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 "code/scopeDesc.hpp"
  26 #include "memory/oopFactory.hpp"
  27 #include "oops/cpCache.inline.hpp"
  28 #include "oops/generateOopMap.hpp"
  29 #include "oops/method.inline.hpp"
  30 #include "oops/objArrayOop.inline.hpp"
  31 #include "oops/typeArrayOop.inline.hpp"
  32 #include "compiler/compileBroker.hpp"
  33 #include "compiler/disassembler.hpp"
  34 #include "jvmci/jvmciCompilerToVM.hpp"
  35 #include "jvmci/jvmciCodeInstaller.hpp"
  36 #include "jvmci/jvmciRuntime.hpp"
  37 #include "runtime/jniHandles.inline.hpp"
  38 #include "runtime/timerTrace.hpp"
  39 #include "runtime/vframe_hp.hpp"
  40 
  41 
  42 void JNIHandleMark::push_jni_handle_block() {
  43   JavaThread* thread = JavaThread::current();
  44   if (thread != NULL) {
  45     // Allocate a new block for JNI handles.
  46     // Inlined code from jni_PushLocalFrame()
  47     JNIHandleBlock* java_handles = ((JavaThread*)thread)->active_handles();
  48     JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread);
  49     assert(compile_handles != NULL && java_handles != NULL, "should not be NULL");
  50     compile_handles->set_pop_frame_link(java_handles);
  51     thread->set_active_handles(compile_handles);
  52   }
  53 }
  54 
  55 void JNIHandleMark::pop_jni_handle_block() {
  56   JavaThread* thread = JavaThread::current();
  57   if (thread != NULL) {
  58     // Release our JNI handle block
  59     JNIHandleBlock* compile_handles = thread->active_handles();
  60     JNIHandleBlock* java_handles = compile_handles->pop_frame_link();
  61     thread->set_active_handles(java_handles);
  62     compile_handles->set_pop_frame_link(NULL);
  63     JNIHandleBlock::release_block(compile_handles, thread); // may block
  64   }
  65 }
  66 
  67 // Entry to native method implementation that transitions current thread to '_thread_in_vm'.
  68 #define C2V_VMENTRY(result_type, name, signature) \
  69   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
  70   TRACE_jvmci_1("CompilerToVM::" #name); \
  71   TRACE_CALL(result_type, jvmci_ ## name signature) \
  72   JVMCI_VM_ENTRY_MARK; \
  73 
  74 #define C2V_END }
  75 
  76 oop CompilerToVM::get_jvmci_method(const methodHandle& method, TRAPS) {
  77   if (method() != NULL) {
  78     JavaValue result(T_OBJECT);
  79     JavaCallArguments args;
  80     args.push_long((jlong) (address) method());
  81     JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_NULL);
  82 
  83     return (oop)result.get_jobject();
  84   }
  85   return NULL;
  86 }
  87 
  88 oop CompilerToVM::get_jvmci_type(Klass* klass, TRAPS) {
  89   if (klass != NULL) {
  90     JavaValue result(T_OBJECT);
  91     JavaCallArguments args;
  92     args.push_oop(Handle(THREAD, klass->java_mirror()));
  93     JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedObjectTypeImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::klass_fromMetaspace_signature(), &args, CHECK_NULL);
  94 
  95     return (oop)result.get_jobject();
  96   }
  97   return NULL;
  98 }
  99 
 100 
 101 jobjectArray readConfiguration0(JNIEnv *env, TRAPS);
 102 
 103 C2V_VMENTRY(jobjectArray, readConfiguration, (JNIEnv *env))
 104    jobjectArray config = readConfiguration0(env, CHECK_NULL);
 105    return config;
 106 C2V_END
 107 
 108 C2V_VMENTRY(jobject, getFlagValue, (JNIEnv *, jobject c2vm, jobject name_handle))
 109 #define RETURN_BOXED_LONG(value) oop box; jvalue p; p.j = (jlong) (value); box = java_lang_boxing_object::create(T_LONG, &p, CHECK_NULL); return JNIHandles::make_local(THREAD, box);
 110 #define RETURN_BOXED_DOUBLE(value) oop box; jvalue p; p.d = (jdouble) (value); box = java_lang_boxing_object::create(T_DOUBLE, &p, CHECK_NULL); return JNIHandles::make_local(THREAD, box);
 111   Handle name(THREAD, JNIHandles::resolve(name_handle));
 112   if (name.is_null()) {
 113     THROW_0(vmSymbols::java_lang_NullPointerException());
 114   }
 115   ResourceMark rm;
 116   const char* cstring = java_lang_String::as_utf8_string(name());
 117   Flag* flag = Flag::find_flag(cstring, strlen(cstring), /* allow_locked */ true, /* return_flag */ true);
 118   if (flag == NULL) {
 119     return c2vm;
 120   }
 121   if (flag->is_bool()) {
 122     jvalue prim;
 123     prim.z = flag->get_bool();
 124     oop box = java_lang_boxing_object::create(T_BOOLEAN, &prim, CHECK_NULL);
 125     return JNIHandles::make_local(THREAD, box);
 126   } else if (flag->is_ccstr()) {
 127     Handle value = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_NULL);
 128     return JNIHandles::make_local(THREAD, value());
 129   } else if (flag->is_intx()) {
 130     RETURN_BOXED_LONG(flag->get_intx());
 131   } else if (flag->is_int()) {
 132     RETURN_BOXED_LONG(flag->get_int());
 133   } else if (flag->is_uint()) {
 134     RETURN_BOXED_LONG(flag->get_uint());
 135   } else if (flag->is_uint64_t()) {
 136     RETURN_BOXED_LONG(flag->get_uint64_t());
 137   } else if (flag->is_size_t()) {
 138     RETURN_BOXED_LONG(flag->get_size_t());
 139   } else if (flag->is_uintx()) {
 140     RETURN_BOXED_LONG(flag->get_uintx());
 141   } else if (flag->is_double()) {
 142     RETURN_BOXED_DOUBLE(flag->get_double());
 143   } else {
 144     JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
 145   }
 146 #undef RETURN_BOXED_LONG
 147 #undef RETURN_BOXED_DOUBLE
 148 C2V_END
 149 
 150 C2V_VMENTRY(jbyteArray, getBytecode, (JNIEnv *, jobject, jobject jvmci_method))
 151   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 152   ResourceMark rm;
 153 
 154   int code_size = method->code_size();
 155   typeArrayOop reconstituted_code = oopFactory::new_byteArray(code_size, CHECK_NULL);
 156 
 157   guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
 158   // iterate over all bytecodes and replace non-Java bytecodes
 159 
 160   for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
 161     Bytecodes::Code code = s.code();
 162     Bytecodes::Code raw_code = s.raw_code();
 163     int bci = s.bci();
 164     int len = s.instruction_size();
 165 
 166     // Restore original byte code.
 167     reconstituted_code->byte_at_put(bci, (jbyte) (s.is_wide()? Bytecodes::_wide : code));
 168     if (len > 1) {
 169       memcpy(reconstituted_code->byte_at_addr(bci + 1), s.bcp()+1, len-1);
 170     }
 171 
 172     if (len > 1) {
 173       // Restore the big-endian constant pool indexes.
 174       // Cf. Rewriter::scan_method
 175       switch (code) {
 176         case Bytecodes::_getstatic:
 177         case Bytecodes::_putstatic:
 178         case Bytecodes::_getfield:
 179         case Bytecodes::_putfield:
 180         case Bytecodes::_invokevirtual:
 181         case Bytecodes::_invokespecial:
 182         case Bytecodes::_invokestatic:
 183         case Bytecodes::_invokeinterface:
 184         case Bytecodes::_invokehandle: {
 185           int cp_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
 186           Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
 187           break;
 188         }
 189 
 190         case Bytecodes::_invokedynamic: {
 191           int cp_index = Bytes::get_native_u4((address) reconstituted_code->byte_at_addr(bci + 1));
 192           Bytes::put_Java_u4((address) reconstituted_code->byte_at_addr(bci + 1), (u4) cp_index);
 193           break;
 194         }
 195 
 196         default:
 197           break;
 198       }
 199 
 200       // Not all ldc byte code are rewritten.
 201       switch (raw_code) {
 202         case Bytecodes::_fast_aldc: {
 203           int cpc_index = reconstituted_code->byte_at(bci + 1) & 0xff;
 204           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 205           assert(cp_index < method->constants()->length(), "sanity check");
 206           reconstituted_code->byte_at_put(bci + 1, (jbyte) cp_index);
 207           break;
 208         }
 209 
 210         case Bytecodes::_fast_aldc_w: {
 211           int cpc_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
 212           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 213           assert(cp_index < method->constants()->length(), "sanity check");
 214           Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
 215           break;
 216         }
 217 
 218         default:
 219           break;
 220       }
 221     }
 222   }
 223 
 224   return (jbyteArray) JNIHandles::make_local(THREAD, reconstituted_code);
 225 C2V_END
 226 
 227 C2V_VMENTRY(jint, getExceptionTableLength, (JNIEnv *, jobject, jobject jvmci_method))
 228   ResourceMark rm;
 229   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 230   return method->exception_table_length();
 231 C2V_END
 232 
 233 C2V_VMENTRY(jlong, getExceptionTableStart, (JNIEnv *, jobject, jobject jvmci_method))
 234   ResourceMark rm;
 235   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 236   if (method->exception_table_length() == 0) {
 237     return 0L;
 238   }
 239   return (jlong) (address) method->exception_table_start();
 240 C2V_END
 241 
 242 C2V_VMENTRY(jobject, asResolvedJavaMethod, (JNIEnv *, jobject, jobject executable_handle))
 243   oop executable = JNIHandles::resolve(executable_handle);
 244   oop mirror = NULL;
 245   int slot = 0;
 246 
 247   if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) {
 248     mirror = java_lang_reflect_Constructor::clazz(executable);
 249     slot = java_lang_reflect_Constructor::slot(executable);
 250   } else {
 251     assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
 252     mirror = java_lang_reflect_Method::clazz(executable);
 253     slot = java_lang_reflect_Method::slot(executable);
 254   }
 255   Klass* holder = java_lang_Class::as_Klass(mirror);
 256   methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
 257   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 258   return JNIHandles::make_local(THREAD, result);
 259 }
 260 
 261 C2V_VMENTRY(jobject, getResolvedJavaMethod, (JNIEnv *, jobject, jobject base, jlong offset))
 262   methodHandle method;
 263   oop base_object = JNIHandles::resolve(base);
 264   if (base_object == NULL) {
 265     method = *((Method**)(offset));
 266   } else if (base_object->is_a(SystemDictionary::ResolvedMethodName_klass())) {
 267     method = (Method*) (intptr_t) base_object->long_field(offset);
 268   } else if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 269     method = *((Method**)(HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object) + offset));
 270   } else {
 271     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 272                 err_msg("Unexpected type: %s", base_object->klass()->external_name()));
 273   }
 274   assert (method.is_null() || method->is_method(), "invalid read");
 275   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 276   return JNIHandles::make_local(THREAD, result);
 277 }
 278 
 279 C2V_VMENTRY(jobject, getConstantPool, (JNIEnv *, jobject, jobject object_handle))
 280   constantPoolHandle cp;
 281   oop object = JNIHandles::resolve(object_handle);
 282   if (object == NULL) {
 283     THROW_0(vmSymbols::java_lang_NullPointerException());
 284   }
 285   if (object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 286     cp = CompilerToVM::asMethod(object)->constMethod()->constants();
 287   } else if (object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
 288     cp = InstanceKlass::cast(CompilerToVM::asKlass(object))->constants();
 289   } else {
 290     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 291                 err_msg("Unexpected type: %s", object->klass()->external_name()));
 292   }
 293   assert(!cp.is_null(), "npe");
 294   JavaValue method_result(T_OBJECT);
 295   JavaCallArguments args;
 296   args.push_long((jlong) (address) cp());
 297   JavaCalls::call_static(&method_result, SystemDictionary::HotSpotConstantPool_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::constantPool_fromMetaspace_signature(), &args, CHECK_NULL);
 298   return JNIHandles::make_local(THREAD, (oop)method_result.get_jobject());
 299 }
 300 
 301 C2V_VMENTRY(jobject, getResolvedJavaType, (JNIEnv *, jobject, jobject base, jlong offset, jboolean compressed))
 302   Klass* klass = NULL;
 303   oop base_object = JNIHandles::resolve(base);
 304   jlong base_address = 0;
 305   if (base_object != NULL && offset == oopDesc::klass_offset_in_bytes()) {
 306     klass = base_object->klass();
 307   } else if (!compressed) {
 308     if (base_object != NULL) {
 309       if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 310         base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
 311       } else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
 312         base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
 313       } else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
 314         base_address = (jlong) CompilerToVM::asKlass(base_object);
 315       } else if (base_object->is_a(SystemDictionary::Class_klass())) {
 316         base_address = (jlong) (address) base_object;
 317       } else {
 318         THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 319                     err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
 320       }
 321     }
 322     klass = *((Klass**) (intptr_t) (base_address + offset));
 323   } else {
 324     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 325                 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
 326   }
 327   assert (klass == NULL || klass->is_klass(), "invalid read");
 328   oop result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
 329   return JNIHandles::make_local(THREAD, result);
 330 }
 331 
 332 C2V_VMENTRY(jobject, findUniqueConcreteMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
 333   ResourceMark rm;
 334   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 335   Klass* holder = CompilerToVM::asKlass(jvmci_type);
 336   if (holder->is_interface()) {
 337     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", holder->external_name()));
 338   }
 339 
 340   methodHandle ucm;
 341   {
 342     MutexLocker locker(Compile_lock);
 343     ucm = Dependencies::find_unique_concrete_method(holder, method());
 344   }
 345   oop result = CompilerToVM::get_jvmci_method(ucm, CHECK_NULL);
 346   return JNIHandles::make_local(THREAD, result);
 347 C2V_END
 348 
 349 C2V_VMENTRY(jobject, getImplementor, (JNIEnv *, jobject, jobject jvmci_type))
 350   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 351   if (!klass->is_interface()) {
 352     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 353         err_msg("Expected interface type, got %s", klass->external_name()));
 354   }
 355   InstanceKlass* iklass = InstanceKlass::cast(klass);
 356   oop implementor = CompilerToVM::get_jvmci_type(iklass->implementor(), CHECK_NULL);
 357   return JNIHandles::make_local(THREAD, implementor);
 358 C2V_END
 359 
 360 C2V_VMENTRY(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv *, jobject, jobject jvmci_method))
 361   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 362   return method->is_ignored_by_security_stack_walk();
 363 C2V_END
 364 
 365 C2V_VMENTRY(jboolean, isCompilable,(JNIEnv *, jobject, jobject jvmci_method))
 366   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 367   constantPoolHandle cp = method->constMethod()->constants();
 368   assert(!cp.is_null(), "npe");
 369   // don't inline method when constant pool contains a CONSTANT_Dynamic
 370   return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
 371 C2V_END
 372 
 373 C2V_VMENTRY(jboolean, hasNeverInlineDirective,(JNIEnv *, jobject, jobject jvmci_method))
 374   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 375   return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
 376 C2V_END
 377 
 378 C2V_VMENTRY(jboolean, shouldInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
 379   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 380   return CompilerOracle::should_inline(method) || method->force_inline();
 381 C2V_END
 382 
 383 C2V_VMENTRY(jobject, lookupType, (JNIEnv*, jobject, jstring jname, jclass accessing_class, jboolean resolve))
 384   ResourceMark rm;
 385   Handle name(THREAD, JNIHandles::resolve(jname));
 386   Symbol* class_name = java_lang_String::as_symbol(name(), CHECK_0);
 387   if (java_lang_String::length(name()) <= 1) {
 388     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
 389   }
 390 
 391   Klass* resolved_klass = NULL;
 392   if (JNIHandles::resolve(accessing_class) == NULL) {
 393     THROW_0(vmSymbols::java_lang_NullPointerException());
 394   }
 395   Klass* accessing_klass = java_lang_Class::as_Klass(JNIHandles::resolve(accessing_class));
 396   Handle class_loader(THREAD, accessing_klass->class_loader());
 397   Handle protection_domain(THREAD, accessing_klass->protection_domain());
 398 
 399   if (resolve) {
 400     resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
 401   } else {
 402     if (class_name->byte_at(0) == 'L' &&
 403       class_name->byte_at(class_name->utf8_length()-1) == ';') {
 404       // This is a name from a signature.  Strip off the trimmings.
 405       // Call recursive to keep scope of strippedsym.
 406       TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
 407                                                           class_name->utf8_length()-2,
 408                                                           CHECK_0);
 409       resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
 410     } else if (FieldType::is_array(class_name)) {
 411       FieldArrayInfo fd;
 412       // dimension and object_key in FieldArrayInfo are assigned as a side-effect
 413       // of this call
 414       BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
 415       if (t == T_OBJECT) {
 416         TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
 417                                                             class_name->utf8_length()-2-fd.dimension(),
 418                                                             CHECK_0);
 419         // naked oop "k" is OK here -- we assign back into it
 420         resolved_klass = SystemDictionary::find(strippedsym,
 421                                                              class_loader,
 422                                                              protection_domain,
 423                                                              CHECK_0);
 424         if (resolved_klass != NULL) {
 425           resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
 426         }
 427       } else {
 428         resolved_klass = Universe::typeArrayKlassObj(t);
 429         resolved_klass = TypeArrayKlass::cast(resolved_klass)->array_klass(fd.dimension(), CHECK_0);
 430       }
 431     }
 432   }
 433   oop result = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
 434   return JNIHandles::make_local(THREAD, result);
 435 C2V_END
 436 
 437 C2V_VMENTRY(jobject, resolveConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 438   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 439   oop result = cp->resolve_constant_at(index, CHECK_NULL);
 440   return JNIHandles::make_local(THREAD, result);
 441 C2V_END
 442 
 443 C2V_VMENTRY(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 444   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 445   oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
 446   return JNIHandles::make_local(THREAD, result);
 447 C2V_END
 448 
 449 C2V_VMENTRY(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 450   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 451   return cp->name_and_type_ref_index_at(index);
 452 C2V_END
 453 
 454 C2V_VMENTRY(jobject, lookupNameInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
 455   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 456   Handle sym = java_lang_String::create_from_symbol(cp->name_ref_at(which), CHECK_NULL);
 457   return JNIHandles::make_local(THREAD, sym());
 458 C2V_END
 459 
 460 C2V_VMENTRY(jobject, lookupSignatureInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
 461   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 462   Handle sym = java_lang_String::create_from_symbol(cp->signature_ref_at(which), CHECK_NULL);
 463   return JNIHandles::make_local(THREAD, sym());
 464 C2V_END
 465 
 466 C2V_VMENTRY(jint, lookupKlassRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 467   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 468   return cp->klass_ref_index_at(index);
 469 C2V_END
 470 
 471 C2V_VMENTRY(jobject, resolveTypeInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 472   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 473   Klass* resolved_klass = cp->klass_at(index, CHECK_NULL);
 474   oop klass = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
 475   return JNIHandles::make_local(THREAD, klass);
 476 C2V_END
 477 
 478 C2V_VMENTRY(jobject, lookupKlassInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 479   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 480   Klass* loading_klass = cp->pool_holder();
 481   bool is_accessible = false;
 482   Klass* klass = JVMCIEnv::get_klass_by_index(cp, index, is_accessible, loading_klass);
 483   Symbol* symbol = NULL;
 484   if (klass == NULL) {
 485     symbol = cp->klass_name_at(index);
 486   }
 487   oop result_oop;
 488   if (klass != NULL) {
 489     result_oop = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
 490   } else {
 491     Handle result = java_lang_String::create_from_symbol(symbol, CHECK_NULL);
 492     result_oop = result();
 493   }
 494   return JNIHandles::make_local(THREAD, result_oop);
 495 C2V_END
 496 
 497 C2V_VMENTRY(jobject, lookupAppendixInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 498   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 499   oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
 500   return JNIHandles::make_local(THREAD, appendix_oop);
 501 C2V_END
 502 
 503 C2V_VMENTRY(jobject, lookupMethodInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 504   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 505   InstanceKlass* pool_holder = cp->pool_holder();
 506   Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
 507   methodHandle method = JVMCIEnv::get_method_by_index(cp, index, bc, pool_holder);
 508   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 509   return JNIHandles::make_local(THREAD, result);
 510 C2V_END
 511 
 512 C2V_VMENTRY(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 513   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 514   return cp->remap_instruction_operand_from_cache(index);
 515 C2V_END
 516 
 517 C2V_VMENTRY(jobject, resolveFieldInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
 518   ResourceMark rm;
 519   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 520   Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
 521   fieldDescriptor fd;
 522   LinkInfo link_info(cp, index, (jvmci_method != NULL) ? CompilerToVM::asMethod(jvmci_method) : NULL, CHECK_0);
 523   LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
 524   typeArrayOop info = (typeArrayOop) JNIHandles::resolve(info_handle);
 525   if (info == NULL || info->length() != 3) {
 526     JVMCI_ERROR_NULL("info must not be null and have a length of 3");
 527   }
 528   info->int_at_put(0, fd.access_flags().as_int());
 529   info->int_at_put(1, fd.offset());
 530   info->int_at_put(2, fd.index());
 531   oop field_holder = CompilerToVM::get_jvmci_type(fd.field_holder(), CHECK_NULL);
 532   return JNIHandles::make_local(THREAD, field_holder);
 533 C2V_END
 534 
 535 C2V_VMENTRY(jint, getVtableIndexForInterfaceMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
 536   ResourceMark rm;
 537   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 538   Method* method = CompilerToVM::asMethod(jvmci_method);
 539   if (klass->is_interface()) {
 540     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", klass->external_name()));
 541   }
 542   if (!method->method_holder()->is_interface()) {
 543     THROW_MSG_0(vmSymbols::java_lang_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()));
 544   }
 545   if (!InstanceKlass::cast(klass)->is_linked()) {
 546     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
 547   }
 548   return LinkResolver::vtable_index_of_interface_method(klass, method);
 549 C2V_END
 550 
 551 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
 552   Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
 553   Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
 554   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 555 
 556   Klass* resolved     = method->method_holder();
 557   Symbol* h_name      = method->name();
 558   Symbol* h_signature = method->signature();
 559 
 560   if (MethodHandles::is_signature_polymorphic_method(method())) {
 561       // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
 562       return NULL;
 563   }
 564 
 565   LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
 566   methodHandle m;
 567   // Only do exact lookup if receiver klass has been linked.  Otherwise,
 568   // the vtable has not been setup, and the LinkResolver will fail.
 569   if (recv_klass->is_array_klass() ||
 570       (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
 571     if (resolved->is_interface()) {
 572       m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
 573     } else {
 574       m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
 575     }
 576   }
 577 
 578   if (m.is_null()) {
 579     // Return NULL if there was a problem with lookup (uninitialized class, etc.)
 580     return NULL;
 581   }
 582 
 583   oop result = CompilerToVM::get_jvmci_method(m, CHECK_NULL);
 584   return JNIHandles::make_local(THREAD, result);
 585 C2V_END
 586 
 587 C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type))
 588   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 589   assert(klass != NULL, "method must not be called for primitive types");
 590   return Dependencies::find_finalizable_subclass(klass) != NULL;
 591 C2V_END
 592 
 593 C2V_VMENTRY(jobject, getClassInitializer, (JNIEnv *, jobject, jobject jvmci_type))
 594   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 595   if (!klass->is_instance_klass()) {
 596     return NULL;
 597   }
 598   InstanceKlass* iklass = InstanceKlass::cast(klass);
 599   oop result = CompilerToVM::get_jvmci_method(iklass->class_initializer(), CHECK_NULL);
 600   return JNIHandles::make_local(THREAD, result);
 601 C2V_END
 602 
 603 C2V_VMENTRY(jlong, getMaxCallTargetOffset, (JNIEnv*, jobject, jlong addr))
 604   address target_addr = (address) addr;
 605   if (target_addr != 0x0) {
 606     int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
 607     int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
 608     return MAX2(ABS(off_low), ABS(off_high));
 609   }
 610   return -1;
 611 C2V_END
 612 
 613 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv *, jobject,  jobject jvmci_method))
 614   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 615   method->set_not_c1_compilable();
 616   method->set_not_c2_compilable();
 617   method->set_dont_inline(true);
 618 C2V_END
 619 
 620 C2V_VMENTRY(jint, installCode, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject installed_code, jobject speculation_log))
 621   ResourceMark rm;
 622   HandleMark hm;
 623   JNIHandleMark jni_hm;
 624 
 625   Handle target_handle(THREAD, JNIHandles::resolve(target));
 626   Handle compiled_code_handle(THREAD, JNIHandles::resolve(compiled_code));
 627   CodeBlob* cb = NULL;
 628   Handle installed_code_handle(THREAD, JNIHandles::resolve(installed_code));
 629   Handle speculation_log_handle(THREAD, JNIHandles::resolve(speculation_log));
 630 
 631   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
 632 
 633   TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
 634   bool is_immutable_PIC = HotSpotCompiledCode::isImmutablePIC(compiled_code_handle) > 0;
 635   CodeInstaller installer(is_immutable_PIC);
 636   JVMCIEnv::CodeInstallResult result = installer.install(compiler, target_handle, compiled_code_handle, cb, installed_code_handle, speculation_log_handle, CHECK_0);
 637 
 638   if (PrintCodeCacheOnCompilation) {
 639     stringStream s;
 640     // Dump code cache  into a buffer before locking the tty,
 641     {
 642       MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
 643       CodeCache::print_summary(&s, false);
 644     }
 645     ttyLocker ttyl;
 646     tty->print_raw_cr(s.as_string());
 647   }
 648 
 649   if (result != JVMCIEnv::ok) {
 650     assert(cb == NULL, "should be");
 651   } else {
 652     if (installed_code_handle.not_null()) {
 653       assert(installed_code_handle->is_a(InstalledCode::klass()), "wrong type");
 654       nmethod::invalidate_installed_code(installed_code_handle, CHECK_0);
 655       {
 656         // Ensure that all updates to the InstalledCode fields are consistent.
 657         MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
 658         InstalledCode::set_address(installed_code_handle, (jlong) cb);
 659         InstalledCode::set_version(installed_code_handle, InstalledCode::version(installed_code_handle) + 1);
 660         if (cb->is_nmethod()) {
 661           InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->as_nmethod_or_null()->verified_entry_point());
 662         } else {
 663           InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->code_begin());
 664         }
 665         if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
 666           HotSpotInstalledCode::set_size(installed_code_handle, cb->size());
 667           HotSpotInstalledCode::set_codeStart(installed_code_handle, (jlong) cb->code_begin());
 668           HotSpotInstalledCode::set_codeSize(installed_code_handle, cb->code_size());
 669         }
 670       }
 671     }
 672   }
 673   return result;
 674 C2V_END
 675 
 676 C2V_VMENTRY(jint, getMetadata, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject metadata))
 677   ResourceMark rm;
 678   HandleMark hm;
 679 
 680   Handle target_handle(THREAD, JNIHandles::resolve(target));
 681   Handle compiled_code_handle(THREAD, JNIHandles::resolve(compiled_code));
 682   Handle metadata_handle(THREAD, JNIHandles::resolve(metadata));
 683 
 684   CodeMetadata code_metadata;
 685   CodeBlob *cb = NULL;
 686   CodeInstaller installer(true /* immutable PIC compilation */);
 687 
 688   JVMCIEnv::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, CHECK_0);
 689   if (result != JVMCIEnv::ok) {
 690     return result;
 691   }
 692 
 693   if (code_metadata.get_nr_pc_desc() > 0) {
 694     typeArrayHandle pcArrayOop = oopFactory::new_byteArray_handle(sizeof(PcDesc) * code_metadata.get_nr_pc_desc(), CHECK_(JVMCIEnv::cache_full));
 695     memcpy(pcArrayOop->byte_at_addr(0), code_metadata.get_pc_desc(), sizeof(PcDesc) * code_metadata.get_nr_pc_desc());
 696     HotSpotMetaData::set_pcDescBytes(metadata_handle, pcArrayOop());
 697   }
 698 
 699   if (code_metadata.get_scopes_size() > 0) {
 700     typeArrayHandle scopesArrayOop = oopFactory::new_byteArray_handle(code_metadata.get_scopes_size(), CHECK_(JVMCIEnv::cache_full));
 701     memcpy(scopesArrayOop->byte_at_addr(0), code_metadata.get_scopes_desc(), code_metadata.get_scopes_size());
 702     HotSpotMetaData::set_scopesDescBytes(metadata_handle, scopesArrayOop());
 703   }
 704 
 705   RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
 706   typeArrayHandle relocArrayOop = oopFactory::new_byteArray_handle((int) reloc_buffer->size(), CHECK_(JVMCIEnv::cache_full));
 707   if (reloc_buffer->size() > 0) {
 708     memcpy(relocArrayOop->byte_at_addr(0), reloc_buffer->begin(), reloc_buffer->size());
 709   }
 710   HotSpotMetaData::set_relocBytes(metadata_handle, relocArrayOop());
 711 
 712   const OopMapSet* oopMapSet = installer.oopMapSet();
 713   {
 714     ResourceMark mark;
 715     ImmutableOopMapBuilder builder(oopMapSet);
 716     int oopmap_size = builder.heap_size();
 717     typeArrayHandle oopMapArrayHandle = oopFactory::new_byteArray_handle(oopmap_size, CHECK_(JVMCIEnv::cache_full));
 718     builder.generate_into((address) oopMapArrayHandle->byte_at_addr(0));
 719     HotSpotMetaData::set_oopMaps(metadata_handle, oopMapArrayHandle());
 720   }
 721 
 722   AOTOopRecorder* recorder = code_metadata.get_oop_recorder();
 723 
 724   int nr_meta_refs = recorder->nr_meta_refs();
 725   objArrayOop metadataArray = oopFactory::new_objectArray(nr_meta_refs, CHECK_(JVMCIEnv::cache_full));
 726   objArrayHandle metadataArrayHandle(THREAD, metadataArray);
 727   for (int i = 0; i < nr_meta_refs; ++i) {
 728     jobject element = recorder->meta_element(i);
 729     if (element == NULL) {
 730       return JVMCIEnv::cache_full;
 731     }
 732     metadataArrayHandle->obj_at_put(i, JNIHandles::resolve(element));
 733   }
 734   HotSpotMetaData::set_metadata(metadata_handle, metadataArrayHandle());
 735 
 736   ExceptionHandlerTable* handler = code_metadata.get_exception_table();
 737   int table_size = handler->size_in_bytes();
 738   typeArrayHandle exceptionArrayOop = oopFactory::new_byteArray_handle(table_size, CHECK_(JVMCIEnv::cache_full));
 739 
 740   if (table_size > 0) {
 741     handler->copy_bytes_to((address) exceptionArrayOop->byte_at_addr(0));
 742   }
 743   HotSpotMetaData::set_exceptionBytes(metadata_handle, exceptionArrayOop());
 744 
 745   return result;
 746 C2V_END
 747 
 748 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv *jniEnv, jobject))
 749   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
 750   CompilerStatistics* stats = compiler->stats();
 751   stats->_standard.reset();
 752   stats->_osr.reset();
 753 C2V_END
 754 
 755 C2V_VMENTRY(jobject, disassembleCodeBlob, (JNIEnv *jniEnv, jobject, jobject installedCode))
 756   ResourceMark rm;
 757   HandleMark hm;
 758 
 759   if (installedCode == NULL) {
 760     THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), "installedCode is null");
 761   }
 762 
 763   jlong codeBlob = InstalledCode::address(installedCode);
 764   if (codeBlob == 0L) {
 765     return NULL;
 766   }
 767 
 768   CodeBlob* cb = (CodeBlob*) (address) codeBlob;
 769   if (cb == NULL) {
 770     return NULL;
 771   }
 772 
 773   // We don't want the stringStream buffer to resize during disassembly as it
 774   // uses scoped resource memory. If a nested function called during disassembly uses
 775   // a ResourceMark and the buffer expands within the scope of the mark,
 776   // the buffer becomes garbage when that scope is exited. Experience shows that
 777   // the disassembled code is typically about 10x the code size so a fixed buffer
 778   // sized to 20x code size plus a fixed amount for header info should be sufficient.
 779   int bufferSize = cb->code_size() * 20 + 1024;
 780   char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
 781   stringStream st(buffer, bufferSize);
 782   if (cb->is_nmethod()) {
 783     nmethod* nm = (nmethod*) cb;
 784     if (!nm->is_alive()) {
 785       return NULL;
 786     }
 787   }
 788   Disassembler::decode(cb, &st);
 789   if (st.size() <= 0) {
 790     return NULL;
 791   }
 792 
 793   Handle result = java_lang_String::create_from_platform_dependent_str(st.as_string(), CHECK_NULL);
 794   return JNIHandles::make_local(THREAD, result());
 795 C2V_END
 796 
 797 C2V_VMENTRY(jobject, getStackTraceElement, (JNIEnv*, jobject, jobject jvmci_method, int bci))
 798   ResourceMark rm;
 799   HandleMark hm;
 800 
 801   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 802   oop element = java_lang_StackTraceElement::create(method, bci, CHECK_NULL);
 803   return JNIHandles::make_local(THREAD, element);
 804 C2V_END
 805 
 806 C2V_VMENTRY(jobject, executeInstalledCode, (JNIEnv*, jobject, jobject args, jobject hotspotInstalledCode))
 807   ResourceMark rm;
 808   HandleMark hm;
 809 
 810   jlong nmethodValue = InstalledCode::address(hotspotInstalledCode);
 811   if (nmethodValue == 0L) {
 812     THROW_NULL(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException());
 813   }
 814   nmethod* nm = (nmethod*) (address) nmethodValue;
 815   methodHandle mh = nm->method();
 816   Symbol* signature = mh->signature();
 817   JavaCallArguments jca(mh->size_of_parameters());
 818 
 819   JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
 820   JavaValue result(jap.get_ret_type());
 821   jca.set_alternative_target(nm);
 822   JavaCalls::call(&result, mh, &jca, CHECK_NULL);
 823 
 824   if (jap.get_ret_type() == T_VOID) {
 825     return NULL;
 826   } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
 827     return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
 828   } else {
 829     jvalue *value = (jvalue *) result.get_value_addr();
 830     // Narrow the value down if required (Important on big endian machines)
 831     switch (jap.get_ret_type()) {
 832       case T_BOOLEAN:
 833        value->z = (jboolean) value->i;
 834        break;
 835       case T_BYTE:
 836        value->b = (jbyte) value->i;
 837        break;
 838       case T_CHAR:
 839        value->c = (jchar) value->i;
 840        break;
 841       case T_SHORT:
 842        value->s = (jshort) value->i;
 843        break;
 844       default:
 845         break;
 846     }
 847     oop o = java_lang_boxing_object::create(jap.get_ret_type(), value, CHECK_NULL);
 848     return JNIHandles::make_local(THREAD, o);
 849   }
 850 C2V_END
 851 
 852 C2V_VMENTRY(jlongArray, getLineNumberTable, (JNIEnv *, jobject, jobject jvmci_method))
 853   Method* method = CompilerToVM::asMethod(jvmci_method);
 854   if (!method->has_linenumber_table()) {
 855     return NULL;
 856   }
 857   u2 num_entries = 0;
 858   CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
 859   while (streamForSize.read_pair()) {
 860     num_entries++;
 861   }
 862 
 863   CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
 864   typeArrayOop result = oopFactory::new_longArray(2 * num_entries, CHECK_NULL);
 865 
 866   int i = 0;
 867   jlong value;
 868   while (stream.read_pair()) {
 869     value = ((long) stream.bci());
 870     result->long_at_put(i, value);
 871     value = ((long) stream.line());
 872     result->long_at_put(i + 1, value);
 873     i += 2;
 874   }
 875 
 876   return (jlongArray) JNIHandles::make_local(THREAD, result);
 877 C2V_END
 878 
 879 C2V_VMENTRY(jlong, getLocalVariableTableStart, (JNIEnv *, jobject, jobject jvmci_method))
 880   ResourceMark rm;
 881   Method* method = CompilerToVM::asMethod(jvmci_method);
 882   if (!method->has_localvariable_table()) {
 883     return 0;
 884   }
 885   return (jlong) (address) method->localvariable_table_start();
 886 C2V_END
 887 
 888 C2V_VMENTRY(jint, getLocalVariableTableLength, (JNIEnv *, jobject, jobject jvmci_method))
 889   ResourceMark rm;
 890   Method* method = CompilerToVM::asMethod(jvmci_method);
 891   return method->localvariable_table_length();
 892 C2V_END
 893 
 894 C2V_VMENTRY(void, reprofile, (JNIEnv*, jobject, jobject jvmci_method))
 895   Method* method = CompilerToVM::asMethod(jvmci_method);
 896   MethodCounters* mcs = method->method_counters();
 897   if (mcs != NULL) {
 898     mcs->clear_counters();
 899   }
 900   NOT_PRODUCT(method->set_compiled_invocation_count(0));
 901 
 902   CompiledMethod* code = method->code();
 903   if (code != NULL) {
 904     code->make_not_entrant();
 905   }
 906 
 907   MethodData* method_data = method->method_data();
 908   if (method_data == NULL) {
 909     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
 910     method_data = MethodData::allocate(loader_data, method, CHECK);
 911     method->set_method_data(method_data);
 912   } else {
 913     method_data->initialize();
 914   }
 915 C2V_END
 916 
 917 
 918 C2V_VMENTRY(void, invalidateInstalledCode, (JNIEnv*, jobject, jobject installed_code))
 919   Handle installed_code_handle(THREAD, JNIHandles::resolve(installed_code));
 920   nmethod::invalidate_installed_code(installed_code_handle, CHECK);
 921 C2V_END
 922 
 923 C2V_VMENTRY(jlongArray, collectCounters, (JNIEnv*, jobject))
 924   typeArrayOop arrayOop = oopFactory::new_longArray(JVMCICounterSize, CHECK_NULL);
 925   JavaThread::collect_counters(arrayOop);
 926   return (jlongArray) JNIHandles::make_local(THREAD, arrayOop);
 927 C2V_END
 928 
 929 C2V_VMENTRY(int, allocateCompileId, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci))
 930   HandleMark hm;
 931   ResourceMark rm;
 932   if (JNIHandles::resolve(jvmci_method) == NULL) {
 933     THROW_0(vmSymbols::java_lang_NullPointerException());
 934   }
 935   Method* method = CompilerToVM::asMethod(jvmci_method);
 936   if (entry_bci >= method->code_size() || entry_bci < -1) {
 937     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Unexpected bci %d", entry_bci));
 938   }
 939   return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
 940 C2V_END
 941 
 942 
 943 C2V_VMENTRY(jboolean, isMature, (JNIEnv*, jobject, jlong metaspace_method_data))
 944   MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
 945   return mdo != NULL && mdo->is_mature();
 946 C2V_END
 947 
 948 C2V_VMENTRY(jboolean, hasCompiledCodeForOSR, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci, int comp_level))
 949   Method* method = CompilerToVM::asMethod(jvmci_method);
 950   return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
 951 C2V_END
 952 
 953 C2V_VMENTRY(jobject, getSymbol, (JNIEnv*, jobject, jlong symbol))
 954   Handle sym = java_lang_String::create_from_symbol((Symbol*)(address)symbol, CHECK_NULL);
 955   return JNIHandles::make_local(THREAD, sym());
 956 C2V_END
 957 
 958 bool matches(jobjectArray methods, Method* method) {
 959   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
 960 
 961   for (int i = 0; i < methods_oop->length(); i++) {
 962     oop resolved = methods_oop->obj_at(i);
 963     if (resolved->is_a(HotSpotResolvedJavaMethodImpl::klass()) && CompilerToVM::asMethod(resolved) == method) {
 964       return true;
 965     }
 966   }
 967   return false;
 968 }
 969 
 970 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
 971   CallInfo callinfo;
 972   Handle receiver = args->receiver();
 973   Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
 974   LinkInfo link_info(spec_klass, name, signature);
 975   LinkResolver::resolve_interface_call(
 976           callinfo, receiver, recvrKlass, link_info, true, CHECK);
 977   methodHandle method = callinfo.selected_method();
 978   assert(method.not_null(), "should have thrown exception");
 979 
 980   // Invoke the method
 981   JavaCalls::call(result, method, args, CHECK);
 982 }
 983 
 984 C2V_VMENTRY(jobject, iterateFrames, (JNIEnv*, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
 985   ResourceMark rm;
 986 
 987   if (!thread->has_last_Java_frame()) {
 988     return NULL;
 989   }
 990   Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
 991   Handle frame_reference = HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
 992   HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
 993 
 994   StackFrameStream fst(thread);
 995 
 996   jobjectArray methods = initial_methods;
 997 
 998   int frame_number = 0;
 999   vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1000 
1001   while (true) {
1002     // look for the given method
1003     bool realloc_called = false;
1004     while (true) {
1005       StackValueCollection* locals = NULL;
1006       if (vf->is_compiled_frame()) {
1007         // compiled method frame
1008         compiledVFrame* cvf = compiledVFrame::cast(vf);
1009         if (methods == NULL || matches(methods, cvf->method())) {
1010           if (initialSkip > 0) {
1011             initialSkip--;
1012           } else {
1013             ScopeDesc* scope = cvf->scope();
1014             // native wrappers do not have a scope
1015             if (scope != NULL && scope->objects() != NULL) {
1016               GrowableArray<ScopeValue*>* objects;
1017               if (!realloc_called) {
1018                 objects = scope->objects();
1019               } else {
1020                 // some object might already have been re-allocated, only reallocate the non-allocated ones
1021                 objects = new GrowableArray<ScopeValue*>(scope->objects()->length());
1022                 int ii = 0;
1023                 for (int i = 0; i < scope->objects()->length(); i++) {
1024                   ObjectValue* sv = (ObjectValue*) scope->objects()->at(i);
1025                   if (sv->value().is_null()) {
1026                     objects->at_put(ii++, sv);
1027                   }
1028                 }
1029               }
1030               bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), objects, CHECK_NULL);
1031               Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1032               realloc_called = true;
1033 
1034               GrowableArray<ScopeValue*>* local_values = scope->locals();
1035               assert(local_values != NULL, "NULL locals");
1036               typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1037               typeArrayHandle array(THREAD, array_oop);
1038               for (int i = 0; i < local_values->length(); i++) {
1039                 ScopeValue* value = local_values->at(i);
1040                 if (value->is_object()) {
1041                   array->bool_at_put(i, true);
1042                 }
1043               }
1044               HotSpotStackFrameReference::set_localIsVirtual(frame_reference, array());
1045             } else {
1046               HotSpotStackFrameReference::set_localIsVirtual(frame_reference, NULL);
1047             }
1048 
1049             locals = cvf->locals();
1050             HotSpotStackFrameReference::set_bci(frame_reference, cvf->bci());
1051             oop method = CompilerToVM::get_jvmci_method(cvf->method(), CHECK_NULL);
1052             HotSpotStackFrameReference::set_method(frame_reference, method);
1053           }
1054         }
1055       } else if (vf->is_interpreted_frame()) {
1056         // interpreted method frame
1057         interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1058         if (methods == NULL || matches(methods, ivf->method())) {
1059           if (initialSkip > 0) {
1060             initialSkip--;
1061           } else {
1062             locals = ivf->locals();
1063             HotSpotStackFrameReference::set_bci(frame_reference, ivf->bci());
1064             oop method = CompilerToVM::get_jvmci_method(ivf->method(), CHECK_NULL);
1065             HotSpotStackFrameReference::set_method(frame_reference, method);
1066             HotSpotStackFrameReference::set_localIsVirtual(frame_reference, NULL);
1067           }
1068         }
1069       }
1070 
1071       // locals != NULL means that we found a matching frame and result is already partially initialized
1072       if (locals != NULL) {
1073         methods = match_methods;
1074         HotSpotStackFrameReference::set_compilerToVM(frame_reference, JNIHandles::resolve(compilerToVM));
1075         HotSpotStackFrameReference::set_stackPointer(frame_reference, (jlong) fst.current()->sp());
1076         HotSpotStackFrameReference::set_frameNumber(frame_reference, frame_number);
1077 
1078         // initialize the locals array
1079         objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1080         objArrayHandle array(THREAD, array_oop);
1081         for (int i = 0; i < locals->size(); i++) {
1082           StackValue* var = locals->at(i);
1083           if (var->type() == T_OBJECT) {
1084             array->obj_at_put(i, locals->at(i)->get_obj()());
1085           }
1086         }
1087         HotSpotStackFrameReference::set_locals(frame_reference, array());
1088         HotSpotStackFrameReference::set_objectsMaterialized(frame_reference, JNI_FALSE);
1089 
1090         JavaValue result(T_OBJECT);
1091         JavaCallArguments args(visitor);
1092         args.push_oop(frame_reference);
1093         call_interface(&result, SystemDictionary::InspectedFrameVisitor_klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1094         if (result.get_jobject() != NULL) {
1095           return JNIHandles::make_local(thread, (oop) result.get_jobject());
1096         }
1097         assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1098         if (HotSpotStackFrameReference::objectsMaterialized(frame_reference) == JNI_TRUE) {
1099           // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1100           intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(frame_reference);
1101           fst = StackFrameStream(thread);
1102           while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1103             fst.next();
1104           }
1105           if (fst.current()->sp() != stack_pointer) {
1106             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1107           }
1108           vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1109           if (!vf->is_compiled_frame()) {
1110             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1111           }
1112           for (int i = 0; i < frame_number; i++) {
1113             if (vf->is_top()) {
1114               THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1115             }
1116             vf = vf->sender();
1117             assert(vf->is_compiled_frame(), "Wrong frame type");
1118           }
1119         }
1120         frame_reference = HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1121         HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1122       }
1123 
1124       if (vf->is_top()) {
1125         break;
1126       }
1127       frame_number++;
1128       vf = vf->sender();
1129     } // end of vframe loop
1130 
1131     if (fst.is_done()) {
1132       break;
1133     }
1134     fst.next();
1135     vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1136     frame_number = 0;
1137   } // end of frame loop
1138 
1139   // the end was reached without finding a matching method
1140   return NULL;
1141 C2V_END
1142 
1143 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1144   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1145   CallInfo callInfo;
1146   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1147   ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1148   cp_cache_entry->set_dynamic_call(cp, callInfo);
1149 C2V_END
1150 
1151 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1152   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1153   Klass* holder = cp->klass_ref_at(index, CHECK);
1154   Symbol* name = cp->name_ref_at(index);
1155   if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1156     CallInfo callInfo;
1157     LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1158     ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1159     cp_cache_entry->set_method_handle(cp, callInfo);
1160   }
1161 C2V_END
1162 
1163 C2V_VMENTRY(jint, isResolvedInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1164   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1165   ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1166   if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1167     // MethodHandle.invoke* --> LambdaForm?
1168     ResourceMark rm;
1169 
1170     LinkInfo link_info(cp, index, CATCH);
1171 
1172     Klass* resolved_klass = link_info.resolved_klass();
1173 
1174     Symbol* name_sym = cp->name_ref_at(index);
1175 
1176     vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1177     vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1178 
1179     methodHandle adapter_method(cp_cache_entry->f1_as_method());
1180 
1181     methodHandle resolved_method(adapter_method);
1182 
1183     // Can we treat it as a regular invokevirtual?
1184     if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1185       vmassert(!resolved_method->is_static(),"!");
1186       vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1187       vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1188       vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1189       vmassert(cp_cache_entry->method_type_if_resolved(cp) == NULL, "!");
1190 
1191       methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1192       vmassert(m == resolved_method, "!!");
1193       return -1;
1194     }
1195 
1196     return Bytecodes::_invokevirtual;
1197   }
1198   if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1199     return Bytecodes::_invokedynamic;
1200   }
1201   return -1;
1202 C2V_END
1203 
1204 
1205 C2V_VMENTRY(jobject, getSignaturePolymorphicHolders, (JNIEnv*, jobject))
1206   objArrayHandle holders = oopFactory::new_objArray_handle(SystemDictionary::String_klass(), 2, CHECK_NULL);
1207   Handle mh = java_lang_String::create_from_str("Ljava/lang/invoke/MethodHandle;", CHECK_NULL);
1208   Handle vh = java_lang_String::create_from_str("Ljava/lang/invoke/VarHandle;", CHECK_NULL);
1209   holders->obj_at_put(0, mh());
1210   holders->obj_at_put(1, vh());
1211   return JNIHandles::make_local(THREAD, holders());
1212 C2V_END
1213 
1214 C2V_VMENTRY(jboolean, shouldDebugNonSafepoints, (JNIEnv*, jobject))
1215   //see compute_recording_non_safepoints in debugInfroRec.cpp
1216   if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1217     return true;
1218   }
1219   return DebugNonSafepoints;
1220 C2V_END
1221 
1222 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1223 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv*, jobject, jobject hs_frame, bool invalidate))
1224   ResourceMark rm;
1225 
1226   if (hs_frame == NULL) {
1227     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "stack frame is null")
1228   }
1229 
1230   HotSpotStackFrameReference::klass()->initialize(CHECK);
1231 
1232   // look for the given stack frame
1233   StackFrameStream fst(thread);
1234   intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
1235   while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1236     fst.next();
1237   }
1238   if (fst.current()->sp() != stack_pointer) {
1239     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
1240   }
1241 
1242   if (invalidate) {
1243     if (!fst.current()->is_compiled_frame()) {
1244       THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1245     }
1246     assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1247     ((nmethod*) fst.current()->cb())->make_not_entrant();
1248   }
1249   Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1250   // look for the frame again as it has been updated by deopt (pc, deopt state...)
1251   StackFrameStream fstAfterDeopt(thread);
1252   while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1253     fstAfterDeopt.next();
1254   }
1255   if (fstAfterDeopt.current()->sp() != stack_pointer) {
1256     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1257   }
1258 
1259   vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1260   if (!vf->is_compiled_frame()) {
1261     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1262   }
1263 
1264   GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1265   while (true) {
1266     assert(vf->is_compiled_frame(), "Wrong frame type");
1267     virtualFrames->push(compiledVFrame::cast(vf));
1268     if (vf->is_top()) {
1269       break;
1270     }
1271     vf = vf->sender();
1272   }
1273 
1274   int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
1275   if (last_frame_number >= virtualFrames->length()) {
1276     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
1277   }
1278 
1279   // Reallocate the non-escaping objects and restore their fields.
1280   assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1281   GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1282 
1283   if (objects == NULL) {
1284     // no objects to materialize
1285     return;
1286   }
1287 
1288   bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), objects, CHECK);
1289   Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1290 
1291   for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1292     compiledVFrame* cvf = virtualFrames->at(frame_index);
1293 
1294     GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1295     StackValueCollection* locals = cvf->locals();
1296     if (locals != NULL) {
1297       for (int i2 = 0; i2 < locals->size(); i2++) {
1298         StackValue* var = locals->at(i2);
1299         if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1300           jvalue val;
1301           val.l = (jobject) locals->at(i2)->get_obj()();
1302           cvf->update_local(T_OBJECT, i2, val);
1303         }
1304       }
1305     }
1306 
1307     GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1308     StackValueCollection* expressions = cvf->expressions();
1309     if (expressions != NULL) {
1310       for (int i2 = 0; i2 < expressions->size(); i2++) {
1311         StackValue* var = expressions->at(i2);
1312         if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1313           jvalue val;
1314           val.l = (jobject) expressions->at(i2)->get_obj()();
1315           cvf->update_stack(T_OBJECT, i2, val);
1316         }
1317       }
1318     }
1319 
1320     GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1321     GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1322     if (monitors != NULL) {
1323       for (int i2 = 0; i2 < monitors->length(); i2++) {
1324         cvf->update_monitor(i2, monitors->at(i2));
1325       }
1326     }
1327   }
1328 
1329   // all locals are materialized by now
1330   HotSpotStackFrameReference::set_localIsVirtual(hs_frame, NULL);
1331 
1332   // update the locals array
1333   objArrayHandle array(THREAD, HotSpotStackFrameReference::locals(hs_frame));
1334   StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1335   for (int i = 0; i < locals->size(); i++) {
1336     StackValue* var = locals->at(i);
1337     if (var->type() == T_OBJECT) {
1338       array->obj_at_put(i, locals->at(i)->get_obj()());
1339     }
1340   }
1341   HotSpotStackFrameReference::set_objectsMaterialized(hs_frame, JNI_TRUE);
1342 C2V_END
1343 
1344 C2V_VMENTRY(void, writeDebugOutput, (JNIEnv*, jobject, jbyteArray bytes, jint offset, jint length))
1345   if (bytes == NULL) {
1346     THROW(vmSymbols::java_lang_NullPointerException());
1347   }
1348   typeArrayOop array = (typeArrayOop) JNIHandles::resolve(bytes);
1349 
1350   // Check if offset and length are non negative.
1351   if (offset < 0 || length < 0) {
1352     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1353   }
1354   // Check if the range is valid.
1355   if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array->length())) {
1356     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1357   }
1358   while (length > 0) {
1359     jbyte* start = array->byte_at_addr(offset);
1360     tty->write((char*) start, MIN2(length, (jint)O_BUFLEN));
1361     length -= O_BUFLEN;
1362     offset += O_BUFLEN;
1363   }
1364 C2V_END
1365 
1366 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv*, jobject))
1367   tty->flush();
1368 C2V_END
1369 
1370 C2V_VMENTRY(int, methodDataProfileDataSize, (JNIEnv*, jobject, jlong metaspace_method_data, jint position))
1371   ResourceMark rm;
1372   MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
1373   ProfileData* profile_data = mdo->data_at(position);
1374   if (mdo->is_valid(profile_data)) {
1375     return profile_data->size_in_bytes();
1376   }
1377   DataLayout* data    = mdo->extra_data_base();
1378   DataLayout* end   = mdo->extra_data_limit();
1379   for (;; data = mdo->next_extra(data)) {
1380     assert(data < end, "moved past end of extra data");
1381     profile_data = data->data_in();
1382     if (mdo->dp_to_di(profile_data->dp()) == position) {
1383       return profile_data->size_in_bytes();
1384     }
1385   }
1386   THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Invalid profile data position %d", position));
1387 C2V_END
1388 
1389 C2V_VMENTRY(jlong, getFingerprint, (JNIEnv*, jobject, jlong metaspace_klass))
1390   Klass *k = CompilerToVM::asKlass(metaspace_klass);
1391   if (k->is_instance_klass()) {
1392     return InstanceKlass::cast(k)->get_stored_fingerprint();
1393   } else {
1394     return 0;
1395   }
1396 C2V_END
1397 
1398 C2V_VMENTRY(jobject, getHostClass, (JNIEnv*, jobject, jobject jvmci_type))
1399   InstanceKlass* k = InstanceKlass::cast(CompilerToVM::asKlass(jvmci_type));
1400   InstanceKlass* host = k->host_klass();
1401   oop result = CompilerToVM::get_jvmci_type(host, CHECK_NULL);
1402   return JNIHandles::make_local(THREAD, result);
1403 C2V_END
1404 
1405 C2V_VMENTRY(int, interpreterFrameSize, (JNIEnv*, jobject, jobject bytecode_frame_handle))
1406   if (bytecode_frame_handle == NULL) {
1407     THROW_0(vmSymbols::java_lang_NullPointerException());
1408   }
1409 
1410   oop top_bytecode_frame = JNIHandles::resolve_non_null(bytecode_frame_handle);
1411   oop bytecode_frame = top_bytecode_frame;
1412   int size = 0;
1413   int callee_parameters = 0;
1414   int callee_locals = 0;
1415   Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame));
1416   int extra_args = method->max_stack() - BytecodeFrame::numStack(bytecode_frame);
1417 
1418   while (bytecode_frame != NULL) {
1419     int locks = BytecodeFrame::numLocks(bytecode_frame);
1420     int temps = BytecodeFrame::numStack(bytecode_frame);
1421     bool is_top_frame = (bytecode_frame == top_bytecode_frame);
1422     Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame));
1423 
1424     int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1425                                                                  temps + callee_parameters,
1426                                                                  extra_args,
1427                                                                  locks,
1428                                                                  callee_parameters,
1429                                                                  callee_locals,
1430                                                                  is_top_frame);
1431     size += frame_size;
1432 
1433     callee_parameters = method->size_of_parameters();
1434     callee_locals = method->max_locals();
1435     extra_args = 0;
1436     bytecode_frame = BytecodePosition::caller(bytecode_frame);
1437   }
1438   return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1439 C2V_END
1440 
1441 C2V_VMENTRY(void, compileToBytecode, (JNIEnv*, jobject, jobject lambda_form_handle))
1442   Handle lambda_form(THREAD, JNIHandles::resolve_non_null(lambda_form_handle));
1443   if (lambda_form->is_a(SystemDictionary::LambdaForm_klass())) {
1444     TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode", CHECK);
1445     JavaValue result(T_VOID);
1446     JavaCalls::call_special(&result, lambda_form, SystemDictionary::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1447   } else {
1448     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
1449                 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()));
1450   }
1451 C2V_END
1452 
1453 #define CC (char*)  /*cast a literal from (const char*)*/
1454 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
1455 
1456 #define STRING                  "Ljava/lang/String;"
1457 #define OBJECT                  "Ljava/lang/Object;"
1458 #define CLASS                   "Ljava/lang/Class;"
1459 #define EXECUTABLE              "Ljava/lang/reflect/Executable;"
1460 #define STACK_TRACE_ELEMENT     "Ljava/lang/StackTraceElement;"
1461 #define INSTALLED_CODE          "Ljdk/vm/ci/code/InstalledCode;"
1462 #define TARGET_DESCRIPTION      "Ljdk/vm/ci/code/TargetDescription;"
1463 #define BYTECODE_FRAME          "Ljdk/vm/ci/code/BytecodeFrame;"
1464 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
1465 #define RESOLVED_METHOD         "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
1466 #define HS_RESOLVED_METHOD      "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
1467 #define HS_RESOLVED_KLASS       "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
1468 #define HS_CONSTANT_POOL        "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
1469 #define HS_COMPILED_CODE        "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
1470 #define HS_CONFIG               "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
1471 #define HS_METADATA             "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
1472 #define HS_STACK_FRAME_REF      "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
1473 #define HS_SPECULATION_LOG      "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
1474 #define METASPACE_METHOD_DATA   "J"
1475 
1476 JNINativeMethod CompilerToVM::methods[] = {
1477   {CC "getBytecode",                                  CC "(" HS_RESOLVED_METHOD ")[B",                                                      FN_PTR(getBytecode)},
1478   {CC "getExceptionTableStart",                       CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getExceptionTableStart)},
1479   {CC "getExceptionTableLength",                      CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getExceptionTableLength)},
1480   {CC "findUniqueConcreteMethod",                     CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD,                   FN_PTR(findUniqueConcreteMethod)},
1481   {CC "getImplementor",                               CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getImplementor)},
1482   {CC "getStackTraceElement",                         CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT,                                   FN_PTR(getStackTraceElement)},
1483   {CC "methodIsIgnoredBySecurityStackWalk",           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(methodIsIgnoredBySecurityStackWalk)},
1484   {CC "setNotInlinableOrCompilable",                  CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(setNotInlinableOrCompilable)},
1485   {CC "isCompilable",                                 CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(isCompilable)},
1486   {CC "hasNeverInlineDirective",                      CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(hasNeverInlineDirective)},
1487   {CC "shouldInlineMethod",                           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(shouldInlineMethod)},
1488   {CC "lookupType",                                   CC "(" STRING CLASS "Z)" HS_RESOLVED_KLASS,                                           FN_PTR(lookupType)},
1489   {CC "lookupNameInPool",                             CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupNameInPool)},
1490   {CC "lookupNameAndTypeRefIndexInPool",              CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupNameAndTypeRefIndexInPool)},
1491   {CC "lookupSignatureInPool",                        CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupSignatureInPool)},
1492   {CC "lookupKlassRefIndexInPool",                    CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupKlassRefIndexInPool)},
1493   {CC "lookupKlassInPool",                            CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;",                                       FN_PTR(lookupKlassInPool)},
1494   {CC "lookupAppendixInPool",                         CC "(" HS_CONSTANT_POOL "I)" OBJECT,                                                  FN_PTR(lookupAppendixInPool)},
1495   {CC "lookupMethodInPool",                           CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD,                                     FN_PTR(lookupMethodInPool)},
1496   {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(constantPoolRemapInstructionOperandFromCache)},
1497   {CC "resolveConstantInPool",                        CC "(" HS_CONSTANT_POOL "I)" OBJECT,                                                  FN_PTR(resolveConstantInPool)},
1498   {CC "resolvePossiblyCachedConstantInPool",          CC "(" HS_CONSTANT_POOL "I)" OBJECT,                                                  FN_PTR(resolvePossiblyCachedConstantInPool)},
1499   {CC "resolveTypeInPool",                            CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS,                                       FN_PTR(resolveTypeInPool)},
1500   {CC "resolveFieldInPool",                           CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS,              FN_PTR(resolveFieldInPool)},
1501   {CC "resolveInvokeDynamicInPool",                   CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeDynamicInPool)},
1502   {CC "resolveInvokeHandleInPool",                    CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeHandleInPool)},
1503   {CC "isResolvedInvokeHandleInPool",                 CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(isResolvedInvokeHandleInPool)},
1504   {CC "resolveMethod",                                CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
1505   {CC "getSignaturePolymorphicHolders",               CC "()[" STRING,                                                                      FN_PTR(getSignaturePolymorphicHolders)},
1506   {CC "getVtableIndexForInterfaceMethod",             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I",                                     FN_PTR(getVtableIndexForInterfaceMethod)},
1507   {CC "getClassInitializer",                          CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD,                                      FN_PTR(getClassInitializer)},
1508   {CC "hasFinalizableSubclass",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(hasFinalizableSubclass)},
1509   {CC "getMaxCallTargetOffset",                       CC "(J)J",                                                                            FN_PTR(getMaxCallTargetOffset)},
1510   {CC "asResolvedJavaMethod",                         CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD,                                             FN_PTR(asResolvedJavaMethod)},
1511   {CC "getResolvedJavaMethod",                        CC "(Ljava/lang/Object;J)" HS_RESOLVED_METHOD,                                        FN_PTR(getResolvedJavaMethod)},
1512   {CC "getConstantPool",                              CC "(Ljava/lang/Object;)" HS_CONSTANT_POOL,                                           FN_PTR(getConstantPool)},
1513   {CC "getResolvedJavaType",                          CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS,                                        FN_PTR(getResolvedJavaType)},
1514   {CC "readConfiguration",                            CC "()[" OBJECT,                                                                      FN_PTR(readConfiguration)},
1515   {CC "installCode",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE HS_SPECULATION_LOG ")I",    FN_PTR(installCode)},
1516   {CC "getMetadata",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I",                          FN_PTR(getMetadata)},
1517   {CC "resetCompilationStatistics",                   CC "()V",                                                                             FN_PTR(resetCompilationStatistics)},
1518   {CC "disassembleCodeBlob",                          CC "(" INSTALLED_CODE ")" STRING,                                                     FN_PTR(disassembleCodeBlob)},
1519   {CC "executeInstalledCode",                         CC "([" OBJECT INSTALLED_CODE ")" OBJECT,                                             FN_PTR(executeInstalledCode)},
1520   {CC "getLineNumberTable",                           CC "(" HS_RESOLVED_METHOD ")[J",                                                      FN_PTR(getLineNumberTable)},
1521   {CC "getLocalVariableTableStart",                   CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getLocalVariableTableStart)},
1522   {CC "getLocalVariableTableLength",                  CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getLocalVariableTableLength)},
1523   {CC "reprofile",                                    CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(reprofile)},
1524   {CC "invalidateInstalledCode",                      CC "(" INSTALLED_CODE ")V",                                                           FN_PTR(invalidateInstalledCode)},
1525   {CC "collectCounters",                              CC "()[J",                                                                            FN_PTR(collectCounters)},
1526   {CC "allocateCompileId",                            CC "(" HS_RESOLVED_METHOD "I)I",                                                      FN_PTR(allocateCompileId)},
1527   {CC "isMature",                                     CC "(" METASPACE_METHOD_DATA ")Z",                                                    FN_PTR(isMature)},
1528   {CC "hasCompiledCodeForOSR",                        CC "(" HS_RESOLVED_METHOD "II)Z",                                                     FN_PTR(hasCompiledCodeForOSR)},
1529   {CC "getSymbol",                                    CC "(J)" STRING,                                                                      FN_PTR(getSymbol)},
1530   {CC "iterateFrames",                                CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT,   FN_PTR(iterateFrames)},
1531   {CC "materializeVirtualObjects",                    CC "(" HS_STACK_FRAME_REF "Z)V",                                                      FN_PTR(materializeVirtualObjects)},
1532   {CC "shouldDebugNonSafepoints",                     CC "()Z",                                                                             FN_PTR(shouldDebugNonSafepoints)},
1533   {CC "writeDebugOutput",                             CC "([BII)V",                                                                         FN_PTR(writeDebugOutput)},
1534   {CC "flushDebugOutput",                             CC "()V",                                                                             FN_PTR(flushDebugOutput)},
1535   {CC "methodDataProfileDataSize",                    CC "(JI)I",                                                                           FN_PTR(methodDataProfileDataSize)},
1536   {CC "getFingerprint",                               CC "(J)J",                                                                            FN_PTR(getFingerprint)},
1537   {CC "getHostClass",                                 CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getHostClass)},
1538   {CC "interpreterFrameSize",                         CC "(" BYTECODE_FRAME ")I",                                                           FN_PTR(interpreterFrameSize)},
1539   {CC "compileToBytecode",                            CC "(" OBJECT ")V",                                                                   FN_PTR(compileToBytecode)},
1540   {CC "getFlagValue",                                 CC "(" STRING ")" OBJECT,                                                             FN_PTR(getFlagValue)},
1541 };
1542 
1543 int CompilerToVM::methods_count() {
1544   return sizeof(methods) / sizeof(JNINativeMethod);
1545 }