED_KLASS       "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
2646 #define HS_RESOLVED_TYPE        "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaType;"
2647 #define HS_RESOLVED_FIELD       "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaField;"
2648 #define HS_INSTALLED_CODE       "Ljdk/vm/ci/hotspot/HotSpotInstalledCode;"
2649 #define HS_NMETHOD              "Ljdk/vm/ci/hotspot/HotSpotNmethod;"
2650 #define HS_CONSTANT_POOL        "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
2651 #define HS_COMPILED_CODE        "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
2652 #define HS_CONFIG               "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
2653 #define HS_METADATA             "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
2654 #define HS_STACK_FRAME_REF      "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
2655 #define HS_SPECULATION_LOG      "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
2656 #define METASPACE_OBJECT        "Ljdk/vm/ci/hotspot/MetaspaceObject;"
2657 #define REFLECTION_EXECUTABLE   "Ljava/lang/reflect/Executable;"
2658 #define REFLECTION_FIELD        "Ljava/lang/reflect/Field;"
2659 #define METASPACE_METHOD_DATA   "J"
2660 
2661 JNINativeMethod CompilerToVM::methods[] = {
2662   {CC "getBytecode",                                  CC "(" HS_RESOLVED_METHOD ")[B",                                                      FN_PTR(getBytecode)},
2663   {CC "getExceptionTableStart",                       CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getExceptionTableStart)},
2664   {CC "getExceptionTableLength",                      CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getExceptionTableLength)},
2665   {CC "findUniqueConcreteMethod",                     CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD,                   FN_PTR(findUniqueConcreteMethod)},
2666   {CC "getImplementor",                               CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getImplementor)},
2667   {CC "getStackTraceElement",                         CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT,                                   FN_PTR(getStackTraceElement)},
2668   {CC "methodIsIgnoredBySecurityStackWalk",           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(methodIsIgnoredBySecurityStackWalk)},
2669   {CC "setNotInlinableOrCompilable",                  CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(setNotInlinableOrCompilable)},
2670   {CC "isCompilable",                                 CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(isCompilable)},
2671   {CC "hasNeverInlineDirective",                      CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(hasNeverInlineDirective)},
2672   {CC "shouldInlineMethod",                           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(shouldInlineMethod)},
2673   {CC "lookupType",                                   CC "(" STRING HS_RESOLVED_KLASS "Z)" HS_RESOLVED_TYPE,                                FN_PTR(lookupType)},
2674   {CC "getArrayType",                                 CC "(" HS_RESOLVED_TYPE ")" HS_RESOLVED_KLASS,                                        FN_PTR(getArrayType)},
2675   {CC "lookupClass",                                  CC "(" CLASS ")" HS_RESOLVED_TYPE,                                                    FN_PTR(lookupClass)},
2676   {CC "lookupNameInPool",                             CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupNameInPool)},
2677   {CC "lookupNameAndTypeRefIndexInPool",              CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupNameAndTypeRefIndexInPool)},
2678   {CC "lookupSignatureInPool",                        CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupSignatureInPool)},
2679   {CC "lookupKlassRefIndexInPool",                    CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupKlassRefIndexInPool)},
2680   {CC "lookupKlassInPool",                            CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;",                                       FN_PTR(lookupKlassInPool)},
2681   {CC "lookupAppendixInPool",                         CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(lookupAppendixInPool)},
2682   {CC "lookupMethodInPool",                           CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD,                                     FN_PTR(lookupMethodInPool)},
2683   {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(constantPoolRemapInstructionOperandFromCache)},
2684   {CC "resolvePossiblyCachedConstantInPool",          CC "(" HS_CONSTANT_POOL "I)" OBJECTCONSTANT,                                          FN_PTR(resolvePossiblyCachedConstantInPool)},
2685   {CC "resolveTypeInPool",                            CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS,                                       FN_PTR(resolveTypeInPool)},
2686   {CC "resolveFieldInPool",                           CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS,              FN_PTR(resolveFieldInPool)},
2687   {CC "resolveInvokeDynamicInPool",                   CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeDynamicInPool)},
2688   {CC "resolveInvokeHandleInPool",                    CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeHandleInPool)},
2689   {CC "isResolvedInvokeHandleInPool",                 CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(isResolvedInvokeHandleInPool)},
2690   {CC "resolveMethod",                                CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
2691   {CC "getSignaturePolymorphicHolders",               CC "()[" STRING,                                                                      FN_PTR(getSignaturePolymorphicHolders)},
2692   {CC "getVtableIndexForInterfaceMethod",             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I",                                     FN_PTR(getVtableIndexForInterfaceMethod)},
2693   {CC "getClassInitializer",                          CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD,                                      FN_PTR(getClassInitializer)},
2694   {CC "hasFinalizableSubclass",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(hasFinalizableSubclass)},
2695   {CC "getMaxCallTargetOffset",                       CC "(J)J",                                                                            FN_PTR(getMaxCallTargetOffset)},
2696   {CC "asResolvedJavaMethod",                         CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD,                                             FN_PTR(asResolvedJavaMethod)},
2697   {CC "getResolvedJavaMethod",                        CC "(" OBJECTCONSTANT "J)" HS_RESOLVED_METHOD,                                        FN_PTR(getResolvedJavaMethod)},
2698   {CC "getConstantPool",                              CC "(" METASPACE_OBJECT ")" HS_CONSTANT_POOL,                                         FN_PTR(getConstantPool)},
2699   {CC "getResolvedJavaType0",                         CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS,                                        FN_PTR(getResolvedJavaType0)},
2700   {CC "readConfiguration",                            CC "()[" OBJECT,                                                                      FN_PTR(readConfiguration)},
2701   {CC "installCode",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE "J[B)I",                    FN_PTR(installCode)},
2702   {CC "getMetadata",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I",                          FN_PTR(getMetadata)},
2703   {CC "resetCompilationStatistics",                   CC "()V",                                                                             FN_PTR(resetCompilationStatistics)},
2704   {CC "disassembleCodeBlob",                          CC "(" INSTALLED_CODE ")" STRING,                                                     FN_PTR(disassembleCodeBlob)},
2705   {CC "executeHotSpotNmethod",                        CC "([" OBJECT HS_NMETHOD ")" OBJECT,                                                 FN_PTR(executeHotSpotNmethod)},
2706   {CC "getLineNumberTable",                           CC "(" HS_RESOLVED_METHOD ")[J",                                                      FN_PTR(getLineNumberTable)},
2707   {CC "getLocalVariableTableStart",                   CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getLocalVariableTableStart)},
2708   {CC "getLocalVariableTableLength",                  CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getLocalVariableTableLength)},
2709   {CC "reprofile",                                    CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(reprofile)},
2710   {CC "invalidateHotSpotNmethod",                     CC "(" HS_NMETHOD ")V",                                                               FN_PTR(invalidateHotSpotNmethod)},
2711   {CC "readUncompressedOop",                          CC "(J)" OBJECTCONSTANT,                                                              FN_PTR(readUncompressedOop)},
2712   {CC "collectCounters",                              CC "()[J",                                                                            FN_PTR(collectCounters)},
2713   {CC "getCountersSize",                              CC "()I",                                                                             FN_PTR(getCountersSize)},
2714   {CC "setCountersSize",                              CC "(I)Z",                                                                            FN_PTR(setCountersSize)},
2715   {CC "allocateCompileId",                            CC "(" HS_RESOLVED_METHOD "I)I",                                                      FN_PTR(allocateCompileId)},
2716   {CC "isMature",                                     CC "(" METASPACE_METHOD_DATA ")Z",                                                    FN_PTR(isMature)},
2717   {CC "hasCompiledCodeForOSR",                        CC "(" HS_RESOLVED_METHOD "II)Z",                                                     FN_PTR(hasCompiledCodeForOSR)},
2718   {CC "getSymbol",                                    CC "(J)" STRING,                                                                      FN_PTR(getSymbol)},
2719   {CC "iterateFrames",                                CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT,   FN_PTR(iterateFrames)},
2720   {CC "materializeVirtualObjects",                    CC "(" HS_STACK_FRAME_REF "Z)V",                                                      FN_PTR(materializeVirtualObjects)},
2721   {CC "shouldDebugNonSafepoints",                     CC "()Z",                                                                             FN_PTR(shouldDebugNonSafepoints)},
2722   {CC "writeDebugOutput",                             CC "([BIIZZ)I",                                                                       FN_PTR(writeDebugOutput)},
2723   {CC "flushDebugOutput",                             CC "()V",                                                                             FN_PTR(flushDebugOutput)},
2724   {CC "methodDataProfileDataSize",                    CC "(JI)I",                                                                           FN_PTR(methodDataProfileDataSize)},
2725   {CC "getFingerprint",                               CC "(J)J",                                                                            FN_PTR(getFingerprint)},
2726   {CC "getHostClass",                                 CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getHostClass)},
2727   {CC "interpreterFrameSize",                         CC "(" BYTECODE_FRAME ")I",                                                           FN_PTR(interpreterFrameSize)},
2728   {CC "compileToBytecode",                            CC "(" OBJECTCONSTANT ")V",                                                           FN_PTR(compileToBytecode)},
2729   {CC "getFlagValue",                                 CC "(" STRING ")" OBJECT,                                                             FN_PTR(getFlagValue)},
2730   {CC "getObjectAtAddress",                           CC "(J)" OBJECT,                                                                      FN_PTR(getObjectAtAddress)},
2731   {CC "getInterfaces",                                CC "(" HS_RESOLVED_KLASS ")[" HS_RESOLVED_KLASS,                                      FN_PTR(getInterfaces)},
2732   {CC "getComponentType",                             CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_TYPE,                                        FN_PTR(getComponentType)},
2733   {CC "ensureInitialized",                            CC "(" HS_RESOLVED_KLASS ")V",                                                        FN_PTR(ensureInitialized)},
2734   {CC "getIdentityHashCode",                          CC "(" OBJECTCONSTANT ")I",                                                           FN_PTR(getIdentityHashCode)},
2735   {CC "isInternedString",                             CC "(" OBJECTCONSTANT ")Z",                                                           FN_PTR(isInternedString)},
2736   {CC "unboxPrimitive",                               CC "(" OBJECTCONSTANT ")" OBJECT,                                                     FN_PTR(unboxPrimitive)},
2737   {CC "boxPrimitive",                                 CC "(" OBJECT ")" OBJECTCONSTANT,                                                     FN_PTR(boxPrimitive)},
2738   {CC "getDeclaredConstructors",                      CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD,                                        FN_PTR(getDeclaredConstructors)},
2739   {CC "getDeclaredMethods",                           CC "(" HS_RESOLVED_KLASS ")[" RESOLVED_METHOD,                                        FN_PTR(getDeclaredMethods)},
2740   {CC "readFieldValue",                               CC "(" HS_RESOLVED_KLASS HS_RESOLVED_FIELD "Z)" JAVACONSTANT,                         FN_PTR(readFieldValue)},
2741   {CC "readFieldValue",                               CC "(" OBJECTCONSTANT HS_RESOLVED_FIELD "Z)" JAVACONSTANT,                            FN_PTR(readFieldValue)},
2742   {CC "isInstance",                                   CC "(" HS_RESOLVED_KLASS OBJECTCONSTANT ")Z",                                         FN_PTR(isInstance)},
2743   {CC "isAssignableFrom",                             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_KLASS ")Z",                                      FN_PTR(isAssignableFrom)},
2744   {CC "isTrustedForIntrinsics",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(isTrustedForIntrinsics)},
2745   {CC "asJavaType",                                   CC "(" OBJECTCONSTANT ")" HS_RESOLVED_TYPE,                                           FN_PTR(asJavaType)},
2746   {CC "asString",                                     CC "(" OBJECTCONSTANT ")" STRING,                                                     FN_PTR(asString)},
2747   {CC "equals",                                       CC "(" OBJECTCONSTANT "J" OBJECTCONSTANT "J)Z",                                       FN_PTR(equals)},
2748   {CC "getJavaMirror",                                CC "(" HS_RESOLVED_TYPE ")" OBJECTCONSTANT,                                           FN_PTR(getJavaMirror)},
2749   {CC "getArrayLength",                               CC "(" OBJECTCONSTANT ")I",                                                           FN_PTR(getArrayLength)},
2750   {CC "readArrayElement",                             CC "(" OBJECTCONSTANT "I)Ljava/lang/Object;",                                         FN_PTR(readArrayElement)},
2751   {CC "arrayBaseOffset",                              CC "(Ljdk/vm/ci/meta/JavaKind;)I",                                                    FN_PTR(arrayBaseOffset)},
2752   {CC "arrayIndexScale",                              CC "(Ljdk/vm/ci/meta/JavaKind;)I",                                                    FN_PTR(arrayIndexScale)},
2753   {CC "getByte",                                      CC "(" OBJECTCONSTANT "J)B",                                                          FN_PTR(getByte)},
2754   {CC "getShort",                                     CC "(" OBJECTCONSTANT "J)S",                                                          FN_PTR(getShort)},
2755   {CC "getInt",                                       CC "(" OBJECTCONSTANT "J)I",                                                          FN_PTR(getInt)},
2756   {CC "getLong",                                      CC "(" OBJECTCONSTANT "J)J",                                                          FN_PTR(getLong)},
2757   {CC "getObject",                                    CC "(" OBJECTCONSTANT "J)" OBJECTCONSTANT,                                            FN_PTR(getObject)},
2758   {CC "deleteGlobalHandle",                           CC "(J)V",                                                                            FN_PTR(deleteGlobalHandle)},
2759   {CC "registerNativeMethods",                        CC "(" CLASS ")[J",                                                                   FN_PTR(registerNativeMethods)},
2760   {CC "isCurrentThreadAttached",                      CC "()Z",                                                                             FN_PTR(isCurrentThreadAttached)},
2761   {CC "getCurrentJavaThread",                         CC "()J",                                                                             FN_PTR(getCurrentJavaThread)},
2762   {CC "attachCurrentThread",                          CC "(Z)Z",                                                                            FN_PTR(attachCurrentThread)},
2763   {CC "detachCurrentThread",                          CC "()V",                                                                             FN_PTR(detachCurrentThread)},
2764   {CC "translate",                                    CC "(" OBJECT ")J",                                                                   FN_PTR(translate)},
2765   {CC "unhand",                                       CC "(J)" OBJECT,                                                                      FN_PTR(unhand)},
2766   {CC "updateHotSpotNmethod",                         CC "(" HS_NMETHOD ")V",                                                               FN_PTR(updateHotSpotNmethod)},
2767   {CC "getCode",                                      CC "(" HS_INSTALLED_CODE ")[B",                                                       FN_PTR(getCode)},
2768   {CC "asReflectionExecutable",                       CC "(" HS_RESOLVED_METHOD ")" REFLECTION_EXECUTABLE,                                  FN_PTR(asReflectionExecutable)},
2769   {CC "asReflectionField",                            CC "(" HS_RESOLVED_KLASS "I)" REFLECTION_FIELD,                                       FN_PTR(asReflectionField)},
2770   {CC "getFailedSpeculations",                        CC "(J[[B)[[B",                                                                       FN_PTR(getFailedSpeculations)},
2771   {CC "getFailedSpeculationsAddress",                 CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getFailedSpeculationsAddress)},
2772   {CC "releaseFailedSpeculations",                    CC "(J)V",                                                                            FN_PTR(releaseFailedSpeculations)},
2773   {CC "addFailedSpeculation",                         CC "(J[B)Z",                                                                          FN_PTR(addFailedSpeculation)},
2774   {CC "callSystemExit",                               CC "(I)V",                                                                            FN_PTR(callSystemExit)},
2775 };
2776 
2777 int CompilerToVM::methods_count() {
2778   return sizeof(methods) / sizeof(JNINativeMethod);
2779 }
--- EOF ---