1 /*
2 * Copyright (C) 2016 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_IMAGE_INL_H_
18 #define ART_RUNTIME_IMAGE_INL_H_
19
20 #include "image.h"
21
22 #include "art_method.h"
23
24 namespace art {
25
26 template <ReadBarrierOption kReadBarrierOption>
GetImageRoot(ImageRoot image_root)27 inline mirror::Object* ImageHeader::GetImageRoot(ImageRoot image_root) const {
28 mirror::ObjectArray<mirror::Object>* image_roots = GetImageRoots<kReadBarrierOption>();
29 return image_roots->Get<kVerifyNone, kReadBarrierOption>(static_cast<int32_t>(image_root));
30 }
31
32 template <ReadBarrierOption kReadBarrierOption>
GetImageRoots()33 inline mirror::ObjectArray<mirror::Object>* ImageHeader::GetImageRoots() const {
34 // Need a read barrier as it's not visited during root scan.
35 // Pass in the address of the local variable to the read barrier
36 // rather than image_roots_ because it won't move (asserted below)
37 // and it's a const member.
38 mirror::ObjectArray<mirror::Object>* image_roots =
39 reinterpret_cast<mirror::ObjectArray<mirror::Object>*>(image_roots_);
40 mirror::ObjectArray<mirror::Object>* result =
41 ReadBarrier::BarrierForRoot<mirror::ObjectArray<mirror::Object>, kReadBarrierOption>(
42 &image_roots);
43 DCHECK_EQ(image_roots, result);
44 return image_roots;
45 }
46
47 template <typename Visitor>
VisitPackedImtConflictTables(const Visitor & visitor,uint8_t * base,size_t pointer_size)48 inline void ImageHeader::VisitPackedImtConflictTables(const Visitor& visitor,
49 uint8_t* base,
50 size_t pointer_size) const {
51 const ImageSection& section = GetImageSection(kSectionIMTConflictTables);
52 for (size_t pos = 0; pos < section.Size(); ) {
53 auto* table = reinterpret_cast<ImtConflictTable*>(base + section.Offset() + pos);
54 table->Visit([&visitor](const std::pair<ArtMethod*, ArtMethod*>& methods) {
55 return std::make_pair(visitor(methods.first), visitor(methods.second));
56 }, pointer_size);
57 pos += table->ComputeSize(pointer_size);
58 }
59 }
60
61 } // namespace art
62
63 #endif // ART_RUNTIME_IMAGE_INL_H_
64