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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include "callee_save_frame.h"
     18 #include "entrypoints/entrypoint_utils.h"
     19 #include "mirror/object.h"
     20 #include "object_utils.h"
     21 #include "thread.h"
     22 #include "well_known_classes.h"
     23 
     24 namespace art {
     25 
     26 // Deliver an exception that's pending on thread helping set up a callee save frame on the way.
     27 extern "C" void artDeliverPendingExceptionFromCode(Thread* thread, mirror::ArtMethod** sp)
     28     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     29   FinishCalleeSaveFrameSetup(thread, sp, Runtime::kSaveAll);
     30   thread->QuickDeliverException();
     31 }
     32 
     33 // Called by generated call to throw an exception.
     34 extern "C" void artDeliverExceptionFromCode(mirror::Throwable* exception, Thread* self,
     35                                             mirror::ArtMethod** sp)
     36     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     37   /*
     38    * exception may be NULL, in which case this routine should
     39    * throw NPE.  NOTE: this is a convenience for generated code,
     40    * which previously did the null check inline and constructed
     41    * and threw a NPE if NULL.  This routine responsible for setting
     42    * exception_ in thread and delivering the exception.
     43    */
     44   FinishCalleeSaveFrameSetup(self, sp, Runtime::kSaveAll);
     45   ThrowLocation throw_location = self->GetCurrentLocationForThrow();
     46   if (exception == NULL) {
     47     self->ThrowNewException(throw_location, "Ljava/lang/NullPointerException;",
     48                             "throw with null exception");
     49   } else {
     50     self->SetException(throw_location, exception);
     51   }
     52   self->QuickDeliverException();
     53 }
     54 
     55 // Called by generated call to throw a NPE exception.
     56 extern "C" void artThrowNullPointerExceptionFromCode(Thread* self,
     57                                                      mirror::ArtMethod** sp)
     58     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     59   FinishCalleeSaveFrameSetup(self, sp, Runtime::kSaveAll);
     60   ThrowLocation throw_location = self->GetCurrentLocationForThrow();
     61   ThrowNullPointerExceptionFromDexPC(throw_location);
     62   self->QuickDeliverException();
     63 }
     64 
     65 // Called by generated call to throw an arithmetic divide by zero exception.
     66 extern "C" void artThrowDivZeroFromCode(Thread* self,
     67                                         mirror::ArtMethod** sp)
     68     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     69   FinishCalleeSaveFrameSetup(self, sp, Runtime::kSaveAll);
     70   ThrowArithmeticExceptionDivideByZero();
     71   self->QuickDeliverException();
     72 }
     73 
     74 // Called by generated call to throw an array index out of bounds exception.
     75 extern "C" void artThrowArrayBoundsFromCode(int index, int length, Thread* self,
     76                                             mirror::ArtMethod** sp)
     77     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     78   FinishCalleeSaveFrameSetup(self, sp, Runtime::kSaveAll);
     79   ThrowArrayIndexOutOfBoundsException(index, length);
     80   self->QuickDeliverException();
     81 }
     82 
     83 extern "C" void artThrowStackOverflowFromCode(Thread* self, mirror::ArtMethod** sp)
     84     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     85   FinishCalleeSaveFrameSetup(self, sp, Runtime::kSaveAll);
     86   ThrowStackOverflowError(self);
     87   self->QuickDeliverException();
     88 }
     89 
     90 extern "C" void artThrowNoSuchMethodFromCode(int32_t method_idx, Thread* self,
     91                                              mirror::ArtMethod** sp)
     92     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     93   FinishCalleeSaveFrameSetup(self, sp, Runtime::kSaveAll);
     94   ThrowNoSuchMethodError(method_idx);
     95   self->QuickDeliverException();
     96 }
     97 
     98 }  // namespace art
     99