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
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
|
/*
* Copyright (C) 2008 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.
*/
/*
* Helper functions to access data fields in Objects.
*/
#ifndef _DALVIK_OO_OBJECTINLINES
#define _DALVIK_OO_OBJECTINLINES
/*
* Store a single value in the array, and if the value isn't null,
* note in the write barrier.
*/
INLINE void dvmSetObjectArrayElement(const ArrayObject* obj, int index,
Object* val) {
((Object **)(obj)->contents)[index] = val;
if (val != NULL) {
dvmWriteBarrierArray(obj, index, index + 1);
}
}
/*
* Field access functions. Pass in the word offset from Field->byteOffset.
*
* We guarantee that long/double field data is 64-bit aligned, so it's safe
* to access them with ldrd/strd on ARM.
*
* The VM treats all fields as 32 or 64 bits, so the field set functions
* write 32 bits even if the underlying type is smaller.
*
* Setting Object types to non-null values includes a call to the
* write barrier.
*/
#define BYTE_OFFSET(_ptr, _offset) ((void*) (((u1*)(_ptr)) + (_offset)))
INLINE JValue* dvmFieldPtr(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset));
}
INLINE bool dvmGetFieldBoolean(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->z;
}
INLINE s1 dvmGetFieldByte(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->b;
}
INLINE s2 dvmGetFieldShort(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->s;
}
INLINE u2 dvmGetFieldChar(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->c;
}
INLINE s4 dvmGetFieldInt(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->i;
}
INLINE s8 dvmGetFieldLong(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->j;
}
INLINE float dvmGetFieldFloat(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->f;
}
INLINE double dvmGetFieldDouble(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->d;
}
INLINE Object* dvmGetFieldObject(const Object* obj, int offset) {
return ((JValue*)BYTE_OFFSET(obj, offset))->l;
}
INLINE bool dvmGetFieldBooleanVolatile(const Object* obj, int offset) {
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
return (bool)android_atomic_acquire_load(ptr);
}
INLINE s1 dvmGetFieldByteVolatile(const Object* obj, int offset) {
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
return (s1)android_atomic_acquire_load(ptr);
}
INLINE s2 dvmGetFieldShortVolatile(const Object* obj, int offset) {
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
return (s2)android_atomic_acquire_load(ptr);
}
INLINE u2 dvmGetFieldCharVolatile(const Object* obj, int offset) {
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
return (u2)android_atomic_acquire_load(ptr);
}
INLINE s4 dvmGetFieldIntVolatile(const Object* obj, int offset) {
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
return android_atomic_acquire_load(ptr);
}
INLINE float dvmGetFieldFloatVolatile(const Object* obj, int offset) {
union { s4 ival; float fval; } alias;
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
alias.ival = android_atomic_acquire_load(ptr);
return alias.fval;
}
INLINE s8 dvmGetFieldLongVolatile(const Object* obj, int offset) {
const s8* addr = BYTE_OFFSET(obj, offset);
s8 val = dvmQuasiAtomicRead64(addr);
ANDROID_MEMBAR_FULL();
return val;
}
INLINE double dvmGetFieldDoubleVolatile(const Object* obj, int offset) {
union { s8 lval; double dval; } alias;
const s8* addr = BYTE_OFFSET(obj, offset);
alias.lval = dvmQuasiAtomicRead64(addr);
ANDROID_MEMBAR_FULL();
return alias.dval;
}
INLINE Object* dvmGetFieldObjectVolatile(const Object* obj, int offset) {
void** ptr = &((JValue*)BYTE_OFFSET(obj, offset))->l;
return (Object*)android_atomic_acquire_load((int32_t*)ptr);
}
INLINE void dvmSetFieldBoolean(Object* obj, int offset, bool val) {
((JValue*)BYTE_OFFSET(obj, offset))->i = val;
}
INLINE void dvmSetFieldByte(Object* obj, int offset, s1 val) {
((JValue*)BYTE_OFFSET(obj, offset))->i = val;
}
INLINE void dvmSetFieldShort(Object* obj, int offset, s2 val) {
((JValue*)BYTE_OFFSET(obj, offset))->i = val;
}
INLINE void dvmSetFieldChar(Object* obj, int offset, u2 val) {
((JValue*)BYTE_OFFSET(obj, offset))->i = val;
}
INLINE void dvmSetFieldInt(Object* obj, int offset, s4 val) {
((JValue*)BYTE_OFFSET(obj, offset))->i = val;
}
INLINE void dvmSetFieldFloat(Object* obj, int offset, float val) {
((JValue*)BYTE_OFFSET(obj, offset))->f = val;
}
INLINE void dvmSetFieldLong(Object* obj, int offset, s8 val) {
((JValue*)BYTE_OFFSET(obj, offset))->j = val;
}
INLINE void dvmSetFieldDouble(Object* obj, int offset, double val) {
((JValue*)BYTE_OFFSET(obj, offset))->d = val;
}
INLINE void dvmSetFieldObject(Object* obj, int offset, Object* val) {
JValue* lhs = BYTE_OFFSET(obj, offset);
lhs->l = val;
if (val != NULL) {
dvmWriteBarrierField(obj, &lhs->l);
}
}
INLINE void dvmSetFieldIntVolatile(Object* obj, int offset, s4 val) {
s4* ptr = &((JValue*)BYTE_OFFSET(obj, offset))->i;
android_atomic_release_store(val, ptr);
}
INLINE void dvmSetFieldBooleanVolatile(Object* obj, int offset, bool val) {
dvmSetFieldIntVolatile(obj, offset, val);
}
INLINE void dvmSetFieldByteVolatile(Object* obj, int offset, s1 val) {
dvmSetFieldIntVolatile(obj, offset, val);
}
INLINE void dvmSetFieldShortVolatile(Object* obj, int offset, s2 val) {
dvmSetFieldIntVolatile(obj, offset, val);
}
INLINE void dvmSetFieldCharVolatile(Object* obj, int offset, u2 val) {
dvmSetFieldIntVolatile(obj, offset, val);
}
INLINE void dvmSetFieldFloatVolatile(Object* obj, int offset, float val) {
union { s4 ival; float fval; } alias;
alias.fval = val;
dvmSetFieldIntVolatile(obj, offset, alias.ival);
}
INLINE void dvmSetFieldLongVolatile(Object* obj, int offset, s8 val) {
s8* addr = BYTE_OFFSET(obj, offset);
ANDROID_MEMBAR_FULL();
dvmQuasiAtomicSwap64(val, addr);
}
INLINE void dvmSetFieldDoubleVolatile(Object* obj, int offset, double val) {
union { s8 lval; double dval; } alias;
alias.dval = val;
dvmSetFieldLongVolatile(obj, offset, alias.lval);
}
INLINE void dvmSetFieldObjectVolatile(Object* obj, int offset, Object* val) {
void** ptr = &((JValue*)BYTE_OFFSET(obj, offset))->l;
android_atomic_release_store((int32_t)val, (int32_t*)ptr);
if (val != NULL) {
dvmWriteBarrierField(obj, ptr);
}
}
/*
* Static field access functions.
*/
INLINE JValue* dvmStaticFieldPtr(const StaticField* sfield) {
return (JValue*)&sfield->value;
}
INLINE bool dvmGetStaticFieldBoolean(const StaticField* sfield) {
return sfield->value.z;
}
INLINE s1 dvmGetStaticFieldByte(const StaticField* sfield) {
return sfield->value.b;
}
INLINE s2 dvmGetStaticFieldShort(const StaticField* sfield) {
return sfield->value.s;
}
INLINE u2 dvmGetStaticFieldChar(const StaticField* sfield) {
return sfield->value.c;
}
INLINE s4 dvmGetStaticFieldInt(const StaticField* sfield) {
return sfield->value.i;
}
INLINE float dvmGetStaticFieldFloat(const StaticField* sfield) {
return sfield->value.f;
}
INLINE s8 dvmGetStaticFieldLong(const StaticField* sfield) {
return sfield->value.j;
}
INLINE double dvmGetStaticFieldDouble(const StaticField* sfield) {
return sfield->value.d;
}
INLINE Object* dvmGetStaticFieldObject(const StaticField* sfield) {
return sfield->value.l;
}
INLINE bool dvmGetStaticFieldBooleanVolatile(const StaticField* sfield) {
const s4* ptr = &(sfield->value.i);
return (bool)android_atomic_acquire_load((s4*)ptr);
}
INLINE s1 dvmGetStaticFieldByteVolatile(const StaticField* sfield) {
const s4* ptr = &(sfield->value.i);
return (s1)android_atomic_acquire_load((s4*)ptr);
}
INLINE s2 dvmGetStaticFieldShortVolatile(const StaticField* sfield) {
const s4* ptr = &(sfield->value.i);
return (s2)android_atomic_acquire_load((s4*)ptr);
}
INLINE u2 dvmGetStaticFieldCharVolatile(const StaticField* sfield) {
const s4* ptr = &(sfield->value.i);
return (u2)android_atomic_acquire_load((s4*)ptr);
}
INLINE s4 dvmGetStaticFieldIntVolatile(const StaticField* sfield) {
const s4* ptr = &(sfield->value.i);
return android_atomic_acquire_load((s4*)ptr);
}
INLINE float dvmGetStaticFieldFloatVolatile(const StaticField* sfield) {
union { s4 ival; float fval; } alias;
const s4* ptr = &(sfield->value.i);
alias.ival = android_atomic_acquire_load((s4*)ptr);
return alias.fval;
}
INLINE s8 dvmGetStaticFieldLongVolatile(const StaticField* sfield) {
const s8* addr = &sfield->value.j;
s8 val = dvmQuasiAtomicRead64(addr);
ANDROID_MEMBAR_FULL();
return val;
}
INLINE double dvmGetStaticFieldDoubleVolatile(const StaticField* sfield) {
union { s8 lval; double dval; } alias;
const s8* addr = &sfield->value.j;
alias.lval = dvmQuasiAtomicRead64(addr);
ANDROID_MEMBAR_FULL();
return alias.dval;
}
INLINE Object* dvmGetStaticFieldObjectVolatile(const StaticField* sfield) {
void* const* ptr = &(sfield->value.l);
return (Object*)android_atomic_acquire_load((int32_t*)ptr);
}
INLINE void dvmSetStaticFieldBoolean(StaticField* sfield, bool val) {
sfield->value.i = val;
}
INLINE void dvmSetStaticFieldByte(StaticField* sfield, s1 val) {
sfield->value.i = val;
}
INLINE void dvmSetStaticFieldShort(StaticField* sfield, s2 val) {
sfield->value.i = val;
}
INLINE void dvmSetStaticFieldChar(StaticField* sfield, u2 val) {
sfield->value.i = val;
}
INLINE void dvmSetStaticFieldInt(StaticField* sfield, s4 val) {
sfield->value.i = val;
}
INLINE void dvmSetStaticFieldFloat(StaticField* sfield, float val) {
sfield->value.f = val;
}
INLINE void dvmSetStaticFieldLong(StaticField* sfield, s8 val) {
sfield->value.j = val;
}
INLINE void dvmSetStaticFieldDouble(StaticField* sfield, double val) {
sfield->value.d = val;
}
INLINE void dvmSetStaticFieldObject(StaticField* sfield, Object* val) {
sfield->value.l = val;
if (val != NULL) {
dvmWriteBarrierField((Object *)sfield->field.clazz, &sfield->value.l);
}
}
INLINE void dvmSetStaticFieldIntVolatile(StaticField* sfield, s4 val) {
s4* ptr = &sfield->value.i;
android_atomic_release_store(val, ptr);
}
INLINE void dvmSetStaticFieldBooleanVolatile(StaticField* sfield, bool val) {
dvmSetStaticFieldIntVolatile(sfield, val);
}
INLINE void dvmSetStaticFieldByteVolatile(StaticField* sfield, s1 val) {
dvmSetStaticFieldIntVolatile(sfield, val);
}
INLINE void dvmSetStaticFieldShortVolatile(StaticField* sfield, s2 val) {
dvmSetStaticFieldIntVolatile(sfield, val);
}
INLINE void dvmSetStaticFieldCharVolatile(StaticField* sfield, u2 val) {
dvmSetStaticFieldIntVolatile(sfield, val);
}
INLINE void dvmSetStaticFieldFloatVolatile(StaticField* sfield, float val) {
union { s4 ival; float fval; } alias;
alias.fval = val;
dvmSetStaticFieldIntVolatile(sfield, alias.ival);
}
INLINE void dvmSetStaticFieldLongVolatile(StaticField* sfield, s8 val) {
s8* addr = &sfield->value.j;
ANDROID_MEMBAR_FULL();
dvmQuasiAtomicSwap64(val, addr);
}
INLINE void dvmSetStaticFieldDoubleVolatile(StaticField* sfield, double val) {
union { s8 lval; double dval; } alias;
alias.dval = val;
dvmSetStaticFieldLongVolatile(sfield, alias.lval);
}
INLINE void dvmSetStaticFieldObjectVolatile(StaticField* sfield, Object* val) {
void** ptr = &(sfield->value.l);
android_atomic_release_store((int32_t)val, (int32_t*)ptr);
if (val != NULL) {
dvmWriteBarrierField((Object *)sfield->field.clazz, &sfield->value.l);
}
}
#endif /*_DALVIK_OO_OBJECTINLINES*/
|
