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 class VerifierDeps;
29 
30 }  // namespace verifier
31 
32 class CompilerCallbacks {
33  public:
34   enum class CallbackMode {  // private
35     kCompileBootImage,
36     kCompileApp
37   };
38 
~CompilerCallbacks()39   virtual ~CompilerCallbacks() { }
40 
41   virtual void MethodVerified(verifier::MethodVerifier* verifier)
42       REQUIRES_SHARED(Locks::mutator_lock_) = 0;
43   virtual void ClassRejected(ClassReference ref) = 0;
44 
45   // Return true if we should attempt to relocate to a random base address if we have not already
46   // done so. Return false if relocating in this way would be problematic.
47   virtual bool IsRelocationPossible() = 0;
48 
49   virtual verifier::VerifierDeps* GetVerifierDeps() const = 0;
SetVerifierDeps(verifier::VerifierDeps * deps ATTRIBUTE_UNUSED)50   virtual void SetVerifierDeps(verifier::VerifierDeps* deps ATTRIBUTE_UNUSED) {}
51 
IsBootImage()52   bool IsBootImage() {
53     return mode_ == CallbackMode::kCompileBootImage;
54   }
55 
56  protected:
CompilerCallbacks(CallbackMode mode)57   explicit CompilerCallbacks(CallbackMode mode) : mode_(mode) { }
58 
59  private:
60   // Whether the compiler is creating a boot image.
61   const CallbackMode mode_;
62 };
63 
64 }  // namespace art
65 
66 #endif  // ART_RUNTIME_COMPILER_CALLBACKS_H_
67