1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
|
/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef ART_RUNTIME_CLASS_ROOT_INL_H_
#define ART_RUNTIME_CLASS_ROOT_INL_H_
#include "class_root.h"
#include "class_linker-inl.h"
#include "mirror/class.h"
#include "mirror/object_array-inl.h"
#include "obj_ptr-inl.h"
#include "runtime.h"
namespace art {
template <ReadBarrierOption kReadBarrierOption>
inline ObjPtr<mirror::Class> GetClassRoot(ClassRoot class_root,
ObjPtr<mirror::ObjectArray<mirror::Class>> class_roots) {
DCHECK(class_roots != nullptr);
if (kReadBarrierOption == kWithReadBarrier) {
// With read barrier all references must point to the to-space.
// Without read barrier, this check could fail.
DCHECK_EQ(class_roots, Runtime::Current()->GetClassLinker()->GetClassRoots());
}
DCHECK_LT(static_cast<uint32_t>(class_root), static_cast<uint32_t>(ClassRoot::kMax));
int32_t index = static_cast<int32_t>(class_root);
ObjPtr<mirror::Class> klass =
class_roots->GetWithoutChecks<kDefaultVerifyFlags, kReadBarrierOption>(index);
DCHECK(klass != nullptr);
return klass;
}
template <ReadBarrierOption kReadBarrierOption>
inline ObjPtr<mirror::Class> GetClassRoot(ClassRoot class_root, ClassLinker* linker)
REQUIRES_SHARED(Locks::mutator_lock_) {
return GetClassRoot<kReadBarrierOption>(class_root, linker->GetClassRoots<kReadBarrierOption>());
}
template <ReadBarrierOption kReadBarrierOption>
inline ObjPtr<mirror::Class> GetClassRoot(ClassRoot class_root)
REQUIRES_SHARED(Locks::mutator_lock_) {
return GetClassRoot<kReadBarrierOption>(class_root, Runtime::Current()->GetClassLinker());
}
namespace detail {
class ClassNotFoundExceptionTag;
template <class Tag> struct NoMirrorType;
template <class MirrorType>
struct ClassRootSelector; // No definition for unspecialized ClassRoot selector.
#define SPECIALIZE_CLASS_ROOT_SELECTOR(name, descriptor, mirror_type) \
template <> \
struct ClassRootSelector<mirror_type> { \
static constexpr ClassRoot value = ClassRoot::name; \
};
CLASS_ROOT_LIST(SPECIALIZE_CLASS_ROOT_SELECTOR)
#undef SPECIALIZE_CLASS_ROOT_SELECTOR
} // namespace detail
template <class MirrorType, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<mirror::Class> GetClassRoot(ObjPtr<mirror::ObjectArray<mirror::Class>> class_roots)
REQUIRES_SHARED(Locks::mutator_lock_) {
return GetClassRoot<kReadBarrierOption>(detail::ClassRootSelector<MirrorType>::value,
class_roots);
}
template <class MirrorType, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<mirror::Class> GetClassRoot(ClassLinker* linker)
REQUIRES_SHARED(Locks::mutator_lock_) {
return GetClassRoot<kReadBarrierOption>(detail::ClassRootSelector<MirrorType>::value, linker);
}
template <class MirrorType, ReadBarrierOption kReadBarrierOption>
inline ObjPtr<mirror::Class> GetClassRoot() REQUIRES_SHARED(Locks::mutator_lock_) {
return GetClassRoot<kReadBarrierOption>(detail::ClassRootSelector<MirrorType>::value);
}
} // namespace art
#endif // ART_RUNTIME_CLASS_ROOT_INL_H_
|
