1 /*
2  * Copyright (C) 2013 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_COMPILER_CALLBACKS_H_
18 #define ART_RUNTIME_COMPILER_CALLBACKS_H_
19 
20 #include "base/mutex.h"
21 #include "class_reference.h"
22 
23 namespace art {
24 
25 namespace verifier {
26 
27 class MethodVerifier;
28 
29 }  // namespace verifier
30 
31 class CompilerCallbacks {
32  public:
33   enum class CallbackMode {  // private
34     kCompileBootImage,
35     kCompileApp
36   };
37 
~CompilerCallbacks()38   virtual ~CompilerCallbacks() { }
39 
40   virtual bool MethodVerified(verifier::MethodVerifier* verifier)
41   SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) = 0;
42   virtual void ClassRejected(ClassReference ref) = 0;
43 
44   // Return true if we should attempt to relocate to a random base address if we have not already
45   // done so. Return false if relocating in this way would be problematic.
46   virtual bool IsRelocationPossible() = 0;
47 
IsBootImage()48   bool IsBootImage() {
49     return mode_ == CallbackMode::kCompileBootImage;
50   }
51 
52  protected:
CompilerCallbacks(CallbackMode mode)53   explicit CompilerCallbacks(CallbackMode mode) : mode_(mode) { }
54 
55  private:
56   // Whether the compiler is creating a boot image.
57   const CallbackMode mode_;
58 };
59 
60 }  // namespace art
61 
62 #endif  // ART_RUNTIME_COMPILER_CALLBACKS_H_
63