1 /*
2  * Copyright (C) 2014 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_VERIFY_OBJECT_INL_H_
18 #define ART_RUNTIME_VERIFY_OBJECT_INL_H_
19 
20 #include "verify_object.h"
21 
22 #include "gc/heap.h"
23 #include "mirror/object-inl.h"
24 
25 namespace art {
26 
VerifyObject(mirror::Object * obj)27 inline void VerifyObject(mirror::Object* obj) {
28   if (kVerifyObjectSupport > kVerifyObjectModeDisabled && obj != nullptr) {
29     if (kVerifyObjectSupport > kVerifyObjectModeFast) {
30       // Slow object verification, try the heap right away.
31       Runtime::Current()->GetHeap()->VerifyObjectBody(obj);
32     } else {
33       // Fast object verification, only call the heap if our quick sanity tests fail. The heap will
34       // print the diagnostic message.
35       bool failed = !IsAligned<kObjectAlignment>(obj);
36       if (!failed) {
37         mirror::Class* c = obj->GetClass<kVerifyNone>();
38         failed = failed || !IsAligned<kObjectAlignment>(c);
39         failed = failed || !VerifyClassClass(c);
40       }
41       if (UNLIKELY(failed)) {
42         Runtime::Current()->GetHeap()->VerifyObjectBody(obj);
43       }
44     }
45   }
46 }
47 
VerifyClassClass(mirror::Class * c)48 inline bool VerifyClassClass(mirror::Class* c) {
49   if (UNLIKELY(c == nullptr)) {
50     return false;
51   }
52   // Note: We pass in flags to ensure that the accessors don't call VerifyObject.
53   mirror::Class* c_c = c->GetClass<kVerifyNone>();
54   return c_c != nullptr && c_c == c_c->GetClass<kVerifyNone>();
55 }
56 
57 }  // namespace art
58 
59 #endif  // ART_RUNTIME_VERIFY_OBJECT_INL_H_
60