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
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
/*
* Copyright (C) 2016 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_COMMON_DEX_OPERATIONS_H_
#define ART_RUNTIME_COMMON_DEX_OPERATIONS_H_
#include "art_field.h"
#include "art_method.h"
#include "class_linker.h"
#include "interpreter/unstarted_runtime.h"
#include "runtime.h"
#include "stack.h"
#include "thread.h"
namespace art {
namespace interpreter {
void ArtInterpreterToInterpreterBridge(Thread* self,
const DexFile::CodeItem* code_item,
ShadowFrame* shadow_frame,
JValue* result)
REQUIRES_SHARED(Locks::mutator_lock_);
void ArtInterpreterToCompiledCodeBridge(Thread* self,
ArtMethod* caller,
ShadowFrame* shadow_frame,
uint16_t arg_offset,
JValue* result);
} // namespace interpreter
inline void PerformCall(Thread* self,
const DexFile::CodeItem* code_item,
ArtMethod* caller_method,
const size_t first_dest_reg,
ShadowFrame* callee_frame,
JValue* result,
bool use_interpreter_entrypoint)
REQUIRES_SHARED(Locks::mutator_lock_) {
if (LIKELY(Runtime::Current()->IsStarted())) {
if (use_interpreter_entrypoint) {
interpreter::ArtInterpreterToInterpreterBridge(self, code_item, callee_frame, result);
} else {
interpreter::ArtInterpreterToCompiledCodeBridge(
self, caller_method, callee_frame, first_dest_reg, result);
}
} else {
interpreter::UnstartedRuntime::Invoke(self, code_item, callee_frame, result, first_dest_reg);
}
}
template<Primitive::Type field_type>
static ALWAYS_INLINE bool DoFieldGetCommon(Thread* self,
const ShadowFrame& shadow_frame,
ObjPtr<mirror::Object> obj,
ArtField* field,
JValue* result)
REQUIRES_SHARED(Locks::mutator_lock_) {
field->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self);
// Report this field access to instrumentation if needed.
instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
if (UNLIKELY(instrumentation->HasFieldReadListeners())) {
StackHandleScope<1> hs(self);
// Wrap in handle wrapper in case the listener does thread suspension.
HandleWrapperObjPtr<mirror::Object> h(hs.NewHandleWrapper(&obj));
ObjPtr<mirror::Object> this_object;
if (!field->IsStatic()) {
this_object = obj;
}
instrumentation->FieldReadEvent(self,
this_object.Ptr(),
shadow_frame.GetMethod(),
shadow_frame.GetDexPC(),
field);
if (UNLIKELY(self->IsExceptionPending())) {
return false;
}
}
switch (field_type) {
case Primitive::kPrimBoolean:
result->SetZ(field->GetBoolean(obj));
break;
case Primitive::kPrimByte:
result->SetB(field->GetByte(obj));
break;
case Primitive::kPrimChar:
result->SetC(field->GetChar(obj));
break;
case Primitive::kPrimShort:
result->SetS(field->GetShort(obj));
break;
case Primitive::kPrimInt:
result->SetI(field->GetInt(obj));
break;
case Primitive::kPrimLong:
result->SetJ(field->GetLong(obj));
break;
case Primitive::kPrimNot:
result->SetL(field->GetObject(obj));
break;
case Primitive::kPrimVoid:
LOG(FATAL) << "Unreachable " << field_type;
break;
}
return true;
}
template<Primitive::Type field_type, bool do_assignability_check, bool transaction_active>
ALWAYS_INLINE bool DoFieldPutCommon(Thread* self,
const ShadowFrame& shadow_frame,
ObjPtr<mirror::Object> obj,
ArtField* field,
JValue& value)
REQUIRES_SHARED(Locks::mutator_lock_) {
field->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self);
// Report this field access to instrumentation if needed. Since we only have the offset of
// the field from the base of the object, we need to look for it first.
instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
if (UNLIKELY(instrumentation->HasFieldWriteListeners())) {
StackHandleScope<2> hs(self);
// Save this and return value (if needed) in case the instrumentation causes a suspend.
HandleWrapperObjPtr<mirror::Object> h(hs.NewHandleWrapper(&obj));
ObjPtr<mirror::Object> this_object = field->IsStatic() ? nullptr : obj;
mirror::Object* fake_root = nullptr;
HandleWrapper<mirror::Object> ret(hs.NewHandleWrapper<mirror::Object>(
field_type == Primitive::kPrimNot ? value.GetGCRoot() : &fake_root));
instrumentation->FieldWriteEvent(self,
this_object.Ptr(),
shadow_frame.GetMethod(),
shadow_frame.GetDexPC(),
field,
value);
if (UNLIKELY(self->IsExceptionPending())) {
return false;
}
}
switch (field_type) {
case Primitive::kPrimBoolean:
field->SetBoolean<transaction_active>(obj, value.GetZ());
break;
case Primitive::kPrimByte:
field->SetByte<transaction_active>(obj, value.GetB());
break;
case Primitive::kPrimChar:
field->SetChar<transaction_active>(obj, value.GetC());
break;
case Primitive::kPrimShort:
field->SetShort<transaction_active>(obj, value.GetS());
break;
case Primitive::kPrimInt:
field->SetInt<transaction_active>(obj, value.GetI());
break;
case Primitive::kPrimLong:
field->SetLong<transaction_active>(obj, value.GetJ());
break;
case Primitive::kPrimNot: {
ObjPtr<mirror::Object> reg = value.GetL();
if (do_assignability_check && reg != nullptr) {
// FieldHelper::GetType can resolve classes, use a handle wrapper which will restore the
// object in the destructor.
ObjPtr<mirror::Class> field_class;
{
StackHandleScope<2> hs(self);
HandleWrapperObjPtr<mirror::Object> h_reg(hs.NewHandleWrapper(®));
HandleWrapperObjPtr<mirror::Object> h_obj(hs.NewHandleWrapper(&obj));
field_class = field->GetType<true>();
}
if (!reg->VerifierInstanceOf(field_class.Ptr())) {
// This should never happen.
std::string temp1, temp2, temp3;
self->ThrowNewExceptionF("Ljava/lang/InternalError;",
"Put '%s' that is not instance of field '%s' in '%s'",
reg->GetClass()->GetDescriptor(&temp1),
field_class->GetDescriptor(&temp2),
field->GetDeclaringClass()->GetDescriptor(&temp3));
return false;
}
}
field->SetObj<transaction_active>(obj, reg);
break;
}
case Primitive::kPrimVoid: {
LOG(FATAL) << "Unreachable " << field_type;
break;
}
}
return true;
}
} // namespace art
#endif // ART_RUNTIME_COMMON_DEX_OPERATIONS_H_
|
