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 "ci/ciUtilities.inline.hpp"
  26 #include "classfile/javaClasses.inline.hpp"
  27 #include "code/scopeDesc.hpp"
  28 #include "memory/oopFactory.hpp"
  29 #include "oops/cpCache.inline.hpp"
  30 #include "oops/generateOopMap.hpp"
  31 #include "oops/method.inline.hpp"
  32 #include "oops/objArrayOop.inline.hpp"
  33 #include "oops/typeArrayOop.inline.hpp"
  34 #include "compiler/compileBroker.hpp"
  35 #include "compiler/disassembler.hpp"
  36 #include "jvmci/jvmciCompilerToVM.hpp"
  37 #include "jvmci/jvmciCodeInstaller.hpp"
  38 #include "jvmci/jvmciRuntime.hpp"
  39 #include "runtime/interfaceSupport.inline.hpp"
  40 #include "runtime/jniHandles.inline.hpp"
  41 #include "runtime/timerTrace.hpp"
  42 #include "runtime/vframe_hp.hpp"
  43 
  44 
  45 void JNIHandleMark::push_jni_handle_block() {
  46   JavaThread* thread = JavaThread::current();
  47   if (thread != NULL) {
  48     // Allocate a new block for JNI handles.
  49     // Inlined code from jni_PushLocalFrame()
  50     JNIHandleBlock* java_handles = ((JavaThread*)thread)->active_handles();
  51     JNIHandleBlock* compile_handles = JNIHandleBlock::allocate_block(thread);
  52     assert(compile_handles != NULL && java_handles != NULL, "should not be NULL");
  53     compile_handles->set_pop_frame_link(java_handles);
  54     thread->set_active_handles(compile_handles);
  55   }
  56 }
  57 
  58 void JNIHandleMark::pop_jni_handle_block() {
  59   JavaThread* thread = JavaThread::current();
  60   if (thread != NULL) {
  61     // Release our JNI handle block
  62     JNIHandleBlock* compile_handles = thread->active_handles();
  63     JNIHandleBlock* java_handles = compile_handles->pop_frame_link();
  64     thread->set_active_handles(java_handles);
  65     compile_handles->set_pop_frame_link(NULL);
  66     JNIHandleBlock::release_block(compile_handles, thread); // may block
  67   }
  68 }
  69 
  70 // Entry to native method implementation that transitions current thread to '_thread_in_vm'.
  71 #define C2V_VMENTRY(result_type, name, signature) \
  72   JNIEXPORT result_type JNICALL c2v_ ## name signature { \
  73   TRACE_jvmci_1("CompilerToVM::" #name); \
  74   TRACE_CALL(result_type, jvmci_ ## name signature) \
  75   JVMCI_VM_ENTRY_MARK; \
  76 
  77 #define C2V_END }
  78 
  79 oop CompilerToVM::get_jvmci_method(const methodHandle& method, TRAPS) {
  80   if (method() != NULL) {
  81     JavaValue result(T_OBJECT);
  82     JavaCallArguments args;
  83     args.push_long((jlong) (address) method());
  84     JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedJavaMethodImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::method_fromMetaspace_signature(), &args, CHECK_NULL);
  85 
  86     return (oop)result.get_jobject();
  87   }
  88   return NULL;
  89 }
  90 
  91 oop CompilerToVM::get_jvmci_type(Klass* klass, TRAPS) {
  92   if (klass != NULL) {
  93     JavaValue result(T_OBJECT);
  94     JavaCallArguments args;
  95     args.push_oop(Handle(THREAD, klass->java_mirror()));
  96     JavaCalls::call_static(&result, SystemDictionary::HotSpotResolvedObjectTypeImpl_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::klass_fromMetaspace_signature(), &args, CHECK_NULL);
  97 
  98     return (oop)result.get_jobject();
  99   }
 100   return NULL;
 101 }
 102 
 103 Handle JavaArgumentUnboxer::next_arg(BasicType expectedType) {
 104   assert(_index < _args->length(), "out of bounds");
 105   oop arg=((objArrayOop) (_args))->obj_at(_index++);
 106   assert(expectedType == T_OBJECT || java_lang_boxing_object::is_instance(arg, expectedType), "arg type mismatch");
 107   return Handle(Thread::current(), arg);
 108 }
 109 
 110 jobjectArray readConfiguration0(JNIEnv *env, TRAPS);
 111 
 112 C2V_VMENTRY(jobjectArray, readConfiguration, (JNIEnv *env))
 113    jobjectArray config = readConfiguration0(env, CHECK_NULL);
 114    return config;
 115 C2V_END
 116 
 117 C2V_VMENTRY(jobject, getFlagValue, (JNIEnv *, jobject c2vm, jobject name_handle))
 118 #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);
 119 #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);
 120   Handle name(THREAD, JNIHandles::resolve(name_handle));
 121   if (name.is_null()) {
 122     THROW_0(vmSymbols::java_lang_NullPointerException());
 123   }
 124   ResourceMark rm;
 125   const char* cstring = java_lang_String::as_utf8_string(name());
 126   Flag* flag = Flag::find_flag(cstring, strlen(cstring), /* allow_locked */ true, /* return_flag */ true);
 127   if (flag == NULL) {
 128     return c2vm;
 129   }
 130   if (flag->is_bool()) {
 131     jvalue prim;
 132     prim.z = flag->get_bool();
 133     oop box = java_lang_boxing_object::create(T_BOOLEAN, &prim, CHECK_NULL);
 134     return JNIHandles::make_local(THREAD, box);
 135   } else if (flag->is_ccstr()) {
 136     Handle value = java_lang_String::create_from_str(flag->get_ccstr(), CHECK_NULL);
 137     return JNIHandles::make_local(THREAD, value());
 138   } else if (flag->is_intx()) {
 139     RETURN_BOXED_LONG(flag->get_intx());
 140   } else if (flag->is_int()) {
 141     RETURN_BOXED_LONG(flag->get_int());
 142   } else if (flag->is_uint()) {
 143     RETURN_BOXED_LONG(flag->get_uint());
 144   } else if (flag->is_uint64_t()) {
 145     RETURN_BOXED_LONG(flag->get_uint64_t());
 146   } else if (flag->is_size_t()) {
 147     RETURN_BOXED_LONG(flag->get_size_t());
 148   } else if (flag->is_uintx()) {
 149     RETURN_BOXED_LONG(flag->get_uintx());
 150   } else if (flag->is_double()) {
 151     RETURN_BOXED_DOUBLE(flag->get_double());
 152   } else {
 153     JVMCI_ERROR_NULL("VM flag %s has unsupported type %s", flag->_name, flag->_type);
 154   }
 155 #undef RETURN_BOXED_LONG
 156 #undef RETURN_BOXED_DOUBLE
 157 C2V_END
 158 
 159 C2V_VMENTRY(jbyteArray, getBytecode, (JNIEnv *, jobject, jobject jvmci_method))
 160   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 161   ResourceMark rm;
 162 
 163   int code_size = method->code_size();
 164   typeArrayOop reconstituted_code = oopFactory::new_byteArray(code_size, CHECK_NULL);
 165 
 166   guarantee(method->method_holder()->is_rewritten(), "Method's holder should be rewritten");
 167   // iterate over all bytecodes and replace non-Java bytecodes
 168 
 169   for (BytecodeStream s(method); s.next() != Bytecodes::_illegal; ) {
 170     Bytecodes::Code code = s.code();
 171     Bytecodes::Code raw_code = s.raw_code();
 172     int bci = s.bci();
 173     int len = s.instruction_size();
 174 
 175     // Restore original byte code.
 176     reconstituted_code->byte_at_put(bci, (jbyte) (s.is_wide()? Bytecodes::_wide : code));
 177     if (len > 1) {
 178       memcpy(reconstituted_code->byte_at_addr(bci + 1), s.bcp()+1, len-1);
 179     }
 180 
 181     if (len > 1) {
 182       // Restore the big-endian constant pool indexes.
 183       // Cf. Rewriter::scan_method
 184       switch (code) {
 185         case Bytecodes::_getstatic:
 186         case Bytecodes::_putstatic:
 187         case Bytecodes::_getfield:
 188         case Bytecodes::_putfield:
 189         case Bytecodes::_invokevirtual:
 190         case Bytecodes::_invokespecial:
 191         case Bytecodes::_invokestatic:
 192         case Bytecodes::_invokeinterface:
 193         case Bytecodes::_invokehandle: {
 194           int cp_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
 195           Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
 196           break;
 197         }
 198 
 199         case Bytecodes::_invokedynamic: {
 200           int cp_index = Bytes::get_native_u4((address) reconstituted_code->byte_at_addr(bci + 1));
 201           Bytes::put_Java_u4((address) reconstituted_code->byte_at_addr(bci + 1), (u4) cp_index);
 202           break;
 203         }
 204 
 205         default:
 206           break;
 207       }
 208 
 209       // Not all ldc byte code are rewritten.
 210       switch (raw_code) {
 211         case Bytecodes::_fast_aldc: {
 212           int cpc_index = reconstituted_code->byte_at(bci + 1) & 0xff;
 213           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 214           assert(cp_index < method->constants()->length(), "sanity check");
 215           reconstituted_code->byte_at_put(bci + 1, (jbyte) cp_index);
 216           break;
 217         }
 218 
 219         case Bytecodes::_fast_aldc_w: {
 220           int cpc_index = Bytes::get_native_u2((address) reconstituted_code->byte_at_addr(bci + 1));
 221           int cp_index = method->constants()->object_to_cp_index(cpc_index);
 222           assert(cp_index < method->constants()->length(), "sanity check");
 223           Bytes::put_Java_u2((address) reconstituted_code->byte_at_addr(bci + 1), (u2) cp_index);
 224           break;
 225         }
 226 
 227         default:
 228           break;
 229       }
 230     }
 231   }
 232 
 233   return (jbyteArray) JNIHandles::make_local(THREAD, reconstituted_code);
 234 C2V_END
 235 
 236 C2V_VMENTRY(jint, getExceptionTableLength, (JNIEnv *, jobject, jobject jvmci_method))
 237   ResourceMark rm;
 238   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 239   return method->exception_table_length();
 240 C2V_END
 241 
 242 C2V_VMENTRY(jlong, getExceptionTableStart, (JNIEnv *, jobject, jobject jvmci_method))
 243   ResourceMark rm;
 244   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 245   if (method->exception_table_length() == 0) {
 246     return 0L;
 247   }
 248   return (jlong) (address) method->exception_table_start();
 249 C2V_END
 250 
 251 C2V_VMENTRY(jobject, asResolvedJavaMethod, (JNIEnv *, jobject, jobject executable_handle))
 252   oop executable = JNIHandles::resolve(executable_handle);
 253   oop mirror = NULL;
 254   int slot = 0;
 255 
 256   if (executable->klass() == SystemDictionary::reflect_Constructor_klass()) {
 257     mirror = java_lang_reflect_Constructor::clazz(executable);
 258     slot = java_lang_reflect_Constructor::slot(executable);
 259   } else {
 260     assert(executable->klass() == SystemDictionary::reflect_Method_klass(), "wrong type");
 261     mirror = java_lang_reflect_Method::clazz(executable);
 262     slot = java_lang_reflect_Method::slot(executable);
 263   }
 264   Klass* holder = java_lang_Class::as_Klass(mirror);
 265   methodHandle method = InstanceKlass::cast(holder)->method_with_idnum(slot);
 266   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 267   return JNIHandles::make_local(THREAD, result);
 268 }
 269 
 270 C2V_VMENTRY(jobject, getResolvedJavaMethod, (JNIEnv *, jobject, jobject base, jlong offset))
 271   methodHandle method;
 272   oop base_object = JNIHandles::resolve(base);
 273   if (base_object == NULL) {
 274     method = *((Method**)(offset));
 275   } else if (base_object->is_a(SystemDictionary::ResolvedMethodName_klass())) {
 276     method = (Method*) (intptr_t) base_object->long_field(offset);
 277   } else if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 278     method = *((Method**)(HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object) + offset));
 279   } else {
 280     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 281                 err_msg("Unexpected type: %s", base_object->klass()->external_name()));
 282   }
 283   assert (method.is_null() || method->is_method(), "invalid read");
 284   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 285   return JNIHandles::make_local(THREAD, result);
 286 }
 287 
 288 C2V_VMENTRY(jobject, getConstantPool, (JNIEnv *, jobject, jobject object_handle))
 289   constantPoolHandle cp;
 290   oop object = JNIHandles::resolve(object_handle);
 291   if (object == NULL) {
 292     THROW_0(vmSymbols::java_lang_NullPointerException());
 293   }
 294   if (object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 295     cp = CompilerToVM::asMethod(object)->constMethod()->constants();
 296   } else if (object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
 297     cp = InstanceKlass::cast(CompilerToVM::asKlass(object))->constants();
 298   } else {
 299     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 300                 err_msg("Unexpected type: %s", object->klass()->external_name()));
 301   }
 302   assert(!cp.is_null(), "npe");
 303   JavaValue method_result(T_OBJECT);
 304   JavaCallArguments args;
 305   args.push_long((jlong) (address) cp());
 306   JavaCalls::call_static(&method_result, SystemDictionary::HotSpotConstantPool_klass(), vmSymbols::fromMetaspace_name(), vmSymbols::constantPool_fromMetaspace_signature(), &args, CHECK_NULL);
 307   return JNIHandles::make_local(THREAD, (oop)method_result.get_jobject());
 308 }
 309 
 310 C2V_VMENTRY(jobject, getResolvedJavaType, (JNIEnv *, jobject, jobject base, jlong offset, jboolean compressed))
 311   Klass* klass = NULL;
 312   oop base_object = JNIHandles::resolve(base);
 313   jlong base_address = 0;
 314   if (base_object != NULL && offset == oopDesc::klass_offset_in_bytes()) {
 315     klass = base_object->klass();
 316   } else if (!compressed) {
 317     if (base_object != NULL) {
 318       if (base_object->is_a(SystemDictionary::HotSpotResolvedJavaMethodImpl_klass())) {
 319         base_address = HotSpotResolvedJavaMethodImpl::metaspaceMethod(base_object);
 320       } else if (base_object->is_a(SystemDictionary::HotSpotConstantPool_klass())) {
 321         base_address = HotSpotConstantPool::metaspaceConstantPool(base_object);
 322       } else if (base_object->is_a(SystemDictionary::HotSpotResolvedObjectTypeImpl_klass())) {
 323         base_address = (jlong) CompilerToVM::asKlass(base_object);
 324       } else if (base_object->is_a(SystemDictionary::Class_klass())) {
 325         base_address = (jlong) (address) base_object;
 326       } else {
 327         THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 328                     err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
 329       }
 330     }
 331     klass = *((Klass**) (intptr_t) (base_address + offset));
 332   } else {
 333     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 334                 err_msg("Unexpected arguments: %s " JLONG_FORMAT " %s", base_object->klass()->external_name(), offset, compressed ? "true" : "false"));
 335   }
 336   assert (klass == NULL || klass->is_klass(), "invalid read");
 337   oop result = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
 338   return JNIHandles::make_local(THREAD, result);
 339 }
 340 
 341 C2V_VMENTRY(jobject, findUniqueConcreteMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
 342   ResourceMark rm;
 343   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 344   Klass* holder = CompilerToVM::asKlass(jvmci_type);
 345   if (holder->is_interface()) {
 346     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", holder->external_name()));
 347   }
 348 
 349   methodHandle ucm;
 350   {
 351     MutexLocker locker(Compile_lock);
 352     ucm = Dependencies::find_unique_concrete_method(holder, method());
 353   }
 354   oop result = CompilerToVM::get_jvmci_method(ucm, CHECK_NULL);
 355   return JNIHandles::make_local(THREAD, result);
 356 C2V_END
 357 
 358 C2V_VMENTRY(jobject, getImplementor, (JNIEnv *, jobject, jobject jvmci_type))
 359   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 360   if (!klass->is_interface()) {
 361     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(),
 362         err_msg("Expected interface type, got %s", klass->external_name()));
 363   }
 364   InstanceKlass* iklass = InstanceKlass::cast(klass);
 365   oop implementor = CompilerToVM::get_jvmci_type(iklass->implementor(), CHECK_NULL);
 366   return JNIHandles::make_local(THREAD, implementor);
 367 C2V_END
 368 
 369 C2V_VMENTRY(jboolean, methodIsIgnoredBySecurityStackWalk,(JNIEnv *, jobject, jobject jvmci_method))
 370   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 371   return method->is_ignored_by_security_stack_walk();
 372 C2V_END
 373 
 374 C2V_VMENTRY(jboolean, isCompilable,(JNIEnv *, jobject, jobject jvmci_method))
 375   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 376   constantPoolHandle cp = method->constMethod()->constants();
 377   assert(!cp.is_null(), "npe");
 378   // don't inline method when constant pool contains a CONSTANT_Dynamic
 379   return !method->is_not_compilable(CompLevel_full_optimization) && !cp->has_dynamic_constant();
 380 C2V_END
 381 
 382 C2V_VMENTRY(jboolean, hasNeverInlineDirective,(JNIEnv *, jobject, jobject jvmci_method))
 383   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 384   return !Inline || CompilerOracle::should_not_inline(method) || method->dont_inline();
 385 C2V_END
 386 
 387 C2V_VMENTRY(jboolean, shouldInlineMethod,(JNIEnv *, jobject, jobject jvmci_method))
 388   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 389   return CompilerOracle::should_inline(method) || method->force_inline();
 390 C2V_END
 391 
 392 C2V_VMENTRY(jobject, lookupType, (JNIEnv*, jobject, jstring jname, jclass accessing_class, jboolean resolve))
 393   ResourceMark rm;
 394   Handle name(THREAD, JNIHandles::resolve(jname));
 395   Symbol* class_name = java_lang_String::as_symbol(name(), CHECK_0);
 396   if (java_lang_String::length(name()) <= 1) {
 397     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Primitive type %s should be handled in Java code", class_name->as_C_string()));
 398   }
 399 
 400   Klass* resolved_klass = NULL;
 401   if (JNIHandles::resolve(accessing_class) == NULL) {
 402     THROW_0(vmSymbols::java_lang_NullPointerException());
 403   }
 404   Klass* accessing_klass = java_lang_Class::as_Klass(JNIHandles::resolve(accessing_class));
 405   Handle class_loader(THREAD, accessing_klass->class_loader());
 406   Handle protection_domain(THREAD, accessing_klass->protection_domain());
 407 
 408   if (resolve) {
 409     resolved_klass = SystemDictionary::resolve_or_null(class_name, class_loader, protection_domain, CHECK_0);
 410   } else {
 411     if (class_name->byte_at(0) == 'L' &&
 412       class_name->byte_at(class_name->utf8_length()-1) == ';') {
 413       // This is a name from a signature.  Strip off the trimmings.
 414       // Call recursive to keep scope of strippedsym.
 415       TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1,
 416                                                           class_name->utf8_length()-2,
 417                                                           CHECK_0);
 418       resolved_klass = SystemDictionary::find(strippedsym, class_loader, protection_domain, CHECK_0);
 419     } else if (FieldType::is_array(class_name)) {
 420       FieldArrayInfo fd;
 421       // dimension and object_key in FieldArrayInfo are assigned as a side-effect
 422       // of this call
 423       BasicType t = FieldType::get_array_info(class_name, fd, CHECK_0);
 424       if (t == T_OBJECT) {
 425         TempNewSymbol strippedsym = SymbolTable::new_symbol(class_name->as_utf8()+1+fd.dimension(),
 426                                                             class_name->utf8_length()-2-fd.dimension(),
 427                                                             CHECK_0);
 428         // naked oop "k" is OK here -- we assign back into it
 429         resolved_klass = SystemDictionary::find(strippedsym,
 430                                                              class_loader,
 431                                                              protection_domain,
 432                                                              CHECK_0);
 433         if (resolved_klass != NULL) {
 434           resolved_klass = resolved_klass->array_klass(fd.dimension(), CHECK_0);
 435         }
 436       } else {
 437         resolved_klass = Universe::typeArrayKlassObj(t);
 438         resolved_klass = TypeArrayKlass::cast(resolved_klass)->array_klass(fd.dimension(), CHECK_0);
 439       }
 440     }
 441   }
 442   oop result = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
 443   return JNIHandles::make_local(THREAD, result);
 444 C2V_END
 445 
 446 C2V_VMENTRY(jobject, resolveConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 447   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 448   oop result = cp->resolve_constant_at(index, CHECK_NULL);
 449   return JNIHandles::make_local(THREAD, result);
 450 C2V_END
 451 
 452 C2V_VMENTRY(jobject, resolvePossiblyCachedConstantInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 453   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 454   oop result = cp->resolve_possibly_cached_constant_at(index, CHECK_NULL);
 455   return JNIHandles::make_local(THREAD, result);
 456 C2V_END
 457 
 458 C2V_VMENTRY(jint, lookupNameAndTypeRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 459   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 460   return cp->name_and_type_ref_index_at(index);
 461 C2V_END
 462 
 463 C2V_VMENTRY(jobject, lookupNameInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
 464   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 465   Handle sym = java_lang_String::create_from_symbol(cp->name_ref_at(which), CHECK_NULL);
 466   return JNIHandles::make_local(THREAD, sym());
 467 C2V_END
 468 
 469 C2V_VMENTRY(jobject, lookupSignatureInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint which))
 470   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 471   Handle sym = java_lang_String::create_from_symbol(cp->signature_ref_at(which), CHECK_NULL);
 472   return JNIHandles::make_local(THREAD, sym());
 473 C2V_END
 474 
 475 C2V_VMENTRY(jint, lookupKlassRefIndexInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 476   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 477   return cp->klass_ref_index_at(index);
 478 C2V_END
 479 
 480 C2V_VMENTRY(jobject, resolveTypeInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 481   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 482   Klass* resolved_klass = cp->klass_at(index, CHECK_NULL);
 483   if (resolved_klass->is_instance_klass()) {
 484     InstanceKlass::cast(resolved_klass)->link_class_or_fail(THREAD);
 485   }
 486   oop klass = CompilerToVM::get_jvmci_type(resolved_klass, CHECK_NULL);
 487   return JNIHandles::make_local(THREAD, klass);
 488 C2V_END
 489 
 490 C2V_VMENTRY(jobject, lookupKlassInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 491   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 492   Klass* loading_klass = cp->pool_holder();
 493   bool is_accessible = false;
 494   Klass* klass = JVMCIEnv::get_klass_by_index(cp, index, is_accessible, loading_klass);
 495   Symbol* symbol = NULL;
 496   if (klass == NULL) {
 497     symbol = cp->klass_name_at(index);
 498   }
 499   oop result_oop;
 500   if (klass != NULL) {
 501     result_oop = CompilerToVM::get_jvmci_type(klass, CHECK_NULL);
 502   } else {
 503     Handle result = java_lang_String::create_from_symbol(symbol, CHECK_NULL);
 504     result_oop = result();
 505   }
 506   return JNIHandles::make_local(THREAD, result_oop);
 507 C2V_END
 508 
 509 C2V_VMENTRY(jobject, lookupAppendixInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 510   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 511   oop appendix_oop = ConstantPool::appendix_at_if_loaded(cp, index);
 512   return JNIHandles::make_local(THREAD, appendix_oop);
 513 C2V_END
 514 
 515 C2V_VMENTRY(jobject, lookupMethodInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jbyte opcode))
 516   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 517   InstanceKlass* pool_holder = cp->pool_holder();
 518   Bytecodes::Code bc = (Bytecodes::Code) (((int) opcode) & 0xFF);
 519   methodHandle method = JVMCIEnv::get_method_by_index(cp, index, bc, pool_holder);
 520   oop result = CompilerToVM::get_jvmci_method(method, CHECK_NULL);
 521   return JNIHandles::make_local(THREAD, result);
 522 C2V_END
 523 
 524 C2V_VMENTRY(jint, constantPoolRemapInstructionOperandFromCache, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
 525   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 526   return cp->remap_instruction_operand_from_cache(index);
 527 C2V_END
 528 
 529 C2V_VMENTRY(jobject, resolveFieldInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index, jobject jvmci_method, jbyte opcode, jintArray info_handle))
 530   ResourceMark rm;
 531   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
 532   Bytecodes::Code code = (Bytecodes::Code)(((int) opcode) & 0xFF);
 533   fieldDescriptor fd;
 534   LinkInfo link_info(cp, index, (jvmci_method != NULL) ? CompilerToVM::asMethod(jvmci_method) : NULL, CHECK_0);
 535   LinkResolver::resolve_field(fd, link_info, Bytecodes::java_code(code), false, CHECK_0);
 536   typeArrayOop info = (typeArrayOop) JNIHandles::resolve(info_handle);
 537   if (info == NULL || info->length() != 3) {
 538     JVMCI_ERROR_NULL("info must not be null and have a length of 3");
 539   }
 540   info->int_at_put(0, fd.access_flags().as_int());
 541   info->int_at_put(1, fd.offset());
 542   info->int_at_put(2, fd.index());
 543   oop field_holder = CompilerToVM::get_jvmci_type(fd.field_holder(), CHECK_NULL);
 544   return JNIHandles::make_local(THREAD, field_holder);
 545 C2V_END
 546 
 547 C2V_VMENTRY(jint, getVtableIndexForInterfaceMethod, (JNIEnv *, jobject, jobject jvmci_type, jobject jvmci_method))
 548   ResourceMark rm;
 549   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 550   Method* method = CompilerToVM::asMethod(jvmci_method);
 551   if (klass->is_interface()) {
 552     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Interface %s should be handled in Java code", klass->external_name()));
 553   }
 554   if (!method->method_holder()->is_interface()) {
 555     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()));
 556   }
 557   if (!InstanceKlass::cast(klass)->is_linked()) {
 558     THROW_MSG_0(vmSymbols::java_lang_InternalError(), err_msg("Class %s must be linked", klass->external_name()));
 559   }
 560   return LinkResolver::vtable_index_of_interface_method(klass, method);
 561 C2V_END
 562 
 563 C2V_VMENTRY(jobject, resolveMethod, (JNIEnv *, jobject, jobject receiver_jvmci_type, jobject jvmci_method, jobject caller_jvmci_type))
 564   Klass* recv_klass = CompilerToVM::asKlass(receiver_jvmci_type);
 565   Klass* caller_klass = CompilerToVM::asKlass(caller_jvmci_type);
 566   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 567 
 568   Klass* resolved     = method->method_holder();
 569   Symbol* h_name      = method->name();
 570   Symbol* h_signature = method->signature();
 571 
 572   if (MethodHandles::is_signature_polymorphic_method(method())) {
 573       // Signature polymorphic methods are already resolved, JVMCI just returns NULL in this case.
 574       return NULL;
 575   }
 576 
 577   LinkInfo link_info(resolved, h_name, h_signature, caller_klass);
 578   methodHandle m;
 579   // Only do exact lookup if receiver klass has been linked.  Otherwise,
 580   // the vtable has not been setup, and the LinkResolver will fail.
 581   if (recv_klass->is_array_klass() ||
 582       (InstanceKlass::cast(recv_klass)->is_linked() && !recv_klass->is_interface())) {
 583     if (resolved->is_interface()) {
 584       m = LinkResolver::resolve_interface_call_or_null(recv_klass, link_info);
 585     } else {
 586       m = LinkResolver::resolve_virtual_call_or_null(recv_klass, link_info);
 587     }
 588   }
 589 
 590   if (m.is_null()) {
 591     // Return NULL if there was a problem with lookup (uninitialized class, etc.)
 592     return NULL;
 593   }
 594 
 595   oop result = CompilerToVM::get_jvmci_method(m, CHECK_NULL);
 596   return JNIHandles::make_local(THREAD, result);
 597 C2V_END
 598 
 599 C2V_VMENTRY(jboolean, hasFinalizableSubclass,(JNIEnv *, jobject, jobject jvmci_type))
 600   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 601   assert(klass != NULL, "method must not be called for primitive types");
 602   return Dependencies::find_finalizable_subclass(klass) != NULL;
 603 C2V_END
 604 
 605 C2V_VMENTRY(jobject, getClassInitializer, (JNIEnv *, jobject, jobject jvmci_type))
 606   Klass* klass = CompilerToVM::asKlass(jvmci_type);
 607   if (!klass->is_instance_klass()) {
 608     return NULL;
 609   }
 610   InstanceKlass* iklass = InstanceKlass::cast(klass);
 611   oop result = CompilerToVM::get_jvmci_method(iklass->class_initializer(), CHECK_NULL);
 612   return JNIHandles::make_local(THREAD, result);
 613 C2V_END
 614 
 615 C2V_VMENTRY(jlong, getMaxCallTargetOffset, (JNIEnv*, jobject, jlong addr))
 616   address target_addr = (address) addr;
 617   if (target_addr != 0x0) {
 618     int64_t off_low = (int64_t)target_addr - ((int64_t)CodeCache::low_bound() + sizeof(int));
 619     int64_t off_high = (int64_t)target_addr - ((int64_t)CodeCache::high_bound() + sizeof(int));
 620     return MAX2(ABS(off_low), ABS(off_high));
 621   }
 622   return -1;
 623 C2V_END
 624 
 625 C2V_VMENTRY(void, setNotInlinableOrCompilable,(JNIEnv *, jobject,  jobject jvmci_method))
 626   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 627   method->set_not_c1_compilable();
 628   method->set_not_c2_compilable();
 629   method->set_dont_inline(true);
 630 C2V_END
 631 
 632 C2V_VMENTRY(jint, installCode, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject installed_code, jobject speculation_log))
 633   ResourceMark rm;
 634   HandleMark hm;
 635   JNIHandleMark jni_hm;
 636 
 637   Handle target_handle(THREAD, JNIHandles::resolve(target));
 638   Handle compiled_code_handle(THREAD, JNIHandles::resolve(compiled_code));
 639   CodeBlob* cb = NULL;
 640   Handle installed_code_handle(THREAD, JNIHandles::resolve(installed_code));
 641   Handle speculation_log_handle(THREAD, JNIHandles::resolve(speculation_log));
 642 
 643   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK_JNI_ERR);
 644 
 645   TraceTime install_time("installCode", JVMCICompiler::codeInstallTimer());
 646   bool is_immutable_PIC = HotSpotCompiledCode::isImmutablePIC(compiled_code_handle) > 0;
 647   CodeInstaller installer(is_immutable_PIC);
 648   JVMCIEnv::CodeInstallResult result = installer.install(compiler, target_handle, compiled_code_handle, cb, installed_code_handle, speculation_log_handle, CHECK_0);
 649 
 650   if (PrintCodeCacheOnCompilation) {
 651     stringStream s;
 652     // Dump code cache  into a buffer before locking the tty,
 653     {
 654       MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
 655       CodeCache::print_summary(&s, false);
 656     }
 657     ttyLocker ttyl;
 658     tty->print_raw_cr(s.as_string());
 659   }
 660 
 661   if (result != JVMCIEnv::ok) {
 662     assert(cb == NULL, "should be");
 663   } else {
 664     if (installed_code_handle.not_null()) {
 665       assert(installed_code_handle->is_a(InstalledCode::klass()), "wrong type");
 666       nmethod::invalidate_installed_code(installed_code_handle, CHECK_0);
 667       {
 668         // Ensure that all updates to the InstalledCode fields are consistent.
 669         MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
 670         InstalledCode::set_address(installed_code_handle, (jlong) cb);
 671         InstalledCode::set_version(installed_code_handle, InstalledCode::version(installed_code_handle) + 1);
 672         if (cb->is_nmethod()) {
 673           InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->as_nmethod_or_null()->verified_entry_point());
 674         } else {
 675           InstalledCode::set_entryPoint(installed_code_handle, (jlong) cb->code_begin());
 676         }
 677         if (installed_code_handle->is_a(HotSpotInstalledCode::klass())) {
 678           HotSpotInstalledCode::set_size(installed_code_handle, cb->size());
 679           HotSpotInstalledCode::set_codeStart(installed_code_handle, (jlong) cb->code_begin());
 680           HotSpotInstalledCode::set_codeSize(installed_code_handle, cb->code_size());
 681         }
 682       }
 683     }
 684   }
 685   return result;
 686 C2V_END
 687 
 688 C2V_VMENTRY(jint, getMetadata, (JNIEnv *jniEnv, jobject, jobject target, jobject compiled_code, jobject metadata))
 689   ResourceMark rm;
 690   HandleMark hm;
 691 
 692   Handle target_handle(THREAD, JNIHandles::resolve(target));
 693   Handle compiled_code_handle(THREAD, JNIHandles::resolve(compiled_code));
 694   Handle metadata_handle(THREAD, JNIHandles::resolve(metadata));
 695 
 696   CodeMetadata code_metadata;
 697   CodeBlob *cb = NULL;
 698   CodeInstaller installer(true /* immutable PIC compilation */);
 699 
 700   JVMCIEnv::CodeInstallResult result = installer.gather_metadata(target_handle, compiled_code_handle, code_metadata, CHECK_0);
 701   if (result != JVMCIEnv::ok) {
 702     return result;
 703   }
 704 
 705   if (code_metadata.get_nr_pc_desc() > 0) {
 706     typeArrayHandle pcArrayOop = oopFactory::new_byteArray_handle(sizeof(PcDesc) * code_metadata.get_nr_pc_desc(), CHECK_(JVMCIEnv::cache_full));
 707     memcpy(pcArrayOop->byte_at_addr(0), code_metadata.get_pc_desc(), sizeof(PcDesc) * code_metadata.get_nr_pc_desc());
 708     HotSpotMetaData::set_pcDescBytes(metadata_handle, pcArrayOop());
 709   }
 710 
 711   if (code_metadata.get_scopes_size() > 0) {
 712     typeArrayHandle scopesArrayOop = oopFactory::new_byteArray_handle(code_metadata.get_scopes_size(), CHECK_(JVMCIEnv::cache_full));
 713     memcpy(scopesArrayOop->byte_at_addr(0), code_metadata.get_scopes_desc(), code_metadata.get_scopes_size());
 714     HotSpotMetaData::set_scopesDescBytes(metadata_handle, scopesArrayOop());
 715   }
 716 
 717   RelocBuffer* reloc_buffer = code_metadata.get_reloc_buffer();
 718   typeArrayHandle relocArrayOop = oopFactory::new_byteArray_handle((int) reloc_buffer->size(), CHECK_(JVMCIEnv::cache_full));
 719   if (reloc_buffer->size() > 0) {
 720     memcpy(relocArrayOop->byte_at_addr(0), reloc_buffer->begin(), reloc_buffer->size());
 721   }
 722   HotSpotMetaData::set_relocBytes(metadata_handle, relocArrayOop());
 723 
 724   const OopMapSet* oopMapSet = installer.oopMapSet();
 725   {
 726     ResourceMark mark;
 727     ImmutableOopMapBuilder builder(oopMapSet);
 728     int oopmap_size = builder.heap_size();
 729     typeArrayHandle oopMapArrayHandle = oopFactory::new_byteArray_handle(oopmap_size, CHECK_(JVMCIEnv::cache_full));
 730     builder.generate_into((address) oopMapArrayHandle->byte_at_addr(0));
 731     HotSpotMetaData::set_oopMaps(metadata_handle, oopMapArrayHandle());
 732   }
 733 
 734   AOTOopRecorder* recorder = code_metadata.get_oop_recorder();
 735 
 736   int nr_meta_refs = recorder->nr_meta_refs();
 737   objArrayOop metadataArray = oopFactory::new_objectArray(nr_meta_refs, CHECK_(JVMCIEnv::cache_full));
 738   objArrayHandle metadataArrayHandle(THREAD, metadataArray);
 739   for (int i = 0; i < nr_meta_refs; ++i) {
 740     jobject element = recorder->meta_element(i);
 741     if (element == NULL) {
 742       return JVMCIEnv::cache_full;
 743     }
 744     metadataArrayHandle->obj_at_put(i, JNIHandles::resolve(element));
 745   }
 746   HotSpotMetaData::set_metadata(metadata_handle, metadataArrayHandle());
 747 
 748   ExceptionHandlerTable* handler = code_metadata.get_exception_table();
 749   int table_size = handler->size_in_bytes();
 750   typeArrayHandle exceptionArrayOop = oopFactory::new_byteArray_handle(table_size, CHECK_(JVMCIEnv::cache_full));
 751 
 752   if (table_size > 0) {
 753     handler->copy_bytes_to((address) exceptionArrayOop->byte_at_addr(0));
 754   }
 755   HotSpotMetaData::set_exceptionBytes(metadata_handle, exceptionArrayOop());
 756 
 757   return result;
 758 C2V_END
 759 
 760 C2V_VMENTRY(void, resetCompilationStatistics, (JNIEnv *jniEnv, jobject))
 761   JVMCICompiler* compiler = JVMCICompiler::instance(true, CHECK);
 762   CompilerStatistics* stats = compiler->stats();
 763   stats->_standard.reset();
 764   stats->_osr.reset();
 765 C2V_END
 766 
 767 C2V_VMENTRY(jobject, disassembleCodeBlob, (JNIEnv *jniEnv, jobject, jobject installedCode))
 768   ResourceMark rm;
 769   HandleMark hm;
 770 
 771   if (installedCode == NULL) {
 772     THROW_MSG_NULL(vmSymbols::java_lang_NullPointerException(), "installedCode is null");
 773   }
 774 
 775   jlong codeBlob = InstalledCode::address(installedCode);
 776   if (codeBlob == 0L) {
 777     return NULL;
 778   }
 779 
 780   CodeBlob* cb = (CodeBlob*) (address) codeBlob;
 781   if (cb == NULL) {
 782     return NULL;
 783   }
 784 
 785   // We don't want the stringStream buffer to resize during disassembly as it
 786   // uses scoped resource memory. If a nested function called during disassembly uses
 787   // a ResourceMark and the buffer expands within the scope of the mark,
 788   // the buffer becomes garbage when that scope is exited. Experience shows that
 789   // the disassembled code is typically about 10x the code size so a fixed buffer
 790   // sized to 20x code size plus a fixed amount for header info should be sufficient.
 791   int bufferSize = cb->code_size() * 20 + 1024;
 792   char* buffer = NEW_RESOURCE_ARRAY(char, bufferSize);
 793   stringStream st(buffer, bufferSize);
 794   if (cb->is_nmethod()) {
 795     nmethod* nm = (nmethod*) cb;
 796     if (!nm->is_alive()) {
 797       return NULL;
 798     }
 799   }
 800   Disassembler::decode(cb, &st);
 801   if (st.size() <= 0) {
 802     return NULL;
 803   }
 804 
 805   Handle result = java_lang_String::create_from_platform_dependent_str(st.as_string(), CHECK_NULL);
 806   return JNIHandles::make_local(THREAD, result());
 807 C2V_END
 808 
 809 C2V_VMENTRY(jobject, getStackTraceElement, (JNIEnv*, jobject, jobject jvmci_method, int bci))
 810   ResourceMark rm;
 811   HandleMark hm;
 812 
 813   methodHandle method = CompilerToVM::asMethod(jvmci_method);
 814   oop element = java_lang_StackTraceElement::create(method, bci, CHECK_NULL);
 815   return JNIHandles::make_local(THREAD, element);
 816 C2V_END
 817 
 818 C2V_VMENTRY(jobject, executeInstalledCode, (JNIEnv*, jobject, jobject args, jobject hotspotInstalledCode))
 819   ResourceMark rm;
 820   HandleMark hm;
 821 
 822   jlong nmethodValue = InstalledCode::address(hotspotInstalledCode);
 823   if (nmethodValue == 0L) {
 824     THROW_NULL(vmSymbols::jdk_vm_ci_code_InvalidInstalledCodeException());
 825   }
 826   nmethod* nm = (nmethod*) (address) nmethodValue;
 827   methodHandle mh = nm->method();
 828   Symbol* signature = mh->signature();
 829   JavaCallArguments jca(mh->size_of_parameters());
 830 
 831   JavaArgumentUnboxer jap(signature, &jca, (arrayOop) JNIHandles::resolve(args), mh->is_static());
 832   JavaValue result(jap.get_ret_type());
 833   jca.set_alternative_target(nm);
 834   JavaCalls::call(&result, mh, &jca, CHECK_NULL);
 835 
 836   if (jap.get_ret_type() == T_VOID) {
 837     return NULL;
 838   } else if (jap.get_ret_type() == T_OBJECT || jap.get_ret_type() == T_ARRAY) {
 839     return JNIHandles::make_local(THREAD, (oop) result.get_jobject());
 840   } else {
 841     jvalue *value = (jvalue *) result.get_value_addr();
 842     // Narrow the value down if required (Important on big endian machines)
 843     switch (jap.get_ret_type()) {
 844       case T_BOOLEAN:
 845        value->z = (jboolean) value->i;
 846        break;
 847       case T_BYTE:
 848        value->b = (jbyte) value->i;
 849        break;
 850       case T_CHAR:
 851        value->c = (jchar) value->i;
 852        break;
 853       case T_SHORT:
 854        value->s = (jshort) value->i;
 855        break;
 856       default:
 857         break;
 858     }
 859     oop o = java_lang_boxing_object::create(jap.get_ret_type(), value, CHECK_NULL);
 860     return JNIHandles::make_local(THREAD, o);
 861   }
 862 C2V_END
 863 
 864 C2V_VMENTRY(jlongArray, getLineNumberTable, (JNIEnv *, jobject, jobject jvmci_method))
 865   Method* method = CompilerToVM::asMethod(jvmci_method);
 866   if (!method->has_linenumber_table()) {
 867     return NULL;
 868   }
 869   u2 num_entries = 0;
 870   CompressedLineNumberReadStream streamForSize(method->compressed_linenumber_table());
 871   while (streamForSize.read_pair()) {
 872     num_entries++;
 873   }
 874 
 875   CompressedLineNumberReadStream stream(method->compressed_linenumber_table());
 876   typeArrayOop result = oopFactory::new_longArray(2 * num_entries, CHECK_NULL);
 877 
 878   int i = 0;
 879   jlong value;
 880   while (stream.read_pair()) {
 881     value = ((long) stream.bci());
 882     result->long_at_put(i, value);
 883     value = ((long) stream.line());
 884     result->long_at_put(i + 1, value);
 885     i += 2;
 886   }
 887 
 888   return (jlongArray) JNIHandles::make_local(THREAD, result);
 889 C2V_END
 890 
 891 C2V_VMENTRY(jlong, getLocalVariableTableStart, (JNIEnv *, jobject, jobject jvmci_method))
 892   ResourceMark rm;
 893   Method* method = CompilerToVM::asMethod(jvmci_method);
 894   if (!method->has_localvariable_table()) {
 895     return 0;
 896   }
 897   return (jlong) (address) method->localvariable_table_start();
 898 C2V_END
 899 
 900 C2V_VMENTRY(jint, getLocalVariableTableLength, (JNIEnv *, jobject, jobject jvmci_method))
 901   ResourceMark rm;
 902   Method* method = CompilerToVM::asMethod(jvmci_method);
 903   return method->localvariable_table_length();
 904 C2V_END
 905 
 906 C2V_VMENTRY(void, reprofile, (JNIEnv*, jobject, jobject jvmci_method))
 907   Method* method = CompilerToVM::asMethod(jvmci_method);
 908   MethodCounters* mcs = method->method_counters();
 909   if (mcs != NULL) {
 910     mcs->clear_counters();
 911   }
 912   NOT_PRODUCT(method->set_compiled_invocation_count(0));
 913 
 914   CompiledMethod* code = method->code();
 915   if (code != NULL) {
 916     code->make_not_entrant();
 917   }
 918 
 919   MethodData* method_data = method->method_data();
 920   if (method_data == NULL) {
 921     ClassLoaderData* loader_data = method->method_holder()->class_loader_data();
 922     method_data = MethodData::allocate(loader_data, method, CHECK);
 923     method->set_method_data(method_data);
 924   } else {
 925     method_data->initialize();
 926   }
 927 C2V_END
 928 
 929 
 930 C2V_VMENTRY(void, invalidateInstalledCode, (JNIEnv*, jobject, jobject installed_code))
 931   Handle installed_code_handle(THREAD, JNIHandles::resolve(installed_code));
 932   nmethod::invalidate_installed_code(installed_code_handle, CHECK);
 933 C2V_END
 934 
 935 C2V_VMENTRY(jlongArray, collectCounters, (JNIEnv*, jobject))
 936   typeArrayOop arrayOop = oopFactory::new_longArray(JVMCICounterSize, CHECK_NULL);
 937   JavaThread::collect_counters(arrayOop);
 938   return (jlongArray) JNIHandles::make_local(THREAD, arrayOop);
 939 C2V_END
 940 
 941 C2V_VMENTRY(int, allocateCompileId, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci))
 942   HandleMark hm;
 943   ResourceMark rm;
 944   if (JNIHandles::resolve(jvmci_method) == NULL) {
 945     THROW_0(vmSymbols::java_lang_NullPointerException());
 946   }
 947   Method* method = CompilerToVM::asMethod(jvmci_method);
 948   if (entry_bci >= method->code_size() || entry_bci < -1) {
 949     THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Unexpected bci %d", entry_bci));
 950   }
 951   return CompileBroker::assign_compile_id_unlocked(THREAD, method, entry_bci);
 952 C2V_END
 953 
 954 
 955 C2V_VMENTRY(jboolean, isMature, (JNIEnv*, jobject, jlong metaspace_method_data))
 956   MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
 957   return mdo != NULL && mdo->is_mature();
 958 C2V_END
 959 
 960 C2V_VMENTRY(jboolean, hasCompiledCodeForOSR, (JNIEnv*, jobject, jobject jvmci_method, int entry_bci, int comp_level))
 961   Method* method = CompilerToVM::asMethod(jvmci_method);
 962   return method->lookup_osr_nmethod_for(entry_bci, comp_level, true) != NULL;
 963 C2V_END
 964 
 965 C2V_VMENTRY(jobject, getSymbol, (JNIEnv*, jobject, jlong symbol))
 966   Handle sym = java_lang_String::create_from_symbol((Symbol*)(address)symbol, CHECK_NULL);
 967   return JNIHandles::make_local(THREAD, sym());
 968 C2V_END
 969 
 970 bool matches(jobjectArray methods, Method* method) {
 971   objArrayOop methods_oop = (objArrayOop) JNIHandles::resolve(methods);
 972 
 973   for (int i = 0; i < methods_oop->length(); i++) {
 974     oop resolved = methods_oop->obj_at(i);
 975     if (resolved->is_a(HotSpotResolvedJavaMethodImpl::klass()) && CompilerToVM::asMethod(resolved) == method) {
 976       return true;
 977     }
 978   }
 979   return false;
 980 }
 981 
 982 void call_interface(JavaValue* result, Klass* spec_klass, Symbol* name, Symbol* signature, JavaCallArguments* args, TRAPS) {
 983   CallInfo callinfo;
 984   Handle receiver = args->receiver();
 985   Klass* recvrKlass = receiver.is_null() ? (Klass*)NULL : receiver->klass();
 986   LinkInfo link_info(spec_klass, name, signature);
 987   LinkResolver::resolve_interface_call(
 988           callinfo, receiver, recvrKlass, link_info, true, CHECK);
 989   methodHandle method = callinfo.selected_method();
 990   assert(method.not_null(), "should have thrown exception");
 991 
 992   // Invoke the method
 993   JavaCalls::call(result, method, args, CHECK);
 994 }
 995 
 996 C2V_VMENTRY(jobject, iterateFrames, (JNIEnv*, jobject compilerToVM, jobjectArray initial_methods, jobjectArray match_methods, jint initialSkip, jobject visitor_handle))
 997   ResourceMark rm;
 998 
 999   if (!thread->has_last_Java_frame()) {
1000     return NULL;
1001   }
1002   Handle visitor(THREAD, JNIHandles::resolve_non_null(visitor_handle));
1003   Handle frame_reference = HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1004   HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1005 
1006   StackFrameStream fst(thread);
1007 
1008   jobjectArray methods = initial_methods;
1009 
1010   int frame_number = 0;
1011   vframe* vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1012 
1013   while (true) {
1014     // look for the given method
1015     bool realloc_called = false;
1016     while (true) {
1017       StackValueCollection* locals = NULL;
1018       if (vf->is_compiled_frame()) {
1019         // compiled method frame
1020         compiledVFrame* cvf = compiledVFrame::cast(vf);
1021         if (methods == NULL || matches(methods, cvf->method())) {
1022           if (initialSkip > 0) {
1023             initialSkip--;
1024           } else {
1025             ScopeDesc* scope = cvf->scope();
1026             // native wrappers do not have a scope
1027             if (scope != NULL && scope->objects() != NULL) {
1028               GrowableArray<ScopeValue*>* objects;
1029               if (!realloc_called) {
1030                 objects = scope->objects();
1031               } else {
1032                 // some object might already have been re-allocated, only reallocate the non-allocated ones
1033                 objects = new GrowableArray<ScopeValue*>(scope->objects()->length());
1034                 int ii = 0;
1035                 for (int i = 0; i < scope->objects()->length(); i++) {
1036                   ObjectValue* sv = (ObjectValue*) scope->objects()->at(i);
1037                   if (sv->value().is_null()) {
1038                     objects->at_put(ii++, sv);
1039                   }
1040                 }
1041               }
1042               bool realloc_failures = Deoptimization::realloc_objects(thread, fst.current(), objects, CHECK_NULL);
1043               Deoptimization::reassign_fields(fst.current(), fst.register_map(), objects, realloc_failures, false);
1044               realloc_called = true;
1045 
1046               GrowableArray<ScopeValue*>* local_values = scope->locals();
1047               assert(local_values != NULL, "NULL locals");
1048               typeArrayOop array_oop = oopFactory::new_boolArray(local_values->length(), CHECK_NULL);
1049               typeArrayHandle array(THREAD, array_oop);
1050               for (int i = 0; i < local_values->length(); i++) {
1051                 ScopeValue* value = local_values->at(i);
1052                 if (value->is_object()) {
1053                   array->bool_at_put(i, true);
1054                 }
1055               }
1056               HotSpotStackFrameReference::set_localIsVirtual(frame_reference, array());
1057             } else {
1058               HotSpotStackFrameReference::set_localIsVirtual(frame_reference, NULL);
1059             }
1060 
1061             locals = cvf->locals();
1062             HotSpotStackFrameReference::set_bci(frame_reference, cvf->bci());
1063             oop method = CompilerToVM::get_jvmci_method(cvf->method(), CHECK_NULL);
1064             HotSpotStackFrameReference::set_method(frame_reference, method);
1065           }
1066         }
1067       } else if (vf->is_interpreted_frame()) {
1068         // interpreted method frame
1069         interpretedVFrame* ivf = interpretedVFrame::cast(vf);
1070         if (methods == NULL || matches(methods, ivf->method())) {
1071           if (initialSkip > 0) {
1072             initialSkip--;
1073           } else {
1074             locals = ivf->locals();
1075             HotSpotStackFrameReference::set_bci(frame_reference, ivf->bci());
1076             oop method = CompilerToVM::get_jvmci_method(ivf->method(), CHECK_NULL);
1077             HotSpotStackFrameReference::set_method(frame_reference, method);
1078             HotSpotStackFrameReference::set_localIsVirtual(frame_reference, NULL);
1079           }
1080         }
1081       }
1082 
1083       // locals != NULL means that we found a matching frame and result is already partially initialized
1084       if (locals != NULL) {
1085         methods = match_methods;
1086         HotSpotStackFrameReference::set_compilerToVM(frame_reference, JNIHandles::resolve(compilerToVM));
1087         HotSpotStackFrameReference::set_stackPointer(frame_reference, (jlong) fst.current()->sp());
1088         HotSpotStackFrameReference::set_frameNumber(frame_reference, frame_number);
1089 
1090         // initialize the locals array
1091         objArrayOop array_oop = oopFactory::new_objectArray(locals->size(), CHECK_NULL);
1092         objArrayHandle array(THREAD, array_oop);
1093         for (int i = 0; i < locals->size(); i++) {
1094           StackValue* var = locals->at(i);
1095           if (var->type() == T_OBJECT) {
1096             array->obj_at_put(i, locals->at(i)->get_obj()());
1097           }
1098         }
1099         HotSpotStackFrameReference::set_locals(frame_reference, array());
1100         HotSpotStackFrameReference::set_objectsMaterialized(frame_reference, JNI_FALSE);
1101 
1102         JavaValue result(T_OBJECT);
1103         JavaCallArguments args(visitor);
1104         args.push_oop(frame_reference);
1105         call_interface(&result, SystemDictionary::InspectedFrameVisitor_klass(), vmSymbols::visitFrame_name(), vmSymbols::visitFrame_signature(), &args, CHECK_NULL);
1106         if (result.get_jobject() != NULL) {
1107           return JNIHandles::make_local(thread, (oop) result.get_jobject());
1108         }
1109         assert(initialSkip == 0, "There should be no match before initialSkip == 0");
1110         if (HotSpotStackFrameReference::objectsMaterialized(frame_reference) == JNI_TRUE) {
1111           // the frame has been deoptimized, we need to re-synchronize the frame and vframe
1112           intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(frame_reference);
1113           fst = StackFrameStream(thread);
1114           while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1115             fst.next();
1116           }
1117           if (fst.current()->sp() != stack_pointer) {
1118             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1119           }
1120           vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1121           if (!vf->is_compiled_frame()) {
1122             THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1123           }
1124           for (int i = 0; i < frame_number; i++) {
1125             if (vf->is_top()) {
1126               THROW_MSG_NULL(vmSymbols::java_lang_IllegalStateException(), "vframe not found after deopt")
1127             }
1128             vf = vf->sender();
1129             assert(vf->is_compiled_frame(), "Wrong frame type");
1130           }
1131         }
1132         frame_reference = HotSpotStackFrameReference::klass()->allocate_instance_handle(CHECK_NULL);
1133         HotSpotStackFrameReference::klass()->initialize(CHECK_NULL);
1134       }
1135 
1136       if (vf->is_top()) {
1137         break;
1138       }
1139       frame_number++;
1140       vf = vf->sender();
1141     } // end of vframe loop
1142 
1143     if (fst.is_done()) {
1144       break;
1145     }
1146     fst.next();
1147     vf = vframe::new_vframe(fst.current(), fst.register_map(), thread);
1148     frame_number = 0;
1149   } // end of frame loop
1150 
1151   // the end was reached without finding a matching method
1152   return NULL;
1153 C2V_END
1154 
1155 C2V_VMENTRY(void, resolveInvokeDynamicInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1156   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1157   CallInfo callInfo;
1158   LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokedynamic, CHECK);
1159   ConstantPoolCacheEntry* cp_cache_entry = cp->invokedynamic_cp_cache_entry_at(index);
1160   cp_cache_entry->set_dynamic_call(cp, callInfo);
1161 C2V_END
1162 
1163 C2V_VMENTRY(void, resolveInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1164   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1165   Klass* holder = cp->klass_ref_at(index, CHECK);
1166   Symbol* name = cp->name_ref_at(index);
1167   if (MethodHandles::is_signature_polymorphic_name(holder, name)) {
1168     CallInfo callInfo;
1169     LinkResolver::resolve_invoke(callInfo, Handle(), cp, index, Bytecodes::_invokehandle, CHECK);
1170     ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1171     cp_cache_entry->set_method_handle(cp, callInfo);
1172   }
1173 C2V_END
1174 
1175 C2V_VMENTRY(jint, isResolvedInvokeHandleInPool, (JNIEnv*, jobject, jobject jvmci_constant_pool, jint index))
1176   constantPoolHandle cp = CompilerToVM::asConstantPool(jvmci_constant_pool);
1177   ConstantPoolCacheEntry* cp_cache_entry = cp->cache()->entry_at(cp->decode_cpcache_index(index));
1178   if (cp_cache_entry->is_resolved(Bytecodes::_invokehandle)) {
1179     // MethodHandle.invoke* --> LambdaForm?
1180     ResourceMark rm;
1181 
1182     LinkInfo link_info(cp, index, CATCH);
1183 
1184     Klass* resolved_klass = link_info.resolved_klass();
1185 
1186     Symbol* name_sym = cp->name_ref_at(index);
1187 
1188     vmassert(MethodHandles::is_method_handle_invoke_name(resolved_klass, name_sym), "!");
1189     vmassert(MethodHandles::is_signature_polymorphic_name(resolved_klass, name_sym), "!");
1190 
1191     methodHandle adapter_method(cp_cache_entry->f1_as_method());
1192 
1193     methodHandle resolved_method(adapter_method);
1194 
1195     // Can we treat it as a regular invokevirtual?
1196     if (resolved_method->method_holder() == resolved_klass && resolved_method->name() == name_sym) {
1197       vmassert(!resolved_method->is_static(),"!");
1198       vmassert(MethodHandles::is_signature_polymorphic_method(resolved_method()),"!");
1199       vmassert(!MethodHandles::is_signature_polymorphic_static(resolved_method->intrinsic_id()), "!");
1200       vmassert(cp_cache_entry->appendix_if_resolved(cp) == NULL, "!");
1201       vmassert(cp_cache_entry->method_type_if_resolved(cp) == NULL, "!");
1202 
1203       methodHandle m(LinkResolver::linktime_resolve_virtual_method_or_null(link_info));
1204       vmassert(m == resolved_method, "!!");
1205       return -1;
1206     }
1207 
1208     return Bytecodes::_invokevirtual;
1209   }
1210   if (cp_cache_entry->is_resolved(Bytecodes::_invokedynamic)) {
1211     return Bytecodes::_invokedynamic;
1212   }
1213   return -1;
1214 C2V_END
1215 
1216 
1217 C2V_VMENTRY(jobject, getSignaturePolymorphicHolders, (JNIEnv*, jobject))
1218   objArrayHandle holders = oopFactory::new_objArray_handle(SystemDictionary::String_klass(), 2, CHECK_NULL);
1219   Handle mh = java_lang_String::create_from_str("Ljava/lang/invoke/MethodHandle;", CHECK_NULL);
1220   Handle vh = java_lang_String::create_from_str("Ljava/lang/invoke/VarHandle;", CHECK_NULL);
1221   holders->obj_at_put(0, mh());
1222   holders->obj_at_put(1, vh());
1223   return JNIHandles::make_local(THREAD, holders());
1224 C2V_END
1225 
1226 C2V_VMENTRY(jboolean, shouldDebugNonSafepoints, (JNIEnv*, jobject))
1227   //see compute_recording_non_safepoints in debugInfroRec.cpp
1228   if (JvmtiExport::should_post_compiled_method_load() && FLAG_IS_DEFAULT(DebugNonSafepoints)) {
1229     return true;
1230   }
1231   return DebugNonSafepoints;
1232 C2V_END
1233 
1234 // public native void materializeVirtualObjects(HotSpotStackFrameReference stackFrame, boolean invalidate);
1235 C2V_VMENTRY(void, materializeVirtualObjects, (JNIEnv*, jobject, jobject hs_frame, bool invalidate))
1236   ResourceMark rm;
1237 
1238   if (hs_frame == NULL) {
1239     THROW_MSG(vmSymbols::java_lang_NullPointerException(), "stack frame is null")
1240   }
1241 
1242   HotSpotStackFrameReference::klass()->initialize(CHECK);
1243 
1244   // look for the given stack frame
1245   StackFrameStream fst(thread);
1246   intptr_t* stack_pointer = (intptr_t*) HotSpotStackFrameReference::stackPointer(hs_frame);
1247   while (fst.current()->sp() != stack_pointer && !fst.is_done()) {
1248     fst.next();
1249   }
1250   if (fst.current()->sp() != stack_pointer) {
1251     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found")
1252   }
1253 
1254   if (invalidate) {
1255     if (!fst.current()->is_compiled_frame()) {
1256       THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1257     }
1258     assert(fst.current()->cb()->is_nmethod(), "nmethod expected");
1259     ((nmethod*) fst.current()->cb())->make_not_entrant();
1260   }
1261   Deoptimization::deoptimize(thread, *fst.current(), fst.register_map(), Deoptimization::Reason_none);
1262   // look for the frame again as it has been updated by deopt (pc, deopt state...)
1263   StackFrameStream fstAfterDeopt(thread);
1264   while (fstAfterDeopt.current()->sp() != stack_pointer && !fstAfterDeopt.is_done()) {
1265     fstAfterDeopt.next();
1266   }
1267   if (fstAfterDeopt.current()->sp() != stack_pointer) {
1268     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "stack frame not found after deopt")
1269   }
1270 
1271   vframe* vf = vframe::new_vframe(fstAfterDeopt.current(), fstAfterDeopt.register_map(), thread);
1272   if (!vf->is_compiled_frame()) {
1273     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "compiled stack frame expected")
1274   }
1275 
1276   GrowableArray<compiledVFrame*>* virtualFrames = new GrowableArray<compiledVFrame*>(10);
1277   while (true) {
1278     assert(vf->is_compiled_frame(), "Wrong frame type");
1279     virtualFrames->push(compiledVFrame::cast(vf));
1280     if (vf->is_top()) {
1281       break;
1282     }
1283     vf = vf->sender();
1284   }
1285 
1286   int last_frame_number = HotSpotStackFrameReference::frameNumber(hs_frame);
1287   if (last_frame_number >= virtualFrames->length()) {
1288     THROW_MSG(vmSymbols::java_lang_IllegalStateException(), "invalid frame number")
1289   }
1290 
1291   // Reallocate the non-escaping objects and restore their fields.
1292   assert (virtualFrames->at(last_frame_number)->scope() != NULL,"invalid scope");
1293   GrowableArray<ScopeValue*>* objects = virtualFrames->at(last_frame_number)->scope()->objects();
1294 
1295   if (objects == NULL) {
1296     // no objects to materialize
1297     return;
1298   }
1299 
1300   bool realloc_failures = Deoptimization::realloc_objects(thread, fstAfterDeopt.current(), objects, CHECK);
1301   Deoptimization::reassign_fields(fstAfterDeopt.current(), fstAfterDeopt.register_map(), objects, realloc_failures, false);
1302 
1303   for (int frame_index = 0; frame_index < virtualFrames->length(); frame_index++) {
1304     compiledVFrame* cvf = virtualFrames->at(frame_index);
1305 
1306     GrowableArray<ScopeValue*>* scopeLocals = cvf->scope()->locals();
1307     StackValueCollection* locals = cvf->locals();
1308     if (locals != NULL) {
1309       for (int i2 = 0; i2 < locals->size(); i2++) {
1310         StackValue* var = locals->at(i2);
1311         if (var->type() == T_OBJECT && scopeLocals->at(i2)->is_object()) {
1312           jvalue val;
1313           val.l = (jobject) locals->at(i2)->get_obj()();
1314           cvf->update_local(T_OBJECT, i2, val);
1315         }
1316       }
1317     }
1318 
1319     GrowableArray<ScopeValue*>* scopeExpressions = cvf->scope()->expressions();
1320     StackValueCollection* expressions = cvf->expressions();
1321     if (expressions != NULL) {
1322       for (int i2 = 0; i2 < expressions->size(); i2++) {
1323         StackValue* var = expressions->at(i2);
1324         if (var->type() == T_OBJECT && scopeExpressions->at(i2)->is_object()) {
1325           jvalue val;
1326           val.l = (jobject) expressions->at(i2)->get_obj()();
1327           cvf->update_stack(T_OBJECT, i2, val);
1328         }
1329       }
1330     }
1331 
1332     GrowableArray<MonitorValue*>* scopeMonitors = cvf->scope()->monitors();
1333     GrowableArray<MonitorInfo*>* monitors = cvf->monitors();
1334     if (monitors != NULL) {
1335       for (int i2 = 0; i2 < monitors->length(); i2++) {
1336         cvf->update_monitor(i2, monitors->at(i2));
1337       }
1338     }
1339   }
1340 
1341   // all locals are materialized by now
1342   HotSpotStackFrameReference::set_localIsVirtual(hs_frame, NULL);
1343 
1344   // update the locals array
1345   objArrayHandle array(THREAD, HotSpotStackFrameReference::locals(hs_frame));
1346   StackValueCollection* locals = virtualFrames->at(last_frame_number)->locals();
1347   for (int i = 0; i < locals->size(); i++) {
1348     StackValue* var = locals->at(i);
1349     if (var->type() == T_OBJECT) {
1350       array->obj_at_put(i, locals->at(i)->get_obj()());
1351     }
1352   }
1353   HotSpotStackFrameReference::set_objectsMaterialized(hs_frame, JNI_TRUE);
1354 C2V_END
1355 
1356 C2V_VMENTRY(void, writeDebugOutput, (JNIEnv*, jobject, jbyteArray bytes, jint offset, jint length))
1357   if (bytes == NULL) {
1358     THROW(vmSymbols::java_lang_NullPointerException());
1359   }
1360   typeArrayOop array = (typeArrayOop) JNIHandles::resolve(bytes);
1361 
1362   // Check if offset and length are non negative.
1363   if (offset < 0 || length < 0) {
1364     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1365   }
1366   // Check if the range is valid.
1367   if ((((unsigned int) length + (unsigned int) offset) > (unsigned int) array->length())) {
1368     THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException());
1369   }
1370   while (length > 0) {
1371     jbyte* start = array->byte_at_addr(offset);
1372     tty->write((char*) start, MIN2(length, (jint)O_BUFLEN));
1373     length -= O_BUFLEN;
1374     offset += O_BUFLEN;
1375   }
1376 C2V_END
1377 
1378 C2V_VMENTRY(void, flushDebugOutput, (JNIEnv*, jobject))
1379   tty->flush();
1380 C2V_END
1381 
1382 C2V_VMENTRY(int, methodDataProfileDataSize, (JNIEnv*, jobject, jlong metaspace_method_data, jint position))
1383   ResourceMark rm;
1384   MethodData* mdo = CompilerToVM::asMethodData(metaspace_method_data);
1385   ProfileData* profile_data = mdo->data_at(position);
1386   if (mdo->is_valid(profile_data)) {
1387     return profile_data->size_in_bytes();
1388   }
1389   DataLayout* data    = mdo->extra_data_base();
1390   DataLayout* end   = mdo->extra_data_limit();
1391   for (;; data = mdo->next_extra(data)) {
1392     assert(data < end, "moved past end of extra data");
1393     profile_data = data->data_in();
1394     if (mdo->dp_to_di(profile_data->dp()) == position) {
1395       return profile_data->size_in_bytes();
1396     }
1397   }
1398   THROW_MSG_0(vmSymbols::java_lang_IllegalArgumentException(), err_msg("Invalid profile data position %d", position));
1399 C2V_END
1400 
1401 C2V_VMENTRY(jlong, getFingerprint, (JNIEnv*, jobject, jlong metaspace_klass))
1402   Klass *k = CompilerToVM::asKlass(metaspace_klass);
1403   if (k->is_instance_klass()) {
1404     return InstanceKlass::cast(k)->get_stored_fingerprint();
1405   } else {
1406     return 0;
1407   }
1408 C2V_END
1409 
1410 C2V_VMENTRY(jobject, getHostClass, (JNIEnv*, jobject, jobject jvmci_type))
1411   InstanceKlass* k = InstanceKlass::cast(CompilerToVM::asKlass(jvmci_type));
1412   InstanceKlass* host = k->host_klass();
1413   oop result = CompilerToVM::get_jvmci_type(host, CHECK_NULL);
1414   return JNIHandles::make_local(THREAD, result);
1415 C2V_END
1416 
1417 C2V_VMENTRY(int, interpreterFrameSize, (JNIEnv*, jobject, jobject bytecode_frame_handle))
1418   if (bytecode_frame_handle == NULL) {
1419     THROW_0(vmSymbols::java_lang_NullPointerException());
1420   }
1421 
1422   oop top_bytecode_frame = JNIHandles::resolve_non_null(bytecode_frame_handle);
1423   oop bytecode_frame = top_bytecode_frame;
1424   int size = 0;
1425   int callee_parameters = 0;
1426   int callee_locals = 0;
1427   Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame));
1428   int extra_args = method->max_stack() - BytecodeFrame::numStack(bytecode_frame);
1429 
1430   while (bytecode_frame != NULL) {
1431     int locks = BytecodeFrame::numLocks(bytecode_frame);
1432     int temps = BytecodeFrame::numStack(bytecode_frame);
1433     bool is_top_frame = (bytecode_frame == top_bytecode_frame);
1434     Method* method = getMethodFromHotSpotMethod(BytecodePosition::method(bytecode_frame));
1435 
1436     int frame_size = BytesPerWord * Interpreter::size_activation(method->max_stack(),
1437                                                                  temps + callee_parameters,
1438                                                                  extra_args,
1439                                                                  locks,
1440                                                                  callee_parameters,
1441                                                                  callee_locals,
1442                                                                  is_top_frame);
1443     size += frame_size;
1444 
1445     callee_parameters = method->size_of_parameters();
1446     callee_locals = method->max_locals();
1447     extra_args = 0;
1448     bytecode_frame = BytecodePosition::caller(bytecode_frame);
1449   }
1450   return size + Deoptimization::last_frame_adjust(0, callee_locals) * BytesPerWord;
1451 C2V_END
1452 
1453 C2V_VMENTRY(void, compileToBytecode, (JNIEnv*, jobject, jobject lambda_form_handle))
1454   Handle lambda_form(THREAD, JNIHandles::resolve_non_null(lambda_form_handle));
1455   if (lambda_form->is_a(SystemDictionary::LambdaForm_klass())) {
1456     TempNewSymbol compileToBytecode = SymbolTable::new_symbol("compileToBytecode", CHECK);
1457     JavaValue result(T_VOID);
1458     JavaCalls::call_special(&result, lambda_form, SystemDictionary::LambdaForm_klass(), compileToBytecode, vmSymbols::void_method_signature(), CHECK);
1459   } else {
1460     THROW_MSG(vmSymbols::java_lang_IllegalArgumentException(),
1461                 err_msg("Unexpected type: %s", lambda_form->klass()->external_name()));
1462   }
1463 C2V_END
1464 
1465 #define CC (char*)  /*cast a literal from (const char*)*/
1466 #define FN_PTR(f) CAST_FROM_FN_PTR(void*, &(c2v_ ## f))
1467 
1468 #define STRING                  "Ljava/lang/String;"
1469 #define OBJECT                  "Ljava/lang/Object;"
1470 #define CLASS                   "Ljava/lang/Class;"
1471 #define EXECUTABLE              "Ljava/lang/reflect/Executable;"
1472 #define STACK_TRACE_ELEMENT     "Ljava/lang/StackTraceElement;"
1473 #define INSTALLED_CODE          "Ljdk/vm/ci/code/InstalledCode;"
1474 #define TARGET_DESCRIPTION      "Ljdk/vm/ci/code/TargetDescription;"
1475 #define BYTECODE_FRAME          "Ljdk/vm/ci/code/BytecodeFrame;"
1476 #define INSPECTED_FRAME_VISITOR "Ljdk/vm/ci/code/stack/InspectedFrameVisitor;"
1477 #define RESOLVED_METHOD         "Ljdk/vm/ci/meta/ResolvedJavaMethod;"
1478 #define HS_RESOLVED_METHOD      "Ljdk/vm/ci/hotspot/HotSpotResolvedJavaMethodImpl;"
1479 #define HS_RESOLVED_KLASS       "Ljdk/vm/ci/hotspot/HotSpotResolvedObjectTypeImpl;"
1480 #define HS_CONSTANT_POOL        "Ljdk/vm/ci/hotspot/HotSpotConstantPool;"
1481 #define HS_COMPILED_CODE        "Ljdk/vm/ci/hotspot/HotSpotCompiledCode;"
1482 #define HS_CONFIG               "Ljdk/vm/ci/hotspot/HotSpotVMConfig;"
1483 #define HS_METADATA             "Ljdk/vm/ci/hotspot/HotSpotMetaData;"
1484 #define HS_STACK_FRAME_REF      "Ljdk/vm/ci/hotspot/HotSpotStackFrameReference;"
1485 #define HS_SPECULATION_LOG      "Ljdk/vm/ci/hotspot/HotSpotSpeculationLog;"
1486 #define METASPACE_METHOD_DATA   "J"
1487 
1488 JNINativeMethod CompilerToVM::methods[] = {
1489   {CC "getBytecode",                                  CC "(" HS_RESOLVED_METHOD ")[B",                                                      FN_PTR(getBytecode)},
1490   {CC "getExceptionTableStart",                       CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getExceptionTableStart)},
1491   {CC "getExceptionTableLength",                      CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getExceptionTableLength)},
1492   {CC "findUniqueConcreteMethod",                     CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")" HS_RESOLVED_METHOD,                   FN_PTR(findUniqueConcreteMethod)},
1493   {CC "getImplementor",                               CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getImplementor)},
1494   {CC "getStackTraceElement",                         CC "(" HS_RESOLVED_METHOD "I)" STACK_TRACE_ELEMENT,                                   FN_PTR(getStackTraceElement)},
1495   {CC "methodIsIgnoredBySecurityStackWalk",           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(methodIsIgnoredBySecurityStackWalk)},
1496   {CC "setNotInlinableOrCompilable",                  CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(setNotInlinableOrCompilable)},
1497   {CC "isCompilable",                                 CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(isCompilable)},
1498   {CC "hasNeverInlineDirective",                      CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(hasNeverInlineDirective)},
1499   {CC "shouldInlineMethod",                           CC "(" HS_RESOLVED_METHOD ")Z",                                                       FN_PTR(shouldInlineMethod)},
1500   {CC "lookupType",                                   CC "(" STRING CLASS "Z)" HS_RESOLVED_KLASS,                                           FN_PTR(lookupType)},
1501   {CC "lookupNameInPool",                             CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupNameInPool)},
1502   {CC "lookupNameAndTypeRefIndexInPool",              CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupNameAndTypeRefIndexInPool)},
1503   {CC "lookupSignatureInPool",                        CC "(" HS_CONSTANT_POOL "I)" STRING,                                                  FN_PTR(lookupSignatureInPool)},
1504   {CC "lookupKlassRefIndexInPool",                    CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(lookupKlassRefIndexInPool)},
1505   {CC "lookupKlassInPool",                            CC "(" HS_CONSTANT_POOL "I)Ljava/lang/Object;",                                       FN_PTR(lookupKlassInPool)},
1506   {CC "lookupAppendixInPool",                         CC "(" HS_CONSTANT_POOL "I)" OBJECT,                                                  FN_PTR(lookupAppendixInPool)},
1507   {CC "lookupMethodInPool",                           CC "(" HS_CONSTANT_POOL "IB)" HS_RESOLVED_METHOD,                                     FN_PTR(lookupMethodInPool)},
1508   {CC "constantPoolRemapInstructionOperandFromCache", CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(constantPoolRemapInstructionOperandFromCache)},
1509   {CC "resolveConstantInPool",                        CC "(" HS_CONSTANT_POOL "I)" OBJECT,                                                  FN_PTR(resolveConstantInPool)},
1510   {CC "resolvePossiblyCachedConstantInPool",          CC "(" HS_CONSTANT_POOL "I)" OBJECT,                                                  FN_PTR(resolvePossiblyCachedConstantInPool)},
1511   {CC "resolveTypeInPool",                            CC "(" HS_CONSTANT_POOL "I)" HS_RESOLVED_KLASS,                                       FN_PTR(resolveTypeInPool)},
1512   {CC "resolveFieldInPool",                           CC "(" HS_CONSTANT_POOL "I" HS_RESOLVED_METHOD "B[I)" HS_RESOLVED_KLASS,              FN_PTR(resolveFieldInPool)},
1513   {CC "resolveInvokeDynamicInPool",                   CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeDynamicInPool)},
1514   {CC "resolveInvokeHandleInPool",                    CC "(" HS_CONSTANT_POOL "I)V",                                                        FN_PTR(resolveInvokeHandleInPool)},
1515   {CC "isResolvedInvokeHandleInPool",                 CC "(" HS_CONSTANT_POOL "I)I",                                                        FN_PTR(isResolvedInvokeHandleInPool)},
1516   {CC "resolveMethod",                                CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD, FN_PTR(resolveMethod)},
1517   {CC "getSignaturePolymorphicHolders",               CC "()[" STRING,                                                                      FN_PTR(getSignaturePolymorphicHolders)},
1518   {CC "getVtableIndexForInterfaceMethod",             CC "(" HS_RESOLVED_KLASS HS_RESOLVED_METHOD ")I",                                     FN_PTR(getVtableIndexForInterfaceMethod)},
1519   {CC "getClassInitializer",                          CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_METHOD,                                      FN_PTR(getClassInitializer)},
1520   {CC "hasFinalizableSubclass",                       CC "(" HS_RESOLVED_KLASS ")Z",                                                        FN_PTR(hasFinalizableSubclass)},
1521   {CC "getMaxCallTargetOffset",                       CC "(J)J",                                                                            FN_PTR(getMaxCallTargetOffset)},
1522   {CC "asResolvedJavaMethod",                         CC "(" EXECUTABLE ")" HS_RESOLVED_METHOD,                                             FN_PTR(asResolvedJavaMethod)},
1523   {CC "getResolvedJavaMethod",                        CC "(Ljava/lang/Object;J)" HS_RESOLVED_METHOD,                                        FN_PTR(getResolvedJavaMethod)},
1524   {CC "getConstantPool",                              CC "(Ljava/lang/Object;)" HS_CONSTANT_POOL,                                           FN_PTR(getConstantPool)},
1525   {CC "getResolvedJavaType",                          CC "(Ljava/lang/Object;JZ)" HS_RESOLVED_KLASS,                                        FN_PTR(getResolvedJavaType)},
1526   {CC "readConfiguration",                            CC "()[" OBJECT,                                                                      FN_PTR(readConfiguration)},
1527   {CC "installCode",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE INSTALLED_CODE HS_SPECULATION_LOG ")I",    FN_PTR(installCode)},
1528   {CC "getMetadata",                                  CC "(" TARGET_DESCRIPTION HS_COMPILED_CODE HS_METADATA ")I",                          FN_PTR(getMetadata)},
1529   {CC "resetCompilationStatistics",                   CC "()V",                                                                             FN_PTR(resetCompilationStatistics)},
1530   {CC "disassembleCodeBlob",                          CC "(" INSTALLED_CODE ")" STRING,                                                     FN_PTR(disassembleCodeBlob)},
1531   {CC "executeInstalledCode",                         CC "([" OBJECT INSTALLED_CODE ")" OBJECT,                                             FN_PTR(executeInstalledCode)},
1532   {CC "getLineNumberTable",                           CC "(" HS_RESOLVED_METHOD ")[J",                                                      FN_PTR(getLineNumberTable)},
1533   {CC "getLocalVariableTableStart",                   CC "(" HS_RESOLVED_METHOD ")J",                                                       FN_PTR(getLocalVariableTableStart)},
1534   {CC "getLocalVariableTableLength",                  CC "(" HS_RESOLVED_METHOD ")I",                                                       FN_PTR(getLocalVariableTableLength)},
1535   {CC "reprofile",                                    CC "(" HS_RESOLVED_METHOD ")V",                                                       FN_PTR(reprofile)},
1536   {CC "invalidateInstalledCode",                      CC "(" INSTALLED_CODE ")V",                                                           FN_PTR(invalidateInstalledCode)},
1537   {CC "collectCounters",                              CC "()[J",                                                                            FN_PTR(collectCounters)},
1538   {CC "allocateCompileId",                            CC "(" HS_RESOLVED_METHOD "I)I",                                                      FN_PTR(allocateCompileId)},
1539   {CC "isMature",                                     CC "(" METASPACE_METHOD_DATA ")Z",                                                    FN_PTR(isMature)},
1540   {CC "hasCompiledCodeForOSR",                        CC "(" HS_RESOLVED_METHOD "II)Z",                                                     FN_PTR(hasCompiledCodeForOSR)},
1541   {CC "getSymbol",                                    CC "(J)" STRING,                                                                      FN_PTR(getSymbol)},
1542   {CC "iterateFrames",                                CC "([" RESOLVED_METHOD "[" RESOLVED_METHOD "I" INSPECTED_FRAME_VISITOR ")" OBJECT,   FN_PTR(iterateFrames)},
1543   {CC "materializeVirtualObjects",                    CC "(" HS_STACK_FRAME_REF "Z)V",                                                      FN_PTR(materializeVirtualObjects)},
1544   {CC "shouldDebugNonSafepoints",                     CC "()Z",                                                                             FN_PTR(shouldDebugNonSafepoints)},
1545   {CC "writeDebugOutput",                             CC "([BII)V",                                                                         FN_PTR(writeDebugOutput)},
1546   {CC "flushDebugOutput",                             CC "()V",                                                                             FN_PTR(flushDebugOutput)},
1547   {CC "methodDataProfileDataSize",                    CC "(JI)I",                                                                           FN_PTR(methodDataProfileDataSize)},
1548   {CC "getFingerprint",                               CC "(J)J",                                                                            FN_PTR(getFingerprint)},
1549   {CC "getHostClass",                                 CC "(" HS_RESOLVED_KLASS ")" HS_RESOLVED_KLASS,                                       FN_PTR(getHostClass)},
1550   {CC "interpreterFrameSize",                         CC "(" BYTECODE_FRAME ")I",                                                           FN_PTR(interpreterFrameSize)},
1551   {CC "compileToBytecode",                            CC "(" OBJECT ")V",                                                                   FN_PTR(compileToBytecode)},
1552   {CC "getFlagValue",                                 CC "(" STRING ")" OBJECT,                                                             FN_PTR(getFlagValue)},
1553 };
1554 
1555 int CompilerToVM::methods_count() {
1556   return sizeof(methods) / sizeof(JNINativeMethod);
1557 }