1 /*
2  * Copyright (C) 2011 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 "quick_compiler_callbacks.h"
18 
19 #include "dex/verification_results.h"
20 #include "driver/compiler_driver.h"
21 #include "mirror/class-inl.h"
22 
23 namespace art {
24 
25 void QuickCompilerCallbacks::MethodVerified(verifier::MethodVerifier* verifier) {
26   if (verification_results_ != nullptr) {
27     verification_results_->ProcessVerifiedMethod(verifier);
28   }
29 }
30 
31 void QuickCompilerCallbacks::ClassRejected(ClassReference ref) {
32   if (verification_results_ != nullptr) {
33     verification_results_->AddRejectedClass(ref);
34   }
35 }
36 
37 ClassStatus QuickCompilerCallbacks::GetPreviousClassState(ClassReference ref) {
38   // If we don't have class unloading enabled in the compiler, we will never see class that were
39   // previously verified. Return false to avoid overhead from the lookup in the compiler driver.
40   if (!does_class_unloading_) {
41     return ClassStatus::kNotReady;
42   }
43   DCHECK(compiler_driver_ != nullptr);
44   // In the case of the quicken filter: avoiding verification of quickened instructions, which the
45   // verifier doesn't currently support.
46   // In the case of the verify filter, avoiding verifiying twice.
47   return compiler_driver_->GetClassStatus(ref);
48 }
49 
50 void QuickCompilerCallbacks::UpdateClassState(ClassReference ref, ClassStatus status) {
51   // Driver is null when bootstrapping the runtime.
52   if (compiler_driver_ != nullptr) {
53     compiler_driver_->RecordClassStatus(ref, status);
54   }
55 }
56 
57 bool QuickCompilerCallbacks::CanUseOatStatusForVerification(mirror::Class* klass) {
58   // No dex files: conservatively false.
59   if (dex_files_ == nullptr) {
60     return false;
61   }
62 
63   // If the class isn't from one of the dex files, accept oat file data.
64   const DexFile* dex_file = &klass->GetDexFile();
65   return std::find(dex_files_->begin(), dex_files_->end(), dex_file) == dex_files_->end();
66 }
67 
68 }  // namespace art
69