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
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
/*
* 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_H_
#define ART_RUNTIME_CLASS_ROOT_H_
#include "class_linker-inl.h"
#include "gc_root-inl.h"
#include "mirror/class.h"
#include "mirror/object_array-inl.h"
#include "obj_ptr-inl.h"
#include "runtime.h"
namespace art {
namespace mirror {
class ArrayElementVarHandle;
class ByteArrayViewVarHandle;
class ByteBufferViewVarHandle;
class CallSite;
class ClassExt;
class ClassLoader;
class Constructor;
class DexCache;
class EmulatedStackFrame;
class Field;
class FieldVarHandle;
class Method;
class MethodHandleImpl;
class MethodHandlesLookup;
class MethodType;
class Object;
class Proxy;
template<typename T> class PrimitiveArray;
class Reference;
class StackTraceElement;
class String;
class Throwable;
class VarHandle;
} // namespace mirror
#define CLASS_ROOT_LIST(M) \
M(kJavaLangClass, "Ljava/lang/Class;", mirror::Class) \
M(kJavaLangObject, "Ljava/lang/Object;", mirror::Object) \
M(kClassArrayClass, "[Ljava/lang/Class;", mirror::ObjectArray<mirror::Class>) \
M(kObjectArrayClass, "[Ljava/lang/Object;", mirror::ObjectArray<mirror::Object>) \
M(kJavaLangString, "Ljava/lang/String;", mirror::String) \
M(kJavaLangDexCache, "Ljava/lang/DexCache;", mirror::DexCache) \
M(kJavaLangRefReference, "Ljava/lang/ref/Reference;", mirror::Reference) \
M(kJavaLangReflectConstructor, "Ljava/lang/reflect/Constructor;", mirror::Constructor) \
M(kJavaLangReflectField, "Ljava/lang/reflect/Field;", mirror::Field) \
M(kJavaLangReflectMethod, "Ljava/lang/reflect/Method;", mirror::Method) \
M(kJavaLangReflectProxy, "Ljava/lang/reflect/Proxy;", mirror::Proxy) \
M(kJavaLangStringArrayClass, "[Ljava/lang/String;", mirror::ObjectArray<mirror::String>) \
M(kJavaLangReflectConstructorArrayClass, "[Ljava/lang/reflect/Constructor;", mirror::ObjectArray<mirror::Constructor>) \
M(kJavaLangReflectFieldArrayClass, "[Ljava/lang/reflect/Field;", mirror::ObjectArray<mirror::Field>) \
M(kJavaLangReflectMethodArrayClass, "[Ljava/lang/reflect/Method;", mirror::ObjectArray<mirror::Method>) \
M(kJavaLangInvokeCallSite, "Ljava/lang/invoke/CallSite;", mirror::CallSite) \
M(kJavaLangInvokeMethodHandle, "Ljava/lang/invoke/MethodHandle;", mirror::MethodHandle) \
M(kJavaLangInvokeMethodHandleImpl, "Ljava/lang/invoke/MethodHandleImpl;", mirror::MethodHandleImpl) \
M(kJavaLangInvokeMethodHandlesLookup, "Ljava/lang/invoke/MethodHandles$Lookup;", mirror::MethodHandlesLookup) \
M(kJavaLangInvokeMethodType, "Ljava/lang/invoke/MethodType;", mirror::MethodType) \
M(kJavaLangInvokeVarHandle, "Ljava/lang/invoke/VarHandle;", mirror::VarHandle) \
M(kJavaLangInvokeFieldVarHandle, "Ljava/lang/invoke/FieldVarHandle;", mirror::FieldVarHandle) \
M(kJavaLangInvokeArrayElementVarHandle, "Ljava/lang/invoke/ArrayElementVarHandle;", mirror::ArrayElementVarHandle) \
M(kJavaLangInvokeByteArrayViewVarHandle, "Ljava/lang/invoke/ByteArrayViewVarHandle;", mirror::ByteArrayViewVarHandle) \
M(kJavaLangInvokeByteBufferViewVarHandle, "Ljava/lang/invoke/ByteBufferViewVarHandle;", mirror::ByteBufferViewVarHandle) \
M(kJavaLangClassLoader, "Ljava/lang/ClassLoader;", mirror::ClassLoader) \
M(kJavaLangThrowable, "Ljava/lang/Throwable;", mirror::Throwable) \
M(kJavaLangClassNotFoundException, "Ljava/lang/ClassNotFoundException;", detail::NoMirrorType<detail::ClassNotFoundExceptionTag>) \
M(kJavaLangStackTraceElement, "Ljava/lang/StackTraceElement;", mirror::StackTraceElement) \
M(kDalvikSystemEmulatedStackFrame, "Ldalvik/system/EmulatedStackFrame;", mirror::EmulatedStackFrame) \
M(kPrimitiveBoolean, "Z", detail::NoMirrorType<uint8_t>) \
M(kPrimitiveByte, "B", detail::NoMirrorType<int8_t>) \
M(kPrimitiveChar, "C", detail::NoMirrorType<uint16_t>) \
M(kPrimitiveDouble, "D", detail::NoMirrorType<double>) \
M(kPrimitiveFloat, "F", detail::NoMirrorType<float>) \
M(kPrimitiveInt, "I", detail::NoMirrorType<int32_t>) \
M(kPrimitiveLong, "J", detail::NoMirrorType<int64_t>) \
M(kPrimitiveShort, "S", detail::NoMirrorType<int16_t>) \
M(kPrimitiveVoid, "V", detail::NoMirrorType<void>) \
M(kBooleanArrayClass, "[Z", mirror::PrimitiveArray<uint8_t>) \
M(kByteArrayClass, "[B", mirror::PrimitiveArray<int8_t>) \
M(kCharArrayClass, "[C", mirror::PrimitiveArray<uint16_t>) \
M(kDoubleArrayClass, "[D", mirror::PrimitiveArray<double>) \
M(kFloatArrayClass, "[F", mirror::PrimitiveArray<float>) \
M(kIntArrayClass, "[I", mirror::PrimitiveArray<int32_t>) \
M(kLongArrayClass, "[J", mirror::PrimitiveArray<int64_t>) \
M(kShortArrayClass, "[S", mirror::PrimitiveArray<int16_t>) \
M(kJavaLangStackTraceElementArrayClass, "[Ljava/lang/StackTraceElement;", mirror::ObjectArray<mirror::StackTraceElement>) \
M(kJavaLangClassLoaderArrayClass, "[Ljava/lang/ClassLoader;", mirror::ObjectArray<mirror::ClassLoader>) \
M(kDalvikSystemClassExt, "Ldalvik/system/ClassExt;", mirror::ClassExt)
// Well known mirror::Class roots accessed via ClassLinker::GetClassRoots().
enum class ClassRoot : uint32_t {
#define CLASS_ROOT_ENUMERATOR(name, descriptor, mirror_type) name,
CLASS_ROOT_LIST(CLASS_ROOT_ENUMERATOR)
#undef CLASS_ROOT_ENUMERATOR
kMax,
};
const char* GetClassRootDescriptor(ClassRoot class_root);
template <ReadBarrierOption kReadBarrierOption = kWithReadBarrier>
inline ObjPtr<mirror::Class> GetClassRoot(
ClassRoot class_root,
ObjPtr<mirror::ObjectArray<mirror::Class>> class_roots) REQUIRES_SHARED(Locks::mutator_lock_) {
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 = kWithReadBarrier>
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 = kWithReadBarrier>
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 = kWithReadBarrier>
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 = kWithReadBarrier>
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 = kWithReadBarrier>
inline ObjPtr<mirror::Class> GetClassRoot() REQUIRES_SHARED(Locks::mutator_lock_) {
return GetClassRoot<kReadBarrierOption>(detail::ClassRootSelector<MirrorType>::value);
}
} // namespace art
#endif // ART_RUNTIME_CLASS_ROOT_H_
|
