1 /*
   2  * Copyright (c) 2011, 2015, 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/codeCache.hpp"
  26 #include "code/scopeDesc.hpp"
  27 #include "interpreter/linkResolver.hpp"
  28 #include "memory/oopFactory.hpp"
  29 #include "oops/generateOopMap.hpp"
  30 #include "oops/fieldStreams.hpp"
  31 #include "oops/oop.inline.hpp"
  32 #include "oops/objArrayOop.inline.hpp"
  33 #include "runtime/fieldDescriptor.hpp"
  34 #include "runtime/javaCalls.hpp"
  35 #include "jvmci/jvmciRuntime.hpp"
  36 #include "compiler/abstractCompiler.hpp"
  37 #include "compiler/compileBroker.hpp"
  38 #include "compiler/compilerOracle.hpp"
  39 #include "compiler/disassembler.hpp"
  40 #include "compiler/oopMap.hpp"
  41 #include "jvmci/jvmciCompilerToVM.hpp"
  42 #include "jvmci/jvmciCompiler.hpp"
  43 #include "jvmci/jvmciEnv.hpp"
  44 #include "jvmci/jvmciJavaClasses.hpp"
  45 #include "jvmci/jvmciCodeInstaller.hpp"
  46 #include "gc/g1/heapRegion.hpp"
  47 #include "runtime/javaCalls.hpp"
  48 #include "runtime/deoptimization.hpp"
  49 #include "runtime/vframe.hpp"
  50 #include "runtime/vframe_hp.hpp"
  51 #include "runtime/vmStructs.hpp"
  52 
  53 
  54 // Entry to native method implementation that transitions current thread to '_thread_in_vm'.
  55 #define C2V_VMENTRY(result_type, name, signature) \
  56   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
  57   TRACE_jvmci_1("CompilerToVM::" #name); \
  58   TRACE_CALL(result_type, jvmci_ ## name signature) \
  59   JVMCI_VM_ENTRY_MARK; \
  60 
  61 #define C2V_END }
  62 
  63 oop CompilerToVM::get_jvmci_method(const methodHandle& method, TRAPS) {
  64   if (method() != NULL) {
  65     JavaValue result(T_OBJECT);
  66     JavaCallArguments args;
  67     args.push_long((jlong) (address) method());
  68     JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_NULL);
  69 
  70     return (oop)result.get_jobject();
  71   }
  72   return NULL;
  73 }
  74 
  75 oop CompilerToVM::get_jvmci_type(KlassHandle klass, TRAPS) {
  76   if (klass() != NULL) {
  77     JavaValue result(T_OBJECT);
  78     JavaCallArguments args;
  79     args.push_oop(klass->java_mirror());
  80     JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedObjectTypeImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::klass_fromMetaspace_signature(), &args, CHECK_NULL);
  81 
  82     return (oop)result.get_jobject();
  83   }
  84   return NULL;
  85 }
  86 
  87 void CompilerToVM::invalidate_installed_code(Handle installedCode, TRAPS) {
  88   if (installedCode() == NULL) {
  89     THROW(vmSymbols::java_lang_NullPointerException());
  90   }
  91   jlong nativeMethod = InstalledCode::address(installedCode);
  92   nmethod* nm = (nmethod*)nativeMethod;
  93   assert(nm == NULL || nm->jvmci_installed_code() == installedCode(), "sanity check");
  94   if (nm != NULL && nm->is_alive()) {
  95     // The nmethod state machinery maintains the link between the
  96     // HotSpotInstalledCode and nmethod* so as long as the nmethod appears to be
  97     // alive assume there is work to do and deoptimize the nmethod.
  98     nm->mark_for_deoptimization();
  99     VM_Deoptimize op;
 100     VMThread::execute(&op);
 101   }
 102   InstalledCode::set_address(installedCode, 0);
 103 }
 104 
 105 extern "C" {
 106 extern VMStructEntry* gHotSpotVMStructs;
 107 extern uint64_t gHotSpotVMStructEntryTypeNameOffset;
 108 extern uint64_t gHotSpotVMStructEntryFieldNameOffset;
 109 extern uint64_t gHotSpotVMStructEntryTypeStringOffset;
 110 extern uint64_t gHotSpotVMStructEntryIsStaticOffset;
 111 extern uint64_t gHotSpotVMStructEntryOffsetOffset;
 112 extern uint64_t gHotSpotVMStructEntryAddressOffset;
 113 extern uint64_t gHotSpotVMStructEntryArrayStride;
 114 
 115 extern VMTypeEntry* gHotSpotVMTypes;
 116 extern uint64_t gHotSpotVMTypeEntryTypeNameOffset;
 117 extern uint64_t gHotSpotVMTypeEntrySuperclassNameOffset;
 118 extern uint64_t gHotSpotVMTypeEntryIsOopTypeOffset;
 119 extern uint64_t gHotSpotVMTypeEntryIsIntegerTypeOffset;
 120 extern uint64_t gHotSpotVMTypeEntryIsUnsignedOffset;
 121 extern uint64_t gHotSpotVMTypeEntrySizeOffset;
 122 extern uint64_t gHotSpotVMTypeEntryArrayStride;
 123 
 124 extern VMIntConstantEntry* gHotSpotVMIntConstants;
 125 extern uint64_t gHotSpotVMIntConstantEntryNameOffset;
 126 extern uint64_t gHotSpotVMIntConstantEntryValueOffset;
 127 extern uint64_t gHotSpotVMIntConstantEntryArrayStride;
 128 
 129 extern VMLongConstantEntry* gHotSpotVMLongConstants;
 130 extern uint64_t gHotSpotVMLongConstantEntryNameOffset;
 131 extern uint64_t gHotSpotVMLongConstantEntryValueOffset;
 132 extern uint64_t gHotSpotVMLongConstantEntryArrayStride;
 133 
 134 extern VMAddressEntry* gHotSpotVMAddresses;
 135 extern uint64_t gHotSpotVMAddressEntryNameOffset;
 136 extern uint64_t gHotSpotVMAddressEntryValueOffset;
 137 extern uint64_t gHotSpotVMAddressEntryArrayStride;
 138 }
 139 
 140 // FIXME This is only temporary until the GC code is changed.
 141 bool       CompilerToVM::_supports_inline_contig_alloc;
 142 HeapWord** CompilerToVM::_heap_end_addr;
 143 HeapWord** CompilerToVM::_heap_top_addr;
 144 
 145 /**
 146  * We put all gHotSpotVM values in an array so we can read them easily from Java.
 147  */
 148 static uintptr_t ciHotSpotVMData[28];
 149 
 150 C2V_VMENTRY(jlong, initializeConfiguration, (JNIEnv *env, jobject))
 151   ciHotSpotVMData[0] = (uintptr_t) gHotSpotVMStructs;
 152   ciHotSpotVMData[1] = gHotSpotVMStructEntryTypeNameOffset;
 153   ciHotSpotVMData[2] = gHotSpotVMStructEntryFieldNameOffset;
 154   ciHotSpotVMData[3] = gHotSpotVMStructEntryTypeStringOffset;
 155   ciHotSpotVMData[4] = gHotSpotVMStructEntryIsStaticOffset;
 156   ciHotSpotVMData[5] = gHotSpotVMStructEntryOffsetOffset;
 157   ciHotSpotVMData[6] = gHotSpotVMStructEntryAddressOffset;
 158   ciHotSpotVMData[7] = gHotSpotVMStructEntryArrayStride;
 159 
 160   ciHotSpotVMData[8] = (uintptr_t) gHotSpotVMTypes;
 161   ciHotSpotVMData[9] = gHotSpotVMTypeEntryTypeNameOffset;
 162   ciHotSpotVMData[10] = gHotSpotVMTypeEntrySuperclassNameOffset;
 163   ciHotSpotVMData[11] = gHotSpotVMTypeEntryIsOopTypeOffset;
 164   ciHotSpotVMData[12] = gHotSpotVMTypeEntryIsIntegerTypeOffset;
 165   ciHotSpotVMData[13] = gHotSpotVMTypeEntryIsUnsignedOffset;
 166   ciHotSpotVMData[14] = gHotSpotVMTypeEntrySizeOffset;
 167   ciHotSpotVMData[15] = gHotSpotVMTypeEntryArrayStride;
 168 
 169   ciHotSpotVMData[16] = (uintptr_t) gHotSpotVMIntConstants;
 170   ciHotSpotVMData[17] = gHotSpotVMIntConstantEntryNameOffset;
 171   ciHotSpotVMData[18] = gHotSpotVMIntConstantEntryValueOffset;
 172   ciHotSpotVMData[19] = gHotSpotVMIntConstantEntryArrayStride;
 173 
 174   ciHotSpotVMData[20] = (uintptr_t) gHotSpotVMLongConstants;
 175   ciHotSpotVMData[21] = gHotSpotVMLongConstantEntryNameOffset;
 176   ciHotSpotVMData[22] = gHotSpotVMLongConstantEntryValueOffset;
 177   ciHotSpotVMData[23] = gHotSpotVMLongConstantEntryArrayStride;
 178 
 179   ciHotSpotVMData[24] = (uintptr_t) gHotSpotVMAddresses;
 180   ciHotSpotVMData[25] = gHotSpotVMAddressEntryNameOffset;
 181   ciHotSpotVMData[26] = gHotSpotVMAddressEntryValueOffset;
 182   ciHotSpotVMData[27] = gHotSpotVMAddressEntryArrayStride;
 183 
 184   // FIXME This is only temporary until the GC code is changed.
 185   CompilerToVM::_supports_inline_contig_alloc = Universe::heap()->supports_inline_contig_alloc();
 186   CompilerToVM::_heap_end_addr = CompilerToVM::_supports_inline_contig_alloc ? Universe::heap()->end_addr() : (HeapWord**) -1;
 187   CompilerToVM::_heap_top_addr = CompilerToVM::_supports_inline_contig_alloc ? Universe::heap()->top_addr() : (HeapWord**) -1;
 188 
 189   return (jlong) (address) &ciHotSpotVMData;
 190 C2V_END
 191 
 192 C2V_VMENTRY(jbyteArray, getBytecode, (JNIEnv *, jobject, jobject jvmci_method))
 193   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 194   ResourceMark rm;
 195 
 196   int code_size = method->code_size();
 197   typeArrayOop reconstituted_code = oopFactory::new_byteArray(code_size, CHECK_NULL);
 198 
 199   guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
 200   // iterate over all bytecodes and replace non-Java bytecodes
 201 
 202   for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
 203     Bytecodes::Code code = s.code();
 204     Bytecodes::Code raw_code = s.raw_code();
 205     int bci = s.bci();
 206     int len = s.instruction_size();
 207 
 208     // Restore original byte code.
 209     reconstituted_code->byte_at_put(bci, (jbyte) (s.is_wide()? Bytecodes::_wide : code));
 210     if (len > 1) {
 211       memcpy(reconstituted_code->byte_at_addr(bci + 1), s.bcp()+1, len-1);
 212     }
 213 
 214     if (len > 1) {
 215       // Restore the big-endian constant pool indexes.
 216       // Cf. Rewriter::scan_method
 217       switch (code) {
 218         case Bytecodes::_getstatic:
 219         case Bytecodes::_putstatic:
 220         case Bytecodes::_getfield:
 221         case Bytecodes::_putfield:
 222         case Bytecodes::_invokevirtual:
 223         case Bytecodes::_invokespecial:
 224         case Bytecodes::_invokestatic:
 225         case Bytecodes::_invokeinterface:
 226         case Bytecodes::_invokehandle: {
 227           int cp_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
 228           Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
 229           break;
 230         }
 231 
 232         case Bytecodes::_invokedynamic:
 233           int cp_index = Bytes::get_native_u4((address) reconstituted_code->byte_at_addr(bci + 1));
 234           Bytes::put_Java_u4((address) reconstituted_code->byte_at_addr(bci + 1), (u4) cp_index);
 235           break;
 236       }
 237 
 238       // Not all ldc byte code are rewritten.
 239       switch (raw_code) {
 240         case Bytecodes::_fast_aldc: {
 241           int cpc_index = reconstituted_code->byte_at(bci + 1) & 0xff;
 242           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 243           assert(cp_index < method->constants()->length(), "sanity check");
 244           reconstituted_code->byte_at_put(bci + 1, (jbyte) cp_index);
 245           break;
 246         }
 247 
 248         case Bytecodes::_fast_aldc_w: {
 249           int cpc_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
 250           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 251           assert(cp_index < method->constants()->length(), "sanity check");
 252           Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
 253           break;
 254         }
 255       }
 256     }
 257   }
 258 
 259   return (jbyteArray) JNIHandles::make_local(THREAD, reconstituted_code);
 260 C2V_END
 261 
 262 C2V_VMENTRY(jint, getExceptionTableLength, (JNIEnv *, jobject, jobject jvmci_method))
 263   ResourceMark rm;
 264   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 265   return method->exception_table_length();
 266 C2V_END
 267 
 268 C2V_VMENTRY(jlong, getExceptionTableStart, (JNIEnv *, jobject, jobject jvmci_method))
 269   ResourceMark rm;
 270   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 271   if (method->exception_table_length() == 0) {
 272     return 0L;
 273   }
 274   return (jlong) (address) method->exception_table_start();
 275 C2V_END
 276 
 277 C2V_VMENTRY(jobject, getResolvedJavaMethodAtSlot, (JNIEnv *, jobject, jclass holder_handle, jint slot))
 278   oop java_class = JNIHandles::resolve(holder_handle);
 279   Klass* holder = java_lang_Class::as_Klass(java_class);
 280   methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
 281   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 282   return JNIHandles::make_local(THREAD, result);
 283 }
 284 
 285 C2V_VMENTRY(jobject, getResolvedJavaMethod, (JNIEnv *, jobject, jobject base, jlong offset))
 286   methodHandle method;
 287   oop base_object = JNIHandles::resolve(base);
 288   if (base_object == NULL) {
 289     method = *((Method**)(offset));
 290   } else if (base_object->is_a(SystemDictionary::MemberName_klass())) {
 291     method = (Method*) (intptr_t) base_object->long_field(offset);
 292   } else if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 293     method = *((Method**)(HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object) + offset));
 294   } else {
 295     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 296                 err_msg("Unexpected type: %s", base_object->klass()->external_name()));
 297   }
 298   assert (method.is_null() || method->is_method(), "invalid read");
 299   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 300   return JNIHandles::make_local(THREAD, result);
 301 }
 302 
 303 C2V_VMENTRY(jobject, getConstantPool, (JNIEnv *, jobject, jobject base, jlong offset))
 304   constantPoolHandle cp;
 305   oop base_object = JNIHandles::resolve(base);
 306   jlong base_address = 0;
 307   if (base_object != NULL) {
 308     if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 309       base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
 310     } else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
 311       base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
 312     } else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
 313       base_address = (jlong) CompilerToVM::asKlass(base_object);
 314     } else {
 315       THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 316                   err_msg("Unexpected type: %s", base_object->klass()->external_name()));
 317     }
 318   }
 319   cp = *((ConstantPool**) (intptr_t) (base_address + offset));
 320   if (!cp.is_null()) {
 321     JavaValue method_result(T_OBJECT);
 322     JavaCallArguments args;
 323     args.push_long((jlong) (address) cp());
 324     JavaCalls::call_static(&method_result, SystemDictionary::HotSpotConstantPool_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::constantPool_fromMetaspace_signature(), &args, CHECK_NULL);
 325     return JNIHandles::make_local(THREAD, (oop)method_result.get_jobject());
 326   }
 327   return NULL;
 328 }
 329 
 330 C2V_VMENTRY(jobject, getResolvedJavaType, (JNIEnv *, jobject, jobject base, jlong offset, jboolean compressed))
 331   KlassHandle klass;
 332   oop base_object = JNIHandles::resolve(base);
 333   jlong base_address = 0;
 334   if (base_object != NULL && offset == oopDesc::klass_offset_in_bytes()) {
 335     klass = base_object->klass();
 336   } else if (!compressed) {
 337     if (base_object != NULL) {
 338       if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 339         base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
 340       } else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
 341         base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
 342       } else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
 343         base_address = (jlong) CompilerToVM::asKlass(base_object);
 344       } else if (base_object->is_a(SystemDictionary::Class_klass())) {
 345         base_address = (jlong) (address) base_object;
 346       } else {
 347         THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 348                     err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
 349       }
 350     }
 351     klass = *((Klass**) (intptr_t) (base_address + offset));
 352   } else {
 353     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 354                 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
 355   }
 356   assert (klass.is_null() || klass->is_klass(), "invalid read");
 357   oop result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
 358   return JNIHandles::make_local(THREAD, result);
 359 }
 360 
 361 C2V_VMENTRY(jobject, findUniqueConcreteMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
 362   ResourceMark rm;
 363   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 364   KlassHandle holder = CompilerToVM::asKlass(jvmci_type);
 365   if (holder->is_interface()) {
 366     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", holder->external_name()));
 367   }
 368 
 369   methodHandle ucm;
 370   {
 371     MutexLocker locker(Compile_lock);
 372     ucm = Dependencies::find_unique_concrete_method(holder(), method());
 373   }
 374   oop result = CompilerToVM::get_jvmci_method(ucm, CHECK_NULL);
 375   return JNIHandles::make_local(THREAD, result);
 376 C2V_END
 377 
 378 C2V_VMENTRY(jobject, getImplementor, (JNIEnv *, jobject, jobject jvmci_type))
 379   InstanceKlass* klass = (InstanceKlass*) CompilerToVM::asKlass(jvmci_type);
 380   oop implementor = CompilerToVM::get_jvmci_type(klass->implementor(), CHECK_NULL);
 381   return JNIHandles::make_local(THREAD, implementor);
 382 C2V_END
 383 
 384 C2V_VMENTRY(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv *, jobject, jobject jvmci_method))
 385   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 386   return method->is_ignored_by_security_stack_walk();
 387 C2V_END
 388 
 389 C2V_VMENTRY(jboolean, canInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
 390   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 391   return !method->is_not_compilable() && !CompilerOracle::should_not_inline(method) && !method->dont_inline();
 392 C2V_END
 393 
 394 C2V_VMENTRY(jboolean, shouldInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
 395   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 396   return CompilerOracle::should_inline(method) || method->force_inline();
 397 C2V_END
 398 
 399 C2V_VMENTRY(jobject, lookupType, (JNIEnv*, jobject, jstring jname, jclass accessing_class, jboolean resolve))
 400   ResourceMark rm;
 401   Handle name = JNIHandles::resolve(jname);
 402   Symbol* class_name = java_lang_String::as_symbol(name, CHECK_0);
 403   if (java_lang_String::length(name()) <= 1) {
 404     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
 405   }
 406 
 407   Klass* resolved_klass = NULL;
 408   Handle class_loader;
 409   Handle protection_domain;
 410   if (JNIHandles::resolve(accessing_class) == NULL) {
 411     THROW_0(vmSymbols::java_lang_NullPointerException());
 412   }
 413   Klass* accessing_klass = java_lang_Class::as_Klass(JNIHandles::resolve(accessing_class));
 414   class_loader = accessing_klass->class_loader();
 415   protection_domain = accessing_klass->protection_domain();
 416 
 417   if (resolve) {
 418     resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
 419   } else {
 420     if (class_name->byte_at(0) == 'L' &&
 421       class_name->byte_at(class_name->utf8_length()-1) == ';') {
 422       // This is a name from a signature.  Strip off the trimmings.
 423       // Call recursive to keep scope of strippedsym.
 424       TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
 425                                                           class_name->utf8_length()-2,
 426                                                           CHECK_0);
 427       resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
 428     } else if (FieldType::is_array(class_name)) {
 429       FieldArrayInfo fd;
 430       // dimension and object_key in FieldArrayInfo are assigned as a side-effect
 431       // of this call
 432       BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
 433       if (t == T_OBJECT) {
 434         TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
 435                                                             class_name->utf8_length()-2-fd.dimension(),
 436                                                             CHECK_0);
 437         // naked oop "k" is OK here -- we assign back into it
 438         resolved_klass = SystemDictionary::find(strippedsym,
 439                                                              class_loader,
 440                                                              protection_domain,
 441                                                              CHECK_0);
 442         if (resolved_klass != NULL) {
 443           resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
 444         }
 445       } else {
 446         resolved_klass = Universe::typeArrayKlassObj(t);
 447         resolved_klass = TypeArrayKlass::cast(resolved_klass)->array_klass(fd.dimension(), CHECK_0);
 448       }
 449     }
 450   }
 451   Handle result = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
 452   return JNIHandles::make_local(THREAD, result());
 453 C2V_END
 454 
 455 C2V_VMENTRY(jobject, resolveConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 456   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 457   oop result = cp->resolve_constant_at(index, CHECK_NULL);
 458   return JNIHandles::make_local(THREAD, result);
 459 C2V_END
 460 
 461 C2V_VMENTRY(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 462   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 463   oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
 464   return JNIHandles::make_local(THREAD, result);
 465 C2V_END
 466 
 467 C2V_VMENTRY(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 468   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 469   return cp->name_and_type_ref_index_at(index);
 470 C2V_END
 471 
 472 C2V_VMENTRY(jobject, lookupNameInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
 473   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 474   Handle sym = java_lang_String::create_from_symbol(cp->name_ref_at(which), CHECK_NULL);
 475   return JNIHandles::make_local(THREAD, sym());
 476 C2V_END
 477 
 478 C2V_VMENTRY(jobject, lookupSignatureInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
 479   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 480   Handle sym = java_lang_String::create_from_symbol(cp->signature_ref_at(which), CHECK_NULL);
 481   return JNIHandles::make_local(THREAD, sym());
 482 C2V_END
 483 
 484 C2V_VMENTRY(jint, lookupKlassRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 485   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 486   return cp->klass_ref_index_at(index);
 487 C2V_END
 488 
 489 C2V_VMENTRY(jobject, resolveTypeInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 490   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 491   Klass* resolved_klass = cp->klass_at(index, CHECK_NULL);
 492   Handle klass = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
 493   return JNIHandles::make_local(THREAD, klass());
 494 C2V_END
 495 
 496 C2V_VMENTRY(jobject, lookupKlassInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 497   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 498   KlassHandle loading_klass(cp->pool_holder());
 499   bool is_accessible = false;
 500   KlassHandle klass = JVMCIEnv::get_klass_by_index(cp, index, is_accessible, loading_klass);
 501   Symbol* symbol = NULL;
 502   if (klass.is_null()) {
 503     symbol = cp->klass_name_at(index);
 504   }
 505   Handle result;
 506   if (!klass.is_null()) {
 507     result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
 508   } else {
 509     result = java_lang_String::create_from_symbol(symbol, CHECK_NULL);
 510   }
 511   return JNIHandles::make_local(THREAD, result());
 512 C2V_END
 513 
 514 C2V_VMENTRY(jobject, lookupAppendixInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 515   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 516   oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
 517   return JNIHandles::make_local(THREAD, appendix_oop);
 518 C2V_END
 519 
 520 C2V_VMENTRY(jobject, lookupMethodInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 521   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 522   instanceKlassHandle pool_holder(cp->pool_holder());
 523   Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
 524   methodHandle method = JVMCIEnv::get_method_by_index(cp, index, bc, pool_holder);
 525   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 526   return JNIHandles::make_local(THREAD, result);
 527 C2V_END
 528 
 529 C2V_VMENTRY(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 530   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 531   return cp->remap_instruction_operand_from_cache(index);
 532 C2V_END
 533 
 534 C2V_VMENTRY(jobject, resolveFieldInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode, jlongArray info_handle))
 535   ResourceMark rm;
 536   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 537   Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
 538   fieldDescriptor fd;
 539   LinkInfo link_info(cp, index, CHECK_0);
 540   LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
 541   typeArrayOop info = (typeArrayOop) JNIHandles::resolve(info_handle);
 542   assert(info != NULL && info->length() == 2, "must be");
 543   info->long_at_put(0, (jlong) fd.access_flags().as_int());
 544   info->long_at_put(1, (jlong) fd.offset());
 545   oop field_holder = CompilerToVM::get_jvmci_type(fd.field_holder(), CHECK_NULL);
 546   return JNIHandles::make_local(THREAD, field_holder);
 547 C2V_END
 548 
 549 C2V_VMENTRY(jint, getVtableIndexForInterfaceMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
 550   ResourceMark rm;
 551   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 552   Method* method = CompilerToVM::asMethod(jvmci_method);
 553   if (klass->is_interface()) {
 554     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", klass->external_name()));
 555   }
 556   if (!method->method_holder()->is_interface()) {
 557     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()));
 558   }
 559   if (!InstanceKlass::cast(klass)->is_linked()) {
 560     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
 561   }
 562   return LinkResolver::vtable_index_of_interface_method(klass, method);
 563 C2V_END
 564 
 565 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
 566   Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
 567   Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
 568   Method* method = CompilerToVM::asMethod(jvmci_method);
 569 
 570   if (recv_klass->is_array_klass() || (InstanceKlass::cast(recv_klass)->is_linked())) {
 571     Klass* holder_klass = method->method_holder();
 572     Symbol* method_name = method->name();
 573     Symbol* method_signature = method->signature();
 574 
 575     if (holder_klass->is_interface()) {
 576       // do link-time resolution to check all access rules.
 577       LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
 578       methodHandle resolved_method = LinkResolver::linktime_resolve_interface_method_or_null(link_info);
 579       if (resolved_method.is_null() || resolved_method->is_private()) {
 580         return NULL;
 581       }
 582       assert(recv_klass->is_subtype_of(holder_klass), "");
 583       // do actual lookup
 584       methodHandle sel_method = LinkResolver::lookup_instance_method_in_klasses(recv_klass, resolved_method->name(), resolved_method->signature(), CHECK_AND_CLEAR_0);
 585       oop result = CompilerToVM::get_jvmci_method(sel_method, CHECK_NULL);
 586       return JNIHandles::make_local(THREAD, result);
 587     } else {
 588       // do link-time resolution to check all access rules.
 589       LinkInfo link_info(holder_klass, method_name, method_signature, caller_klass, true);
 590       methodHandle resolved_method = LinkResolver::linktime_resolve_virtual_method_or_null(link_info);
 591       if (resolved_method.is_null()) {
 592         return NULL;
 593       }
 594       // do actual lookup (see LinkResolver::runtime_resolve_virtual_method)
 595       int vtable_index = Method::invalid_vtable_index;
 596       Method* selected_method;
 597 
 598       if (resolved_method->method_holder()->is_interface()) { // miranda method
 599         vtable_index = LinkResolver::vtable_index_of_interface_method(holder_klass, resolved_method);
 600         assert(vtable_index >= 0 , "we should have valid vtable index at this point");
 601 
 602         InstanceKlass* inst = InstanceKlass::cast(recv_klass);
 603         selected_method = inst->method_at_vtable(vtable_index);
 604       } else {
 605         // at this point we are sure that resolved_method is virtual and not
 606         // a miranda method; therefore, it must have a valid vtable index.
 607         assert(!resolved_method->has_itable_index(), "");
 608         vtable_index = resolved_method->vtable_index();
 609         // We could get a negative vtable_index for final methods,
 610         // because as an optimization they are they are never put in the vtable,
 611         // unless they override an existing method.
 612         // If we do get a negative, it means the resolved method is the the selected
 613         // method, and it can never be changed by an override.
 614         if (vtable_index == Method::nonvirtual_vtable_index) {
 615           assert(resolved_method->can_be_statically_bound(), "cannot override this method");
 616           selected_method = resolved_method();
 617         } else {
 618           // recv_klass might be an arrayKlassOop but all vtables start at
 619           // the same place. The cast is to avoid virtual call and assertion.
 620           InstanceKlass* inst = (InstanceKlass*)recv_klass;
 621           selected_method = inst->method_at_vtable(vtable_index);
 622         }
 623       }
 624       oop result = CompilerToVM::get_jvmci_method(selected_method, CHECK_NULL);
 625       return JNIHandles::make_local(THREAD, result);
 626     }
 627   }
 628   return NULL;
 629 C2V_END
 630 
 631 C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type))
 632   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 633   assert(klass != NULL, "method must not be called for primitive types");
 634   return Dependencies::find_finalizable_subclass(klass) != NULL;
 635 C2V_END
 636 
 637 C2V_VMENTRY(jobject, getClassInitializer, (JNIEnv *, jobject, jobject jvmci_type))
 638   InstanceKlass* klass = (InstanceKlass*) CompilerToVM::asKlass(jvmci_type);
 639   oop result = CompilerToVM::get_jvmci_method(klass->class_initializer(), CHECK_NULL);
 640   return JNIHandles::make_local(THREAD, result);
 641 C2V_END
 642 
 643 C2V_VMENTRY(jlong, getMaxCallTargetOffset, (JNIEnv*, jobject, jlong addr))
 644   address target_addr = (address) addr;
 645   if (target_addr != 0x0) {
 646     int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
 647     int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
 648     return MAX2(ABS(off_low), ABS(off_high));
 649   }
 650   return -1;
 651 C2V_END
 652 
 653 C2V_VMENTRY(void, doNotInlineOrCompile,(JNIEnv *, jobject,  jobject jvmci_method))
 654   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 655   method->set_not_c1_compilable();
 656   method->set_not_c2_compilable();
 657   method->set_dont_inline(true);
 658 C2V_END
 659 
 660 C2V_VMENTRY(jint, installCode, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject installed_code, jobject speculation_log))
 661   ResourceMark rm;
 662   HandleMark hm;
 663   Handle target_handle = JNIHandles::resolve(target);
 664   Handle compiled_code_handle = JNIHandles::resolve(compiled_code);
 665   CodeBlob* cb = NULL;
 666   Handle installed_code_handle = JNIHandles::resolve(installed_code);
 667   Handle speculation_log_handle = JNIHandles::resolve(speculation_log);
 668 
 669   JVMCICompiler* compiler = JVMCICompiler::instance(CHECK_JNI_ERR);
 670 
 671   TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
 672   CodeInstaller installer;
 673   JVMCIEnv::CodeInstallResult result = installer.install(compiler, target_handle, compiled_code_handle, cb, installed_code_handle, speculation_log_handle, CHECK_0);
 674 
 675   if (PrintCodeCacheOnCompilation) {
 676     stringStream s;
 677     // Dump code cache  into a buffer before locking the tty,
 678     {
 679       MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
 680       CodeCache::print_summary(&s, false);
 681     }
 682     ttyLocker ttyl;
 683     tty->print_raw_cr(s.as_string());
 684   }
 685 
 686   if (result != JVMCIEnv::ok) {
 687     assert(cb == NULL, "should be");
 688   } else {
 689     if (!installed_code_handle.is_null()) {
 690       assert(installed_code_handle->is_a(InstalledCode::klass()), "wrong type");
 691       CompilerToVM::invalidate_installed_code(installed_code_handle, CHECK_0);
 692       InstalledCode::set_address(installed_code_handle, (jlong) cb);
 693       InstalledCode::set_version(installed_code_handle, InstalledCode::version(installed_code_handle) + 1);
 694       if (cb->is_nmethod()) {
 695         InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->as_nmethod_or_null()->verified_entry_point());
 696       } else {
 697         InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->code_begin());
 698       }
 699       if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
 700         HotSpotInstalledCode::set_size(installed_code_handle, cb->size());
 701         HotSpotInstalledCode::set_codeStart(installed_code_handle, (jlong) cb->code_begin());
 702         HotSpotInstalledCode::set_codeSize(installed_code_handle, cb->code_size());
 703       }
 704       nmethod* nm = cb->as_nmethod_or_null();
 705       if (nm != NULL && installed_code_handle->is_scavengable()) {
 706         assert(nm->detect_scavenge_root_oops(), "nm should be scavengable if installed_code is scavengable");
 707         if (!UseG1GC) {
 708           assert(nm->on_scavenge_root_list(), "nm should be on scavengable list");
 709         }
 710       }
 711     }
 712   }
 713   return result;
 714 C2V_END
 715 
 716 C2V_VMENTRY(jint, getMetadata, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject metadata))
 717   ResourceMark rm;
 718   HandleMark hm;
 719 
 720   Handle target_handle = JNIHandles::resolve(target);
 721   Handle compiled_code_handle = JNIHandles::resolve(compiled_code);
 722   Handle metadata_handle = JNIHandles::resolve(metadata);
 723 
 724   HotSpotOopMap::klass()->initialize(thread);
 725 
 726   CodeMetadata code_metadata;
 727   CodeBlob *cb = NULL;
 728   CodeInstaller installer;
 729 
 730   JVMCIEnv::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, CHECK_0); //cb, pc_descs, nr_pc_descs, scopes_descs, scopes_size, reloc_buffer);
 731   if (result != JVMCIEnv::ok) {
 732     return result;
 733   }
 734 
 735   if (code_metadata.get_nr_pc_desc() > 0) {
 736     typeArrayHandle pcArrayOop = oopFactory::new_byteArray(sizeof(PcDesc) * code_metadata.get_nr_pc_desc(), CHECK_(JVMCIEnv::cache_full));
 737     memcpy(pcArrayOop->byte_at_addr(0), code_metadata.get_pc_desc(), sizeof(PcDesc) * code_metadata.get_nr_pc_desc());
 738     HotSpotMetaData::set_pcDescBytes(metadata_handle, pcArrayOop());
 739   }
 740 
 741   if (code_metadata.get_scopes_size() > 0) {
 742     typeArrayHandle scopesArrayOop = oopFactory::new_byteArray(code_metadata.get_scopes_size(), CHECK_(JVMCIEnv::cache_full));
 743     memcpy(scopesArrayOop->byte_at_addr(0), code_metadata.get_scopes_desc(), code_metadata.get_scopes_size());
 744     HotSpotMetaData::set_scopesDescBytes(metadata_handle, scopesArrayOop());
 745   }
 746 
 747   RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
 748   typeArrayHandle relocArrayOop = oopFactory::new_byteArray((int) reloc_buffer->size(), CHECK_(JVMCIEnv::cache_full));
 749   if (reloc_buffer->size() > 0) {
 750     memcpy(relocArrayOop->byte_at_addr(0), reloc_buffer->begin(), reloc_buffer->size());
 751   }
 752   HotSpotMetaData::set_relocBytes(metadata_handle, relocArrayOop());
 753 
 754   const OopMapSet* oopMapSet = installer.oopMapSet();
 755   {
 756     ResourceMark mark;
 757     ImmutableOopMapBuilder builder(oopMapSet);
 758     int oopmap_size = builder.heap_size();
 759     typeArrayHandle oopMapArrayHandle = oopFactory::new_byteArray(oopmap_size, CHECK_(JVMCIEnv::cache_full));
 760     builder.generate_into((address) oopMapArrayHandle->byte_at_addr(0));
 761     HotSpotMetaData::set_oopMaps(metadata_handle, oopMapArrayHandle());
 762   }
 763 
 764   HotSpotMetaData::set_metadata(metadata_handle, NULL);
 765 
 766   ExceptionHandlerTable* handler = code_metadata.get_exception_table();
 767   int table_size = handler->size_in_bytes();
 768   typeArrayHandle exceptionArrayOop = oopFactory::new_byteArray(table_size, CHECK_(JVMCIEnv::cache_full));
 769 
 770   if (table_size > 0) {
 771     handler->copy_bytes_to((address) exceptionArrayOop->byte_at_addr(0));
 772   }
 773   HotSpotMetaData::set_exceptionBytes(metadata_handle, exceptionArrayOop());
 774 
 775   return result;
 776 C2V_END
 777 
 778 C2V_VMENTRY(void, notifyCompilationStatistics, (JNIEnv *jniEnv, jobject, jint id, jobject hotspot_method, jboolean osr, jint processedBytecodes, jlong time, jlong timeUnitsPerSecond, jobject installed_code))
 779   JVMCICompiler* compiler = JVMCICompiler::instance(CHECK);
 780   CompilerStatistics* stats = compiler->stats();
 781 
 782   elapsedTimer timer = elapsedTimer(time, timeUnitsPerSecond);
 783   if (osr) {
 784     stats->_osr.update(timer, processedBytecodes);
 785   } else {
 786     stats->_standard.update(timer, processedBytecodes);
 787   }
 788   Handle installed_code_handle = JNIHandles::resolve(installed_code);
 789   if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
 790     stats->_nmethods_size += HotSpotInstalledCode::size(installed_code_handle);
 791     stats->_nmethods_code_size += HotSpotInstalledCode::codeSize(installed_code_handle);
 792   }
 793 
 794   if (CITimeEach) {
 795     methodHandle method = CompilerToVM::asMethod(hotspot_method);
 796     float bytes_per_sec = 1.0 * processedBytecodes / timer.seconds();
 797     tty->print_cr("%3d   seconds: %f bytes/sec: %f (bytes %d)",
 798                   id, timer.seconds(), bytes_per_sec, processedBytecodes);
 799   }
 800 C2V_END
 801 
 802 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv *jniEnv, jobject))
 803   JVMCICompiler* compiler = JVMCICompiler::instance(CHECK);
 804   CompilerStatistics* stats = compiler->stats();
 805   stats->_standard.reset();
 806   stats->_osr.reset();
 807 C2V_END
 808 
 809 C2V_VMENTRY(jobject, disassembleCodeBlob, (JNIEnv *jniEnv, jobject, jobject installedCode))
 810   ResourceMark rm;
 811   HandleMark hm;
 812 
 813   if (installedCode == NULL) {
 814     THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), "installedCode is null");
 815   }
 816 
 817   jlong codeBlob = InstalledCode::address(installedCode);
 818   if (codeBlob == 0L) {
 819     return NULL;
 820   }
 821 
 822   CodeBlob* cb = (CodeBlob*) (address) codeBlob;
 823   if (cb == NULL) {
 824     return NULL;
 825   }
 826 
 827   // We don't want the stringStream buffer to resize during disassembly as it
 828   // uses scoped resource memory. If a nested function called during disassembly uses
 829   // a ResourceMark and the buffer expands within the scope of the mark,
 830   // the buffer becomes garbage when that scope is exited. Experience shows that
 831   // the disassembled code is typically about 10x the code size so a fixed buffer
 832   // sized to 20x code size plus a fixed amount for header info should be sufficient.
 833   int bufferSize = cb->code_size() * 20 + 1024;
 834   char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
 835   stringStream st(buffer, bufferSize);
 836   if (cb->is_nmethod()) {
 837     nmethod* nm = (nmethod*) cb;
 838     if (!nm->is_alive()) {
 839       return NULL;
 840     }
 841     Disassembler::decode(nm, &st);
 842   } else {
 843     Disassembler::decode(cb, &st);
 844   }
 845   if (st.size() <= 0) {
 846     return NULL;
 847   }
 848 
 849   Handle result = java_lang_String::create_from_platform_dependent_str(st.as_string(), CHECK_NULL);
 850   return JNIHandles::make_local(THREAD, result());
 851 C2V_END
 852 
 853 C2V_VMENTRY(jobject, getStackTraceElement, (JNIEnv*, jobject, jobject jvmci_method, int bci))
 854   ResourceMark rm;
 855   HandleMark hm;
 856 
 857   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 858   oop element = java_lang_StackTraceElement::create(method, bci, CHECK_NULL);
 859   return JNIHandles::make_local(THREAD, element);
 860 C2V_END
 861 
 862 C2V_VMENTRY(jobject, executeInstalledCode, (JNIEnv*, jobject, jobject args, jobject hotspotInstalledCode))
 863   ResourceMark rm;
 864   HandleMark hm;
 865 
 866   jlong nmethodValue = InstalledCode::address(hotspotInstalledCode);
 867   if (nmethodValue == 0L) {
 868     THROW_NULL(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException());
 869   }
 870   nmethod* nm = (nmethod*) (address) nmethodValue;
 871   methodHandle mh = nm->method();
 872   Symbol* signature = mh->signature();
 873   JavaCallArguments jca(mh->size_of_parameters());
 874 
 875   JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
 876   JavaValue result(jap.get_ret_type());
 877   jca.set_alternative_target(nm);
 878   JavaCalls::call(&result, mh, &jca, CHECK_NULL);
 879 
 880   if (jap.get_ret_type() == T_VOID) {
 881     return NULL;
 882   } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
 883     return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
 884   } else {
 885     jvalue *value = (jvalue *) result.get_value_addr();
 886     // Narrow the value down if required (Important on big endian machines)
 887     switch (jap.get_ret_type()) {
 888       case T_BOOLEAN:
 889        value->z = (jboolean) value->i;
 890        break;
 891       case T_BYTE:
 892        value->b = (jbyte) value->i;
 893        break;
 894       case T_CHAR:
 895        value->c = (jchar) value->i;
 896        break;
 897       case T_SHORT:
 898        value->s = (jshort) value->i;
 899        break;
 900      }
 901     oop o = java_lang_boxing_object::create(jap.get_ret_type(), value, CHECK_NULL);
 902     return JNIHandles::make_local(THREAD, o);
 903   }
 904 C2V_END
 905 
 906 C2V_VMENTRY(jlongArray, getLineNumberTable, (JNIEnv *, jobject, jobject jvmci_method))
 907   Method* method = CompilerToVM::asMethod(jvmci_method);
 908   if (!method->has_linenumber_table()) {
 909     return NULL;
 910   }
 911   u2 num_entries = 0;
 912   CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
 913   while (streamForSize.read_pair()) {
 914     num_entries++;
 915   }
 916 
 917   CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
 918   typeArrayOop result = oopFactory::new_longArray(2 * num_entries, CHECK_NULL);
 919 
 920   int i = 0;
 921   jlong value;
 922   while (stream.read_pair()) {
 923     value = ((long) stream.bci());
 924     result->long_at_put(i, value);
 925     value = ((long) stream.line());
 926     result->long_at_put(i + 1, value);
 927     i += 2;
 928   }
 929 
 930   return (jlongArray) JNIHandles::make_local(THREAD, result);
 931 C2V_END
 932 
 933 C2V_VMENTRY(jlong, getLocalVariableTableStart, (JNIEnv *, jobject, jobject jvmci_method))
 934   ResourceMark rm;
 935   Method* method = CompilerToVM::asMethod(jvmci_method);
 936   if (!method->has_localvariable_table()) {
 937     return 0;
 938   }
 939   return (jlong) (address) method->localvariable_table_start();
 940 C2V_END
 941 
 942 C2V_VMENTRY(jint, getLocalVariableTableLength, (JNIEnv *, jobject, jobject jvmci_method))
 943   ResourceMark rm;
 944   Method* method = CompilerToVM::asMethod(jvmci_method);
 945   return method->localvariable_table_length();
 946 C2V_END
 947 
 948 C2V_VMENTRY(void, reprofile, (JNIEnv*, jobject, jobject jvmci_method))
 949   Method* method = CompilerToVM::asMethod(jvmci_method);
 950   MethodCounters* mcs = method->method_counters();
 951   if (mcs != NULL) {
 952     mcs->clear_counters();
 953   }
 954   NOT_PRODUCT(method->set_compiled_invocation_count(0));
 955 
 956   nmethod* code = method->code();
 957   if (code != NULL) {
 958     code->make_not_entrant();
 959   }
 960 
 961   MethodData* method_data = method->method_data();
 962   if (method_data == NULL) {
 963     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
 964     method_data = MethodData::allocate(loader_data, method, CHECK);
 965     method->set_method_data(method_data);
 966   } else {
 967     method_data->initialize();
 968   }
 969 C2V_END
 970 
 971 
 972 C2V_VMENTRY(void, invalidateInstalledCode, (JNIEnv*, jobject, jobject installed_code))
 973   Handle installed_code_handle = JNIHandles::resolve(installed_code);
 974   CompilerToVM::invalidate_installed_code(installed_code_handle, CHECK);
 975 C2V_END
 976 
 977 C2V_VMENTRY(jobject, readUncompressedOop, (JNIEnv*, jobject, jlong addr))
 978   oop ret = oopDesc::load_decode_heap_oop((oop*)(address)addr);
 979   return JNIHandles::make_local(THREAD, ret);
 980 C2V_END
 981 
 982 C2V_VMENTRY(jlongArray, collectCounters, (JNIEnv*, jobject))
 983   typeArrayOop arrayOop = oopFactory::new_longArray(JVMCICounterSize, CHECK_NULL);
 984   JavaThread::collect_counters(arrayOop);
 985   return (jlongArray) JNIHandles::make_local(THREAD, arrayOop);
 986 C2V_END
 987 
 988 C2V_VMENTRY(int, allocateCompileId, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci))
 989   HandleMark hm;
 990   ResourceMark rm;
 991   if (JNIHandles::resolve(jvmci_method) == NULL) {
 992     THROW_0(vmSymbols::java_lang_NullPointerException());
 993   }
 994   Method* method = CompilerToVM::asMethod(jvmci_method);
 995   if (entry_bci >= method->code_size() || entry_bci < -1) {
 996     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Unexpected bci %d", entry_bci));
 997   }
 998   return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
 999 C2V_END
1000 
1001 
1002 C2V_VMENTRY(jboolean, isMature, (JNIEnv*, jobject, jlong metaspace_method_data))
1003   MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
1004   return mdo != NULL && mdo->is_mature();
1005 C2V_END
1006 
1007 C2V_VMENTRY(jboolean, hasCompiledCodeForOSR, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci, int comp_level))
1008   Method* method = CompilerToVM::asMethod(jvmci_method);
1009   return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
1010 C2V_END
1011 
1012 C2V_VMENTRY(jobject, getSymbol, (JNIEnv*, jobject, jlong symbol))
1013   Handle sym = java_lang_String::create_from_symbol((Symbol*)(address)symbol, CHECK_NULL);
1014   return JNIHandles::make_local(THREAD, sym());
1015 C2V_END
1016 
1017 bool matches(jobjectArray methods, Method* method) {
1018   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
1019 
1020   for (int i = 0; i < methods_oop->length(); i++) {
1021     oop resolved = methods_oop->obj_at(i);
1022     if (resolved->is_a(HotSpotResolvedJavaMethodImpl::klass()) && CompilerToVM::asMethod(resolved) == method) {
1023       return true;
1024     }
1025   }
1026   return false;
1027 }
1028 
1029 C2V_VMENTRY(jobject, getNextStackFrame, (JNIEnv*, jobject compilerToVM, jobject hs_frame, jobjectArray methods, jint initialSkip))
1030   ResourceMark rm;
1031 
1032   if (!thread->has_last_Java_frame()) return NULL;
1033   Handle result = HotSpotStackFrameReference::klass()->allocate_instance(thread);
1034   HotSpotStackFrameReference::klass()->initialize(thread);
1035 
1036   StackFrameStream fst(thread);
1037   if (hs_frame != NULL) {
1038     // look for the correct stack frame if one is given
1039     intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
1040     while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1041       fst.next();
1042     }
1043     if (fst.current()->sp() != stack_pointer) {
1044       THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
1045     }
1046   }
1047 
1048   int frame_number = 0;
1049   vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1050   if (hs_frame != NULL) {
1051     // look for the correct vframe within the stack frame if one is given
1052     int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
1053     while (frame_number < last_frame_number) {
1054       if (vf->is_top()) {
1055         THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
1056       }
1057       vf = vf->sender();
1058       frame_number ++;
1059     }
1060     // move one frame forward
1061     if (vf->is_top()) {
1062       if (fst.is_done()) {
1063         return NULL;
1064       }
1065       fst.next();
1066       vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1067       frame_number = 0;
1068     } else {
1069       vf = vf->sender();
1070       frame_number++;
1071     }
1072   }
1073 
1074   while (true) {
1075     // look for the given method
1076     while (true) {
1077       StackValueCollection* locals = NULL;
1078       if (vf->is_compiled_frame()) {
1079         // compiled method frame
1080         compiledVFrame* cvf = compiledVFrame::cast(vf);
1081         if (methods == NULL || matches(methods, cvf->method())) {
1082           if (initialSkip > 0) {
1083             initialSkip --;
1084           } else {
1085             ScopeDesc* scope = cvf->scope();
1086             // native wrapper do not have a scope
1087             if (scope != NULL && scope->objects() != NULL) {
1088               bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), scope->objects(), THREAD);
1089               Deoptimization::reassign_fields(fst.current(), fst.register_map(), scope->objects(), realloc_failures, false);
1090 
1091               GrowableArray<ScopeValue*>* local_values = scope->locals();
1092               typeArrayHandle array = oopFactory::new_boolArray(local_values->length(), thread);
1093               for (int i = 0; i < local_values->length(); i++) {
1094                 ScopeValue* value = local_values->at(i);
1095                 if (value->is_object()) {
1096                   array->bool_at_put(i, true);
1097                 }
1098               }
1099               HotSpotStackFrameReference::set_localIsVirtual(result, array());
1100             } else {
1101               HotSpotStackFrameReference::set_localIsVirtual(result, NULL);
1102             }
1103 
1104             locals = cvf->locals();
1105             HotSpotStackFrameReference::set_bci(result, cvf->bci());
1106             oop method = CompilerToVM::get_jvmci_method(cvf->method(), CHECK_NULL);
1107             HotSpotStackFrameReference::set_method(result, method);
1108           }
1109         }
1110       } else if (vf->is_interpreted_frame()) {
1111         // interpreted method frame
1112         interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1113         if (methods == NULL || matches(methods, ivf->method())) {
1114           if (initialSkip > 0) {
1115             initialSkip --;
1116           } else {
1117             locals = ivf->locals();
1118             HotSpotStackFrameReference::set_bci(result, ivf->bci());
1119             oop method = CompilerToVM::get_jvmci_method(ivf->method(), CHECK_NULL);
1120             HotSpotStackFrameReference::set_method(result, method);
1121             HotSpotStackFrameReference::set_localIsVirtual(result, NULL);
1122           }
1123         }
1124       }
1125 
1126       // locals != NULL means that we found a matching frame and result is already partially initialized
1127       if (locals != NULL) {
1128         HotSpotStackFrameReference::set_compilerToVM(result, JNIHandles::resolve(compilerToVM));
1129         HotSpotStackFrameReference::set_stackPointer(result, (jlong) fst.current()->sp());
1130         HotSpotStackFrameReference::set_frameNumber(result, frame_number);
1131 
1132         // initialize the locals array
1133         objArrayHandle array = oopFactory::new_objectArray(locals->size(), thread);
1134         for (int i = 0; i < locals->size(); i++) {
1135           StackValue* var = locals->at(i);
1136           if (var->type() == T_OBJECT) {
1137             array->obj_at_put(i, locals->at(i)->get_obj()());
1138           }
1139         }
1140         HotSpotStackFrameReference::set_locals(result, array());
1141 
1142         return JNIHandles::make_local(thread, result());
1143       }
1144 
1145       if (vf->is_top()) {
1146         break;
1147       }
1148       frame_number++;
1149       vf = vf->sender();
1150     } // end of vframe loop
1151 
1152     if (fst.is_done()) {
1153       break;
1154     }
1155     fst.next();
1156     vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1157     frame_number = 0;
1158   } // end of frame loop
1159 
1160   // the end was reached without finding a matching method
1161   return NULL;
1162 C2V_END
1163 
1164 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1165   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1166   CallInfo callInfo;
1167   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1168   ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1169   cp_cache_entry->set_dynamic_call(cp, callInfo);
1170 C2V_END
1171 
1172 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1173   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1174   CallInfo callInfo;
1175   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1176   ConstantPoolCacheEntry* cp_cache_entry = cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1177   cp_cache_entry->set_method_handle(cp, callInfo);
1178 C2V_END
1179 
1180 C2V_VMENTRY(jboolean, shouldDebugNonSafepoints, (JNIEnv*, jobject))
1181   //see compute_recording_non_safepoints in debugInfroRec.cpp
1182   if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1183     return true;
1184   }
1185   return DebugNonSafepoints;
1186 C2V_END
1187 
1188 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1189 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv*, jobject, jobject hs_frame, bool invalidate))
1190   ResourceMark rm;
1191 
1192   if (hs_frame == NULL) {
1193     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "stack frame is null")
1194   }
1195 
1196   HotSpotStackFrameReference::klass()->initialize(thread);
1197 
1198   // look for the given stack frame
1199   StackFrameStream fst(thread);
1200   intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
1201   while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1202     fst.next();
1203   }
1204   if (fst.current()->sp() != stack_pointer) {
1205     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
1206   }
1207 
1208   if (invalidate) {
1209     if (!fst.current()->is_compiled_frame()) {
1210       THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1211     }
1212     assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1213     ((nmethod*) fst.current()->cb())->make_not_entrant();
1214   }
1215   Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1216   // look for the frame again as it has been updated by deopt (pc, deopt state...)
1217   StackFrameStream fstAfterDeopt(thread);
1218   while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1219     fstAfterDeopt.next();
1220   }
1221   if (fstAfterDeopt.current()->sp() != stack_pointer) {
1222     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1223   }
1224 
1225   vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1226   if (!vf->is_compiled_frame()) {
1227     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1228   }
1229 
1230   GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1231   while (true) {
1232     assert(vf->is_compiled_frame(), "Wrong frame type");
1233     virtualFrames->push(compiledVFrame::cast(vf));
1234     if (vf->is_top()) {
1235       break;
1236     }
1237     vf = vf->sender();
1238   }
1239 
1240   int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
1241   if (last_frame_number >= virtualFrames->length()) {
1242     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
1243   }
1244 
1245   // Reallocate the non-escaping objects and restore their fields.
1246   assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1247   GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1248 
1249   if (objects == NULL) {
1250     // no objects to materialize
1251     return;
1252   }
1253 
1254   bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), objects, THREAD);
1255   Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1256 
1257   for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1258     compiledVFrame* cvf = virtualFrames->at(frame_index);
1259 
1260     GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1261     StackValueCollection* locals = cvf->locals();
1262 
1263     if (locals != NULL) {
1264       for (int i2 = 0; i2 < locals->size(); i2++) {
1265         StackValue* var = locals->at(i2);
1266         if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1267           jvalue val;
1268           val.l = (jobject) locals->at(i2)->get_obj()();
1269           cvf->update_local(T_OBJECT, i2, val);
1270         }
1271       }
1272     }
1273   }
1274 
1275   // all locals are materialized by now
1276   HotSpotStackFrameReference::set_localIsVirtual(hs_frame, NULL);
1277 
1278   // update the locals array
1279   objArrayHandle array = HotSpotStackFrameReference::locals(hs_frame);
1280   StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1281   for (int i = 0; i < locals->size(); i++) {
1282     StackValue* var = locals->at(i);
1283     if (var->type() == T_OBJECT) {
1284       array->obj_at_put(i, locals->at(i)->get_obj()());
1285     }
1286   }
1287 C2V_END
1288 
1289 C2V_VMENTRY(void, writeDebugOutput, (JNIEnv*, jobject, jbyteArray bytes, jint offset, jint length))
1290   if (bytes == NULL) {
1291     THROW(vmSymbols::java_lang_NullPointerException());
1292   }
1293   typeArrayOop array = (typeArrayOop) JNIHandles::resolve(bytes);
1294 
1295   // Check if offset and length are non negative.
1296   if (offset < 0 || length < 0) {
1297     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1298   }
1299   // Check if the range is valid.
1300   if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array->length())) {
1301     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1302   }
1303   while (length > 0) {
1304     jbyte* start = array->byte_at_addr(offset);
1305     tty->write((char*) start, MIN2(length, O_BUFLEN));
1306     length -= O_BUFLEN;
1307     offset += O_BUFLEN;
1308   }
1309 C2V_END
1310 
1311 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv*, jobject))
1312   tty->flush();
1313 C2V_END
1314 
1315 C2V_VMENTRY(int, methodDataProfileDataSize, (JNIEnv*, jobject, jlong metaspace_method_data, jint position))
1316   ResourceMark rm;
1317   MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
1318   ProfileData* profile_data = mdo->data_at(position);
1319   if (mdo->is_valid(profile_data)) {
1320     return profile_data->size_in_bytes();
1321   }
1322   DataLayout* data    = mdo->extra_data_base();
1323   DataLayout* end   = mdo->extra_data_limit();
1324   for (;; data = mdo->next_extra(data)) {
1325     assert(data < end, "moved past end of extra data");
1326     profile_data = data->data_in();
1327     if (mdo->dp_to_di(profile_data->dp()) == position) {
1328       return profile_data->size_in_bytes();
1329     }
1330   }
1331   THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Invalid profile data position %d", position));
1332 C2V_END
1333 
1334 
1335 #define CC (char*)  /*cast a literal from (const char*)*/
1336 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
1337 
1338 #define STRING                "Ljava/lang/String;"
1339 #define OBJECT                "Ljava/lang/Object;"
1340 #define CLASS                 "Ljava/lang/Class;"
1341 #define STACK_TRACE_ELEMENT   "Ljava/lang/StackTraceElement;"
1342 #define INSTALLED_CODE        "Ljdk/vm/ci/code/InstalledCode;"
1343 #define TARGET_DESCRIPTION    "Ljdk/vm/ci/code/TargetDescription;"
1344 #define RESOLVED_METHOD       "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
1345 #define HS_RESOLVED_METHOD    "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
1346 #define HS_RESOLVED_KLASS     "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
1347 #define HS_CONSTANT_POOL      "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
1348 #define HS_COMPILED_CODE      "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
1349 #define HS_CONFIG             "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
1350 #define HS_METADATA           "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
1351 #define HS_STACK_FRAME_REF    "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
1352 #define HS_SPECULATION_LOG    "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
1353 #define METASPACE_METHOD_DATA "J"
1354 
1355 JNINativeMethod CompilerToVM::methods[] = {
1356   {CC"getBytecode",                                  CC"("HS_RESOLVED_METHOD")[B",                                                     FN_PTR(getBytecode)},
1357   {CC"getExceptionTableStart",                       CC"("HS_RESOLVED_METHOD")J",                                                      FN_PTR(getExceptionTableStart)},
1358   {CC"getExceptionTableLength",                      CC"("HS_RESOLVED_METHOD")I",                                                      FN_PTR(getExceptionTableLength)},
1359   {CC"findUniqueConcreteMethod",                     CC"("HS_RESOLVED_KLASS HS_RESOLVED_METHOD")"HS_RESOLVED_METHOD,                   FN_PTR(findUniqueConcreteMethod)},
1360   {CC"getImplementor",                               CC"("HS_RESOLVED_KLASS")"HS_RESOLVED_KLASS,                                       FN_PTR(getImplementor)},
1361   {CC"getStackTraceElement",                         CC"("HS_RESOLVED_METHOD"I)"STACK_TRACE_ELEMENT,                                   FN_PTR(getStackTraceElement)},
1362   {CC"methodIsIgnoredBySecurityStackWalk",           CC"("HS_RESOLVED_METHOD")Z",                                                      FN_PTR(methodIsIgnoredBySecurityStackWalk)},
1363   {CC"doNotInlineOrCompile",                         CC"("HS_RESOLVED_METHOD")V",                                                      FN_PTR(doNotInlineOrCompile)},
1364   {CC"canInlineMethod",                              CC"("HS_RESOLVED_METHOD")Z",                                                      FN_PTR(canInlineMethod)},
1365   {CC"shouldInlineMethod",                           CC"("HS_RESOLVED_METHOD")Z",                                                      FN_PTR(shouldInlineMethod)},
1366   {CC"lookupType",                                   CC"("STRING CLASS"Z)"HS_RESOLVED_KLASS,                                           FN_PTR(lookupType)},
1367   {CC"lookupNameInPool",                             CC"("HS_CONSTANT_POOL"I)"STRING,                                                  FN_PTR(lookupNameInPool)},
1368   {CC"lookupNameAndTypeRefIndexInPool",              CC"("HS_CONSTANT_POOL"I)I",                                                       FN_PTR(lookupNameAndTypeRefIndexInPool)},
1369   {CC"lookupSignatureInPool",                        CC"("HS_CONSTANT_POOL"I)"STRING,                                                  FN_PTR(lookupSignatureInPool)},
1370   {CC"lookupKlassRefIndexInPool",                    CC"("HS_CONSTANT_POOL"I)I",                                                       FN_PTR(lookupKlassRefIndexInPool)},
1371   {CC"lookupKlassInPool",                            CC"("HS_CONSTANT_POOL"I)Ljava/lang/Object;",                                      FN_PTR(lookupKlassInPool)},
1372   {CC"lookupAppendixInPool",                         CC"("HS_CONSTANT_POOL"I)"OBJECT,                                                  FN_PTR(lookupAppendixInPool)},
1373   {CC"lookupMethodInPool",                           CC"("HS_CONSTANT_POOL"IB)"HS_RESOLVED_METHOD,                                     FN_PTR(lookupMethodInPool)},
1374   {CC"constantPoolRemapInstructionOperandFromCache", CC"("HS_CONSTANT_POOL"I)I",                                                       FN_PTR(constantPoolRemapInstructionOperandFromCache)},
1375   {CC"resolveConstantInPool",                        CC"("HS_CONSTANT_POOL"I)"OBJECT,                                                  FN_PTR(resolveConstantInPool)},
1376   {CC"resolvePossiblyCachedConstantInPool",          CC"("HS_CONSTANT_POOL"I)"OBJECT,                                                  FN_PTR(resolvePossiblyCachedConstantInPool)},
1377   {CC"resolveTypeInPool",                            CC"("HS_CONSTANT_POOL"I)"HS_RESOLVED_KLASS,                                       FN_PTR(resolveTypeInPool)},
1378   {CC"resolveFieldInPool",                           CC"("HS_CONSTANT_POOL"IB[J)"HS_RESOLVED_KLASS,                                    FN_PTR(resolveFieldInPool)},
1379   {CC"resolveInvokeDynamicInPool",                   CC"("HS_CONSTANT_POOL"I)V",                                                       FN_PTR(resolveInvokeDynamicInPool)},
1380   {CC"resolveInvokeHandleInPool",                    CC"("HS_CONSTANT_POOL"I)V",                                                       FN_PTR(resolveInvokeHandleInPool)},
1381   {CC"resolveMethod",                                CC"("HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS")"HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
1382   {CC"getVtableIndexForInterfaceMethod",             CC"("HS_RESOLVED_KLASS HS_RESOLVED_METHOD")I",                                    FN_PTR(getVtableIndexForInterfaceMethod)},
1383   {CC"getClassInitializer",                          CC"("HS_RESOLVED_KLASS")"HS_RESOLVED_METHOD,                                      FN_PTR(getClassInitializer)},
1384   {CC"hasFinalizableSubclass",                       CC"("HS_RESOLVED_KLASS")Z",                                                       FN_PTR(hasFinalizableSubclass)},
1385   {CC"getMaxCallTargetOffset",                       CC"(J)J",                                                                         FN_PTR(getMaxCallTargetOffset)},
1386   {CC"getResolvedJavaMethodAtSlot",                  CC"("CLASS"I)"HS_RESOLVED_METHOD,                                                 FN_PTR(getResolvedJavaMethodAtSlot)},
1387   {CC"getResolvedJavaMethod",                        CC"(Ljava/lang/Object;J)"HS_RESOLVED_METHOD,                                      FN_PTR(getResolvedJavaMethod)},
1388   {CC"getConstantPool",                              CC"(Ljava/lang/Object;J)"HS_CONSTANT_POOL,                                        FN_PTR(getConstantPool)},
1389   {CC"getResolvedJavaType",                          CC"(Ljava/lang/Object;JZ)"HS_RESOLVED_KLASS,                                      FN_PTR(getResolvedJavaType)},
1390   {CC"initializeConfiguration",                      CC"("HS_CONFIG")J",                                                               FN_PTR(initializeConfiguration)},
1391   {CC"installCode",                                  CC"("TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE HS_SPECULATION_LOG")I",   FN_PTR(installCode)},
1392   {CC"getMetadata",                                  CC"("TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA")I",                         FN_PTR(getMetadata)},
1393   {CC"notifyCompilationStatistics",                  CC"(I"HS_RESOLVED_METHOD"ZIJJ"INSTALLED_CODE")V",                                 FN_PTR(notifyCompilationStatistics)},
1394   {CC"resetCompilationStatistics",                   CC"()V",                                                                          FN_PTR(resetCompilationStatistics)},
1395   {CC"disassembleCodeBlob",                          CC"("INSTALLED_CODE")"STRING,                                                     FN_PTR(disassembleCodeBlob)},
1396   {CC"executeInstalledCode",                         CC"(["OBJECT INSTALLED_CODE")"OBJECT,                                             FN_PTR(executeInstalledCode)},
1397   {CC"getLineNumberTable",                           CC"("HS_RESOLVED_METHOD")[J",                                                     FN_PTR(getLineNumberTable)},
1398   {CC"getLocalVariableTableStart",                   CC"("HS_RESOLVED_METHOD")J",                                                      FN_PTR(getLocalVariableTableStart)},
1399   {CC"getLocalVariableTableLength",                  CC"("HS_RESOLVED_METHOD")I",                                                      FN_PTR(getLocalVariableTableLength)},
1400   {CC"reprofile",                                    CC"("HS_RESOLVED_METHOD")V",                                                      FN_PTR(reprofile)},
1401   {CC"invalidateInstalledCode",                      CC"("INSTALLED_CODE")V",                                                          FN_PTR(invalidateInstalledCode)},
1402   {CC"readUncompressedOop",                          CC"(J)"OBJECT,                                                                    FN_PTR(readUncompressedOop)},
1403   {CC"collectCounters",                              CC"()[J",                                                                         FN_PTR(collectCounters)},
1404   {CC"allocateCompileId",                            CC"("HS_RESOLVED_METHOD"I)I",                                                     FN_PTR(allocateCompileId)},
1405   {CC"isMature",                                     CC"("METASPACE_METHOD_DATA")Z",                                                   FN_PTR(isMature)},
1406   {CC"hasCompiledCodeForOSR",                        CC"("HS_RESOLVED_METHOD"II)Z",                                                    FN_PTR(hasCompiledCodeForOSR)},
1407   {CC"getSymbol",                                    CC"(J)"STRING,                                                                    FN_PTR(getSymbol)},
1408   {CC"getNextStackFrame",                            CC"("HS_STACK_FRAME_REF "["RESOLVED_METHOD"I)"HS_STACK_FRAME_REF,                 FN_PTR(getNextStackFrame)},
1409   {CC"materializeVirtualObjects",                    CC"("HS_STACK_FRAME_REF"Z)V",                                                     FN_PTR(materializeVirtualObjects)},
1410   {CC"shouldDebugNonSafepoints",                     CC"()Z",                                                                          FN_PTR(shouldDebugNonSafepoints)},
1411   {CC"writeDebugOutput",                             CC"([BII)V",                                                                      FN_PTR(writeDebugOutput)},
1412   {CC"flushDebugOutput",                             CC"()V",                                                                          FN_PTR(flushDebugOutput)},
1413   {CC"methodDataProfileDataSize",                    CC"(JI)I",                                                                        FN_PTR(methodDataProfileDataSize)},
1414 };
1415 
1416 int CompilerToVM::methods_count() {
1417   return sizeof(methods) / sizeof(JNINativeMethod);
1418 }
1419