hotspot/src/share/vm/interpreter/interpreterRuntime.cpp
changeset 13728 882756847a04
parent 13391 30245956af37
child 13740 ae6179641137
equal deleted inserted replaced
13727:caf5eb7dd4a7 13728:882756847a04
    31 #include "interpreter/interpreterRuntime.hpp"
    31 #include "interpreter/interpreterRuntime.hpp"
    32 #include "interpreter/linkResolver.hpp"
    32 #include "interpreter/linkResolver.hpp"
    33 #include "interpreter/templateTable.hpp"
    33 #include "interpreter/templateTable.hpp"
    34 #include "memory/oopFactory.hpp"
    34 #include "memory/oopFactory.hpp"
    35 #include "memory/universe.inline.hpp"
    35 #include "memory/universe.inline.hpp"
    36 #include "oops/constantPoolOop.hpp"
    36 #include "oops/constantPool.hpp"
    37 #include "oops/cpCacheOop.hpp"
       
    38 #include "oops/instanceKlass.hpp"
    37 #include "oops/instanceKlass.hpp"
    39 #include "oops/methodDataOop.hpp"
    38 #include "oops/methodData.hpp"
    40 #include "oops/objArrayKlass.hpp"
    39 #include "oops/objArrayKlass.hpp"
    41 #include "oops/oop.inline.hpp"
    40 #include "oops/oop.inline.hpp"
    42 #include "oops/symbol.hpp"
    41 #include "oops/symbol.hpp"
    43 #include "prims/jvmtiExport.hpp"
    42 #include "prims/jvmtiExport.hpp"
    44 #include "prims/nativeLookup.hpp"
    43 #include "prims/nativeLookup.hpp"
    96 void InterpreterRuntime::set_bcp_and_mdp(address bcp, JavaThread *thread) {
    95 void InterpreterRuntime::set_bcp_and_mdp(address bcp, JavaThread *thread) {
    97   last_frame(thread).interpreter_frame_set_bcp(bcp);
    96   last_frame(thread).interpreter_frame_set_bcp(bcp);
    98   if (ProfileInterpreter) {
    97   if (ProfileInterpreter) {
    99     // ProfileTraps uses MDOs independently of ProfileInterpreter.
    98     // ProfileTraps uses MDOs independently of ProfileInterpreter.
   100     // That is why we must check both ProfileInterpreter and mdo != NULL.
    99     // That is why we must check both ProfileInterpreter and mdo != NULL.
   101     methodDataOop mdo = last_frame(thread).interpreter_frame_method()->method_data();
   100     MethodData* mdo = last_frame(thread).interpreter_frame_method()->method_data();
   102     if (mdo != NULL) {
   101     if (mdo != NULL) {
   103       NEEDS_CLEANUP;
   102       NEEDS_CLEANUP;
   104       last_frame(thread).interpreter_frame_set_mdp(mdo->bci_to_dp(last_frame(thread).interpreter_frame_bci()));
   103       last_frame(thread).interpreter_frame_set_mdp(mdo->bci_to_dp(last_frame(thread).interpreter_frame_bci()));
   105     }
   104     }
   106   }
   105   }
   110 // Constants
   109 // Constants
   111 
   110 
   112 
   111 
   113 IRT_ENTRY(void, InterpreterRuntime::ldc(JavaThread* thread, bool wide))
   112 IRT_ENTRY(void, InterpreterRuntime::ldc(JavaThread* thread, bool wide))
   114   // access constant pool
   113   // access constant pool
   115   constantPoolOop pool = method(thread)->constants();
   114   ConstantPool* pool = method(thread)->constants();
   116   int index = wide ? get_index_u2(thread, Bytecodes::_ldc_w) : get_index_u1(thread, Bytecodes::_ldc);
   115   int index = wide ? get_index_u2(thread, Bytecodes::_ldc_w) : get_index_u1(thread, Bytecodes::_ldc);
   117   constantTag tag = pool->tag_at(index);
   116   constantTag tag = pool->tag_at(index);
   118 
   117 
   119   if (tag.is_unresolved_klass() || tag.is_klass()) {
   118   assert (tag.is_unresolved_klass() || tag.is_klass(), "wrong ldc call");
   120     klassOop klass = pool->klass_at(index, CHECK);
   119   Klass* klass = pool->klass_at(index, CHECK);
   121     oop java_class = klass->java_mirror();
   120     oop java_class = klass->java_mirror();
   122     thread->set_vm_result(java_class);
   121     thread->set_vm_result(java_class);
   123   } else {
       
   124 #ifdef ASSERT
       
   125     // If we entered this runtime routine, we believed the tag contained
       
   126     // an unresolved string, an unresolved class or a resolved class.
       
   127     // However, another thread could have resolved the unresolved string
       
   128     // or class by the time we go there.
       
   129     assert(tag.is_unresolved_string()|| tag.is_string(), "expected string");
       
   130 #endif
       
   131     oop s_oop = pool->string_at(index, CHECK);
       
   132     thread->set_vm_result(s_oop);
       
   133   }
       
   134 IRT_END
   122 IRT_END
   135 
   123 
   136 IRT_ENTRY(void, InterpreterRuntime::resolve_ldc(JavaThread* thread, Bytecodes::Code bytecode)) {
   124 IRT_ENTRY(void, InterpreterRuntime::resolve_ldc(JavaThread* thread, Bytecodes::Code bytecode)) {
   137   assert(bytecode == Bytecodes::_fast_aldc ||
   125   assert(bytecode == Bytecodes::_fast_aldc ||
   138          bytecode == Bytecodes::_fast_aldc_w, "wrong bc");
   126          bytecode == Bytecodes::_fast_aldc_w, "wrong bc");
   142   oop result = ldc.resolve_constant(CHECK);
   130   oop result = ldc.resolve_constant(CHECK);
   143 #ifdef ASSERT
   131 #ifdef ASSERT
   144   {
   132   {
   145     // The bytecode wrappers aren't GC-safe so construct a new one
   133     // The bytecode wrappers aren't GC-safe so construct a new one
   146     Bytecode_loadconstant ldc2(m, bci(thread));
   134     Bytecode_loadconstant ldc2(m, bci(thread));
   147     ConstantPoolCacheEntry* cpce = m->constants()->cache()->entry_at(ldc2.cache_index());
   135     oop coop = m->constants()->resolved_references()->obj_at(ldc2.cache_index());
   148     assert(result == cpce->f1_as_instance(), "expected result for assembly code");
   136     assert(result == coop, "expected result for assembly code");
   149   }
   137   }
   150 #endif
   138 #endif
       
   139   thread->set_vm_result(result);
   151 }
   140 }
   152 IRT_END
   141 IRT_END
   153 
   142 
   154 
   143 
   155 //------------------------------------------------------------------------------------------------------------------------
   144 //------------------------------------------------------------------------------------------------------------------------
   156 // Allocation
   145 // Allocation
   157 
   146 
   158 IRT_ENTRY(void, InterpreterRuntime::_new(JavaThread* thread, constantPoolOopDesc* pool, int index))
   147 IRT_ENTRY(void, InterpreterRuntime::_new(JavaThread* thread, ConstantPool* pool, int index))
   159   klassOop k_oop = pool->klass_at(index, CHECK);
   148   Klass* k_oop = pool->klass_at(index, CHECK);
   160   instanceKlassHandle klass (THREAD, k_oop);
   149   instanceKlassHandle klass (THREAD, k_oop);
   161 
   150 
   162   // Make sure we are not instantiating an abstract klass
   151   // Make sure we are not instantiating an abstract klass
   163   klass->check_valid_for_instantiation(true, CHECK);
   152   klass->check_valid_for_instantiation(true, CHECK);
   164 
   153 
   188   oop obj = oopFactory::new_typeArray(type, size, CHECK);
   177   oop obj = oopFactory::new_typeArray(type, size, CHECK);
   189   thread->set_vm_result(obj);
   178   thread->set_vm_result(obj);
   190 IRT_END
   179 IRT_END
   191 
   180 
   192 
   181 
   193 IRT_ENTRY(void, InterpreterRuntime::anewarray(JavaThread* thread, constantPoolOopDesc* pool, int index, jint size))
   182 IRT_ENTRY(void, InterpreterRuntime::anewarray(JavaThread* thread, ConstantPool* pool, int index, jint size))
   194   // Note: no oopHandle for pool & klass needed since they are not used
   183   // Note: no oopHandle for pool & klass needed since they are not used
   195   //       anymore after new_objArray() and no GC can happen before.
   184   //       anymore after new_objArray() and no GC can happen before.
   196   //       (This may have to change if this code changes!)
   185   //       (This may have to change if this code changes!)
   197   klassOop  klass = pool->klass_at(index, CHECK);
   186   Klass*    klass = pool->klass_at(index, CHECK);
   198   objArrayOop obj = oopFactory::new_objArray(klass, size, CHECK);
   187   objArrayOop obj = oopFactory::new_objArray(klass, size, CHECK);
   199   thread->set_vm_result(obj);
   188   thread->set_vm_result(obj);
   200 IRT_END
   189 IRT_END
   201 
   190 
   202 
   191 
   203 IRT_ENTRY(void, InterpreterRuntime::multianewarray(JavaThread* thread, jint* first_size_address))
   192 IRT_ENTRY(void, InterpreterRuntime::multianewarray(JavaThread* thread, jint* first_size_address))
   204   // We may want to pass in more arguments - could make this slightly faster
   193   // We may want to pass in more arguments - could make this slightly faster
   205   constantPoolOop constants = method(thread)->constants();
   194   ConstantPool* constants = method(thread)->constants();
   206   int          i = get_index_u2(thread, Bytecodes::_multianewarray);
   195   int          i = get_index_u2(thread, Bytecodes::_multianewarray);
   207   klassOop klass = constants->klass_at(i, CHECK);
   196   Klass* klass = constants->klass_at(i, CHECK);
   208   int   nof_dims = number_of_dimensions(thread);
   197   int   nof_dims = number_of_dimensions(thread);
   209   assert(oop(klass)->is_klass(), "not a class");
   198   assert(klass->is_klass(), "not a class");
   210   assert(nof_dims >= 1, "multianewarray rank must be nonzero");
   199   assert(nof_dims >= 1, "multianewarray rank must be nonzero");
   211 
   200 
   212   // We must create an array of jints to pass to multi_allocate.
   201   // We must create an array of jints to pass to multi_allocate.
   213   ResourceMark rm(thread);
   202   ResourceMark rm(thread);
   214   const int small_dims = 10;
   203   const int small_dims = 10;
   227 IRT_END
   216 IRT_END
   228 
   217 
   229 
   218 
   230 IRT_ENTRY(void, InterpreterRuntime::register_finalizer(JavaThread* thread, oopDesc* obj))
   219 IRT_ENTRY(void, InterpreterRuntime::register_finalizer(JavaThread* thread, oopDesc* obj))
   231   assert(obj->is_oop(), "must be a valid oop");
   220   assert(obj->is_oop(), "must be a valid oop");
   232   assert(obj->klass()->klass_part()->has_finalizer(), "shouldn't be here otherwise");
   221   assert(obj->klass()->has_finalizer(), "shouldn't be here otherwise");
   233   instanceKlass::register_finalizer(instanceOop(obj), CHECK);
   222   InstanceKlass::register_finalizer(instanceOop(obj), CHECK);
   234 IRT_END
   223 IRT_END
   235 
   224 
   236 
   225 
   237 // Quicken instance-of and check-cast bytecodes
   226 // Quicken instance-of and check-cast bytecodes
   238 IRT_ENTRY(void, InterpreterRuntime::quicken_io_cc(JavaThread* thread))
   227 IRT_ENTRY(void, InterpreterRuntime::quicken_io_cc(JavaThread* thread))
   239   // Force resolving; quicken the bytecode
   228   // Force resolving; quicken the bytecode
   240   int which = get_index_u2(thread, Bytecodes::_checkcast);
   229   int which = get_index_u2(thread, Bytecodes::_checkcast);
   241   constantPoolOop cpool = method(thread)->constants();
   230   ConstantPool* cpool = method(thread)->constants();
   242   // We'd expect to assert that we're only here to quicken bytecodes, but in a multithreaded
   231   // We'd expect to assert that we're only here to quicken bytecodes, but in a multithreaded
   243   // program we might have seen an unquick'd bytecode in the interpreter but have another
   232   // program we might have seen an unquick'd bytecode in the interpreter but have another
   244   // thread quicken the bytecode before we get here.
   233   // thread quicken the bytecode before we get here.
   245   // assert( cpool->tag_at(which).is_unresolved_klass(), "should only come here to quicken bytecodes" );
   234   // assert( cpool->tag_at(which).is_unresolved_klass(), "should only come here to quicken bytecodes" );
   246   klassOop klass = cpool->klass_at(which, CHECK);
   235   Klass* klass = cpool->klass_at(which, CHECK);
   247   thread->set_vm_result(klass);
   236   thread->set_vm_result_2(klass);
   248 IRT_END
   237 IRT_END
   249 
   238 
   250 
   239 
   251 //------------------------------------------------------------------------------------------------------------------------
   240 //------------------------------------------------------------------------------------------------------------------------
   252 // Exceptions
   241 // Exceptions
   256 void InterpreterRuntime::note_trap(JavaThread* thread, int reason, TRAPS) {
   245 void InterpreterRuntime::note_trap(JavaThread* thread, int reason, TRAPS) {
   257   assert(ProfileTraps, "call me only if profiling");
   246   assert(ProfileTraps, "call me only if profiling");
   258   methodHandle trap_method(thread, method(thread));
   247   methodHandle trap_method(thread, method(thread));
   259 
   248 
   260   if (trap_method.not_null()) {
   249   if (trap_method.not_null()) {
   261     methodDataHandle trap_mdo(thread, trap_method->method_data());
   250     MethodData* trap_mdo = trap_method->method_data();
   262     if (trap_mdo.is_null()) {
   251     if (trap_mdo == NULL) {
   263       methodOopDesc::build_interpreter_method_data(trap_method, THREAD);
   252       Method::build_interpreter_method_data(trap_method, THREAD);
   264       if (HAS_PENDING_EXCEPTION) {
   253       if (HAS_PENDING_EXCEPTION) {
   265         assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
   254         assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
   266         CLEAR_PENDING_EXCEPTION;
   255         CLEAR_PENDING_EXCEPTION;
   267       }
   256       }
   268       trap_mdo = methodDataHandle(thread, trap_method->method_data());
   257       trap_mdo = trap_method->method_data();
   269       // and fall through...
   258       // and fall through...
   270     }
   259     }
   271     if (trap_mdo.not_null()) {
   260     if (trap_mdo != NULL) {
   272       // Update per-method count of trap events.  The interpreter
   261       // Update per-method count of trap events.  The interpreter
   273       // is updating the MDO to simulate the effect of compiler traps.
   262       // is updating the MDO to simulate the effect of compiler traps.
   274       int trap_bci = trap_method->bci_from(bcp(thread));
   263       int trap_bci = trap_method->bci_from(bcp(thread));
   275       Deoptimization::update_method_data_from_interpreter(trap_mdo, trap_bci, reason);
   264       Deoptimization::update_method_data_from_interpreter(trap_mdo, trap_bci, reason);
   276     }
   265     }
   277   }
   266   }
   278 }
   267 }
   279 
   268 
   280 static Handle get_preinitialized_exception(klassOop k, TRAPS) {
   269 static Handle get_preinitialized_exception(Klass* k, TRAPS) {
   281   // get klass
   270   // get klass
   282   instanceKlass* klass = instanceKlass::cast(k);
   271   InstanceKlass* klass = InstanceKlass::cast(k);
   283   assert(klass->is_initialized(),
   272   assert(klass->is_initialized(),
   284          "this klass should have been initialized during VM initialization");
   273          "this klass should have been initialized during VM initialization");
   285   // create instance - do not call constructor since we may have no
   274   // create instance - do not call constructor since we may have no
   286   // (java) stack space left (should assert constructor is empty)
   275   // (java) stack space left (should assert constructor is empty)
   287   Handle exception;
   276   Handle exception;
   415       tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", h_exception->print_value_string(), (address)h_exception());
   404       tty->print_cr("Exception <%s> (" INTPTR_FORMAT ")", h_exception->print_value_string(), (address)h_exception());
   416       tty->print_cr(" thrown in interpreter method <%s>", h_method->print_value_string());
   405       tty->print_cr(" thrown in interpreter method <%s>", h_method->print_value_string());
   417       tty->print_cr(" at bci %d for thread " INTPTR_FORMAT, current_bci, thread);
   406       tty->print_cr(" at bci %d for thread " INTPTR_FORMAT, current_bci, thread);
   418     }
   407     }
   419 // Don't go paging in something which won't be used.
   408 // Don't go paging in something which won't be used.
   420 //     else if (h_extable->length() == 0) {
   409 //     else if (extable->length() == 0) {
   421 //       // disabled for now - interpreter is not using shortcut yet
   410 //       // disabled for now - interpreter is not using shortcut yet
   422 //       // (shortcut is not to call runtime if we have no exception handlers)
   411 //       // (shortcut is not to call runtime if we have no exception handlers)
   423 //       // warning("performance bug: should not call runtime if method has no exception handlers");
   412 //       // warning("performance bug: should not call runtime if method has no exception handlers");
   424 //     }
   413 //     }
   425     // for AbortVMOnException flag
   414     // for AbortVMOnException flag
   532 
   521 
   533   // We also need to delay resolving getstatic instructions until the
   522   // We also need to delay resolving getstatic instructions until the
   534   // class is intitialized.  This is required so that access to the static
   523   // class is intitialized.  This is required so that access to the static
   535   // field will call the initialization function every time until the class
   524   // field will call the initialization function every time until the class
   536   // is completely initialized ala. in 2.17.5 in JVM Specification.
   525   // is completely initialized ala. in 2.17.5 in JVM Specification.
   537   instanceKlass *klass = instanceKlass::cast(info.klass()->as_klassOop());
   526   InstanceKlass *klass = InstanceKlass::cast(info.klass()());
   538   bool uninitialized_static = ((bytecode == Bytecodes::_getstatic || bytecode == Bytecodes::_putstatic) &&
   527   bool uninitialized_static = ((bytecode == Bytecodes::_getstatic || bytecode == Bytecodes::_putstatic) &&
   539                                !klass->is_initialized());
   528                                !klass->is_initialized());
   540   Bytecodes::Code get_code = (Bytecodes::Code)0;
   529   Bytecodes::Code get_code = (Bytecodes::Code)0;
   541 
   530 
   542   if (!uninitialized_static) {
   531   if (!uninitialized_static) {
   552     info.klass(),
   541     info.klass(),
   553     info.field_index(),
   542     info.field_index(),
   554     info.field_offset(),
   543     info.field_offset(),
   555     state,
   544     state,
   556     info.access_flags().is_final(),
   545     info.access_flags().is_final(),
   557     info.access_flags().is_volatile()
   546     info.access_flags().is_volatile(),
       
   547     pool->pool_holder()
   558   );
   548   );
   559 IRT_END
   549 IRT_END
   560 
   550 
   561 
   551 
   562 //------------------------------------------------------------------------------------------------------------------------
   552 //------------------------------------------------------------------------------------------------------------------------
   642 
   632 
   643 
   633 
   644 //------------------------------------------------------------------------------------------------------------------------
   634 //------------------------------------------------------------------------------------------------------------------------
   645 // Invokes
   635 // Invokes
   646 
   636 
   647 IRT_ENTRY(Bytecodes::Code, InterpreterRuntime::get_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp))
   637 IRT_ENTRY(Bytecodes::Code, InterpreterRuntime::get_original_bytecode_at(JavaThread* thread, Method* method, address bcp))
   648   return method->orig_bytecode_at(method->bci_from(bcp));
   638   return method->orig_bytecode_at(method->bci_from(bcp));
   649 IRT_END
   639 IRT_END
   650 
   640 
   651 IRT_ENTRY(void, InterpreterRuntime::set_original_bytecode_at(JavaThread* thread, methodOopDesc* method, address bcp, Bytecodes::Code new_code))
   641 IRT_ENTRY(void, InterpreterRuntime::set_original_bytecode_at(JavaThread* thread, Method* method, address bcp, Bytecodes::Code new_code))
   652   method->set_orig_bytecode_at(method->bci_from(bcp), new_code);
   642   method->set_orig_bytecode_at(method->bci_from(bcp), new_code);
   653 IRT_END
   643 IRT_END
   654 
   644 
   655 IRT_ENTRY(void, InterpreterRuntime::_breakpoint(JavaThread* thread, methodOopDesc* method, address bcp))
   645 IRT_ENTRY(void, InterpreterRuntime::_breakpoint(JavaThread* thread, Method* method, address bcp))
   656   JvmtiExport::post_raw_breakpoint(thread, method, bcp);
   646   JvmtiExport::post_raw_breakpoint(thread, method, bcp);
   657 IRT_END
   647 IRT_END
   658 
   648 
   659 IRT_ENTRY(void, InterpreterRuntime::resolve_invoke(JavaThread* thread, Bytecodes::Code bytecode)) {
   649 IRT_ENTRY(void, InterpreterRuntime::resolve_invoke(JavaThread* thread, Bytecodes::Code bytecode)) {
   660   // extract receiver from the outgoing argument list if necessary
   650   // extract receiver from the outgoing argument list if necessary
   667     receiver = Handle(thread,
   657     receiver = Handle(thread,
   668                   thread->last_frame().interpreter_callee_receiver(signature));
   658                   thread->last_frame().interpreter_callee_receiver(signature));
   669     assert(Universe::heap()->is_in_reserved_or_null(receiver()),
   659     assert(Universe::heap()->is_in_reserved_or_null(receiver()),
   670            "sanity check");
   660            "sanity check");
   671     assert(receiver.is_null() ||
   661     assert(receiver.is_null() ||
   672            Universe::heap()->is_in_reserved(receiver->klass()),
   662            !Universe::heap()->is_in_reserved(receiver->klass()),
   673            "sanity check");
   663            "sanity check");
   674   }
   664   }
   675 
   665 
   676   // resolve method
   666   // resolve method
   677   CallInfo info;
   667   CallInfo info;
   743                                  get_index_u2_cpcache(thread, bytecode), bytecode, CHECK);
   733                                  get_index_u2_cpcache(thread, bytecode), bytecode, CHECK);
   744   } // end JvmtiHideSingleStepping
   734   } // end JvmtiHideSingleStepping
   745 
   735 
   746   cache_entry(thread)->set_method_handle(
   736   cache_entry(thread)->set_method_handle(
   747       info.resolved_method(),
   737       info.resolved_method(),
   748       info.resolved_appendix());
   738       info.resolved_appendix(),
       
   739       pool->resolved_references());
   749 }
   740 }
   750 IRT_END
   741 IRT_END
   751 
   742 
   752 
   743 
   753 // First time execution:  Resolve symbols, create a permanent CallSite object.
   744 // First time execution:  Resolve symbols, create a permanent CallSite object.
   760 
   751 
   761   // resolve method
   752   // resolve method
   762   CallInfo info;
   753   CallInfo info;
   763   constantPoolHandle pool(thread, method(thread)->constants());
   754   constantPoolHandle pool(thread, method(thread)->constants());
   764   int index = get_index_u4(thread, bytecode);
   755   int index = get_index_u4(thread, bytecode);
   765 
       
   766   {
   756   {
   767     JvmtiHideSingleStepping jhss(thread);
   757     JvmtiHideSingleStepping jhss(thread);
   768     LinkResolver::resolve_invoke(info, Handle(), pool,
   758     LinkResolver::resolve_invoke(info, Handle(), pool,
   769                                  index, bytecode, CHECK);
   759                                  index, bytecode, CHECK);
   770   } // end JvmtiHideSingleStepping
   760   } // end JvmtiHideSingleStepping
   771 
   761 
   772   pool->cache()->secondary_entry_at(index)->set_dynamic_call(
   762   ConstantPoolCacheEntry* cp_cache_entry = pool->invokedynamic_cp_cache_entry_at(index);
       
   763   cp_cache_entry->set_dynamic_call(
   773       info.resolved_method(),
   764       info.resolved_method(),
   774       info.resolved_appendix());
   765       info.resolved_appendix(),
       
   766       pool->resolved_references());
   775 }
   767 }
   776 IRT_END
   768 IRT_END
   777 
   769 
   778 
   770 
   779 //------------------------------------------------------------------------------------------------------------------------
   771 //------------------------------------------------------------------------------------------------------------------------
   788     // frequency_counter_overflow_inner ends with a safepoint check,
   780     // frequency_counter_overflow_inner ends with a safepoint check,
   789     // nm could have been unloaded so look it up again.  It's unsafe
   781     // nm could have been unloaded so look it up again.  It's unsafe
   790     // to examine nm directly since it might have been freed and used
   782     // to examine nm directly since it might have been freed and used
   791     // for something else.
   783     // for something else.
   792     frame fr = thread->last_frame();
   784     frame fr = thread->last_frame();
   793     methodOop method =  fr.interpreter_frame_method();
   785     Method* method =  fr.interpreter_frame_method();
   794     int bci = method->bci_from(fr.interpreter_frame_bcp());
   786     int bci = method->bci_from(fr.interpreter_frame_bcp());
   795     nm = method->lookup_osr_nmethod_for(bci, CompLevel_none, false);
   787     nm = method->lookup_osr_nmethod_for(bci, CompLevel_none, false);
   796   }
   788   }
   797 #ifndef PRODUCT
   789 #ifndef PRODUCT
   798   if (TraceOnStackReplacement) {
   790   if (TraceOnStackReplacement) {
   842     }
   834     }
   843   }
   835   }
   844   return osr_nm;
   836   return osr_nm;
   845 IRT_END
   837 IRT_END
   846 
   838 
   847 IRT_LEAF(jint, InterpreterRuntime::bcp_to_di(methodOopDesc* method, address cur_bcp))
   839 IRT_LEAF(jint, InterpreterRuntime::bcp_to_di(Method* method, address cur_bcp))
   848   assert(ProfileInterpreter, "must be profiling interpreter");
   840   assert(ProfileInterpreter, "must be profiling interpreter");
   849   int bci = method->bci_from(cur_bcp);
   841   int bci = method->bci_from(cur_bcp);
   850   methodDataOop mdo = method->method_data();
   842   MethodData* mdo = method->method_data();
   851   if (mdo == NULL)  return 0;
   843   if (mdo == NULL)  return 0;
   852   return mdo->bci_to_di(bci);
   844   return mdo->bci_to_di(bci);
   853 IRT_END
   845 IRT_END
   854 
   846 
   855 IRT_ENTRY(void, InterpreterRuntime::profile_method(JavaThread* thread))
   847 IRT_ENTRY(void, InterpreterRuntime::profile_method(JavaThread* thread))
   859 
   851 
   860   assert(ProfileInterpreter, "must be profiling interpreter");
   852   assert(ProfileInterpreter, "must be profiling interpreter");
   861   frame fr = thread->last_frame();
   853   frame fr = thread->last_frame();
   862   assert(fr.is_interpreted_frame(), "must come from interpreter");
   854   assert(fr.is_interpreted_frame(), "must come from interpreter");
   863   methodHandle method(thread, fr.interpreter_frame_method());
   855   methodHandle method(thread, fr.interpreter_frame_method());
   864   methodOopDesc::build_interpreter_method_data(method, THREAD);
   856   Method::build_interpreter_method_data(method, THREAD);
   865   if (HAS_PENDING_EXCEPTION) {
   857   if (HAS_PENDING_EXCEPTION) {
   866     assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
   858     assert((PENDING_EXCEPTION->is_a(SystemDictionary::OutOfMemoryError_klass())), "we expect only an OOM error here");
   867     CLEAR_PENDING_EXCEPTION;
   859     CLEAR_PENDING_EXCEPTION;
   868     // and fall through...
   860     // and fall through...
   869   }
   861   }
   870 IRT_END
   862 IRT_END
   871 
   863 
   872 
   864 
   873 #ifdef ASSERT
   865 #ifdef ASSERT
   874 IRT_LEAF(void, InterpreterRuntime::verify_mdp(methodOopDesc* method, address bcp, address mdp))
   866 IRT_LEAF(void, InterpreterRuntime::verify_mdp(Method* method, address bcp, address mdp))
   875   assert(ProfileInterpreter, "must be profiling interpreter");
   867   assert(ProfileInterpreter, "must be profiling interpreter");
   876 
   868 
   877   methodDataOop mdo = method->method_data();
   869   MethodData* mdo = method->method_data();
   878   assert(mdo != NULL, "must not be null");
   870   assert(mdo != NULL, "must not be null");
   879 
   871 
   880   int bci = method->bci_from(bcp);
   872   int bci = method->bci_from(bcp);
   881 
   873 
   882   address mdp2 = mdo->bci_to_dp(bci);
   874   address mdp2 = mdo->bci_to_dp(bci);
   905   assert(ProfileInterpreter, "must be profiling interpreter");
   897   assert(ProfileInterpreter, "must be profiling interpreter");
   906   ResourceMark rm(thread);
   898   ResourceMark rm(thread);
   907   HandleMark hm(thread);
   899   HandleMark hm(thread);
   908   frame fr = thread->last_frame();
   900   frame fr = thread->last_frame();
   909   assert(fr.is_interpreted_frame(), "must come from interpreter");
   901   assert(fr.is_interpreted_frame(), "must come from interpreter");
   910   methodDataHandle h_mdo(thread, fr.interpreter_frame_method()->method_data());
   902   MethodData* h_mdo = fr.interpreter_frame_method()->method_data();
   911 
   903 
   912   // Grab a lock to ensure atomic access to setting the return bci and
   904   // Grab a lock to ensure atomic access to setting the return bci and
   913   // the displacement.  This can block and GC, invalidating all naked oops.
   905   // the displacement.  This can block and GC, invalidating all naked oops.
   914   MutexLocker ml(RetData_lock);
   906   MutexLocker ml(RetData_lock);
   915 
   907 
   941 IRT_ENTRY(void, InterpreterRuntime::post_field_access(JavaThread *thread, oopDesc* obj,
   933 IRT_ENTRY(void, InterpreterRuntime::post_field_access(JavaThread *thread, oopDesc* obj,
   942 ConstantPoolCacheEntry *cp_entry))
   934 ConstantPoolCacheEntry *cp_entry))
   943 
   935 
   944   // check the access_flags for the field in the klass
   936   // check the access_flags for the field in the klass
   945 
   937 
   946   instanceKlass* ik = instanceKlass::cast(java_lang_Class::as_klassOop(cp_entry->f1_as_klass_mirror()));
   938   InstanceKlass* ik = InstanceKlass::cast(cp_entry->f1_as_klass());
   947   int index = cp_entry->field_index();
   939   int index = cp_entry->field_index();
   948   if ((ik->field_access_flags(index) & JVM_ACC_FIELD_ACCESS_WATCHED) == 0) return;
   940   if ((ik->field_access_flags(index) & JVM_ACC_FIELD_ACCESS_WATCHED) == 0) return;
   949 
   941 
   950   switch(cp_entry->flag_state()) {
   942   switch(cp_entry->flag_state()) {
   951     case btos:    // fall through
   943     case btos:    // fall through
   964   Handle h_obj;
   956   Handle h_obj;
   965   if (!is_static) {
   957   if (!is_static) {
   966     // non-static field accessors have an object, but we need a handle
   958     // non-static field accessors have an object, but we need a handle
   967     h_obj = Handle(thread, obj);
   959     h_obj = Handle(thread, obj);
   968   }
   960   }
   969   instanceKlassHandle h_cp_entry_f1(thread, java_lang_Class::as_klassOop(cp_entry->f1_as_klass_mirror()));
   961   instanceKlassHandle h_cp_entry_f1(thread, (Klass*)cp_entry->f1_as_klass());
   970   jfieldID fid = jfieldIDWorkaround::to_jfieldID(h_cp_entry_f1, cp_entry->f2_as_index(), is_static);
   962   jfieldID fid = jfieldIDWorkaround::to_jfieldID(h_cp_entry_f1, cp_entry->f2_as_index(), is_static);
   971   JvmtiExport::post_field_access(thread, method(thread), bcp(thread), h_cp_entry_f1, h_obj, fid);
   963   JvmtiExport::post_field_access(thread, method(thread), bcp(thread), h_cp_entry_f1, h_obj, fid);
   972 IRT_END
   964 IRT_END
   973 
   965 
   974 IRT_ENTRY(void, InterpreterRuntime::post_field_modification(JavaThread *thread,
   966 IRT_ENTRY(void, InterpreterRuntime::post_field_modification(JavaThread *thread,
   975   oopDesc* obj, ConstantPoolCacheEntry *cp_entry, jvalue *value))
   967   oopDesc* obj, ConstantPoolCacheEntry *cp_entry, jvalue *value))
   976 
   968 
   977   klassOop k = java_lang_Class::as_klassOop(cp_entry->f1_as_klass_mirror());
   969   Klass* k = (Klass*)cp_entry->f1_as_klass();
   978 
   970 
   979   // check the access_flags for the field in the klass
   971   // check the access_flags for the field in the klass
   980   instanceKlass* ik = instanceKlass::cast(k);
   972   InstanceKlass* ik = InstanceKlass::cast(k);
   981   int index = cp_entry->field_index();
   973   int index = cp_entry->field_index();
   982   // bail out if field modifications are not watched
   974   // bail out if field modifications are not watched
   983   if ((ik->field_access_flags(index) & JVM_ACC_FIELD_MODIFICATION_WATCHED) == 0) return;
   975   if ((ik->field_access_flags(index) & JVM_ACC_FIELD_MODIFICATION_WATCHED) == 0) return;
   984 
   976 
   985   char sig_type = '\0';
   977   char sig_type = '\0';
  1181 GrowableArray<uint64_t>* SignatureHandlerLibrary::_fingerprints = NULL;
  1173 GrowableArray<uint64_t>* SignatureHandlerLibrary::_fingerprints = NULL;
  1182 GrowableArray<address>*  SignatureHandlerLibrary::_handlers     = NULL;
  1174 GrowableArray<address>*  SignatureHandlerLibrary::_handlers     = NULL;
  1183 address                  SignatureHandlerLibrary::_buffer       = NULL;
  1175 address                  SignatureHandlerLibrary::_buffer       = NULL;
  1184 
  1176 
  1185 
  1177 
  1186 IRT_ENTRY(void, InterpreterRuntime::prepare_native_call(JavaThread* thread, methodOopDesc* method))
  1178 IRT_ENTRY(void, InterpreterRuntime::prepare_native_call(JavaThread* thread, Method* method))
  1187   methodHandle m(thread, method);
  1179   methodHandle m(thread, method);
  1188   assert(m->is_native(), "sanity check");
  1180   assert(m->is_native(), "sanity check");
  1189   // lookup native function entry point if it doesn't exist
  1181   // lookup native function entry point if it doesn't exist
  1190   bool in_base_library;
  1182   bool in_base_library;
  1191   if (!m->has_native_function()) {
  1183   if (!m->has_native_function()) {