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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 #ifndef ART_RUNTIME_ENTRYPOINTS_QUICK_CALLEE_SAVE_FRAME_H_
     18 #define ART_RUNTIME_ENTRYPOINTS_QUICK_CALLEE_SAVE_FRAME_H_
     19 
     20 #include "base/mutex.h"
     21 #include "thread-inl.h"
     22 
     23 namespace art {
     24 namespace mirror {
     25 class ArtMethod;
     26 }  // namespace mirror
     27 
     28 // Place a special frame at the TOS that will save the callee saves for the given type.
     29 static void FinishCalleeSaveFrameSetup(Thread* self, mirror::ArtMethod** sp,
     30                                        Runtime::CalleeSaveType type)
     31     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
     32   // Be aware the store below may well stomp on an incoming argument.
     33   Locks::mutator_lock_->AssertSharedHeld(self);
     34   *sp = Runtime::Current()->GetCalleeSaveMethod(type);
     35   self->SetTopOfStack(sp, 0);
     36   self->VerifyStack();
     37 }
     38 
     39 }  // namespace art
     40 
     41 #endif  // ART_RUNTIME_ENTRYPOINTS_QUICK_CALLEE_SAVE_FRAME_H_
     42