blob: 74fa981d56906b2d7205d67dbc33076fcfa9b6b6 [file] [log] [blame]
Sebastien Hertz8ece0502013-08-07 11:26:41 +02001/*
2 * Copyright (C) 2012 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#include "interpreter_common.h"
Ian Rogers22d5e732014-07-15 22:23:51 -070018
19#include "field_helper.h"
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +010020#include "mirror/array-inl.h"
Sebastien Hertz8ece0502013-08-07 11:26:41 +020021
22namespace art {
23namespace interpreter {
24
Ian Rogers54874942014-06-10 16:31:03 -070025void ThrowNullPointerExceptionFromInterpreter(const ShadowFrame& shadow_frame) {
26 ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
27}
28
29template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check>
30bool DoFieldGet(Thread* self, ShadowFrame& shadow_frame, const Instruction* inst,
31 uint16_t inst_data) {
32 const bool is_static = (find_type == StaticObjectRead) || (find_type == StaticPrimitiveRead);
33 const uint32_t field_idx = is_static ? inst->VRegB_21c() : inst->VRegC_22c();
34 ArtField* f = FindFieldFromCode<find_type, do_access_check>(field_idx, shadow_frame.GetMethod(), self,
35 Primitive::FieldSize(field_type));
36 if (UNLIKELY(f == nullptr)) {
37 CHECK(self->IsExceptionPending());
38 return false;
39 }
40 Object* obj;
41 if (is_static) {
42 obj = f->GetDeclaringClass();
43 } else {
44 obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data));
45 if (UNLIKELY(obj == nullptr)) {
46 ThrowNullPointerExceptionForFieldAccess(shadow_frame.GetCurrentLocationForThrow(), f, true);
47 return false;
48 }
49 }
Sebastien Hertz1edbd8e2014-07-16 20:00:11 +020050 f->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self);
Ian Rogers54874942014-06-10 16:31:03 -070051 // Report this field access to instrumentation if needed.
52 instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
53 if (UNLIKELY(instrumentation->HasFieldReadListeners())) {
54 Object* this_object = f->IsStatic() ? nullptr : obj;
55 instrumentation->FieldReadEvent(self, this_object, shadow_frame.GetMethod(),
56 shadow_frame.GetDexPC(), f);
57 }
58 uint32_t vregA = is_static ? inst->VRegA_21c(inst_data) : inst->VRegA_22c(inst_data);
59 switch (field_type) {
60 case Primitive::kPrimBoolean:
61 shadow_frame.SetVReg(vregA, f->GetBoolean(obj));
62 break;
63 case Primitive::kPrimByte:
64 shadow_frame.SetVReg(vregA, f->GetByte(obj));
65 break;
66 case Primitive::kPrimChar:
67 shadow_frame.SetVReg(vregA, f->GetChar(obj));
68 break;
69 case Primitive::kPrimShort:
70 shadow_frame.SetVReg(vregA, f->GetShort(obj));
71 break;
72 case Primitive::kPrimInt:
73 shadow_frame.SetVReg(vregA, f->GetInt(obj));
74 break;
75 case Primitive::kPrimLong:
76 shadow_frame.SetVRegLong(vregA, f->GetLong(obj));
77 break;
78 case Primitive::kPrimNot:
79 shadow_frame.SetVRegReference(vregA, f->GetObject(obj));
80 break;
81 default:
82 LOG(FATAL) << "Unreachable: " << field_type;
83 }
84 return true;
85}
86
87// Explicitly instantiate all DoFieldGet functions.
88#define EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL(_find_type, _field_type, _do_check) \
89 template bool DoFieldGet<_find_type, _field_type, _do_check>(Thread* self, \
90 ShadowFrame& shadow_frame, \
91 const Instruction* inst, \
92 uint16_t inst_data)
93
94#define EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(_find_type, _field_type) \
95 EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL(_find_type, _field_type, false); \
96 EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL(_find_type, _field_type, true);
97
98// iget-XXX
99EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimBoolean);
100EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimByte);
101EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimChar);
102EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimShort);
103EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimInt);
104EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstancePrimitiveRead, Primitive::kPrimLong);
105EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(InstanceObjectRead, Primitive::kPrimNot);
106
107// sget-XXX
108EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimBoolean);
109EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimByte);
110EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimChar);
111EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimShort);
112EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimInt);
113EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticPrimitiveRead, Primitive::kPrimLong);
114EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL(StaticObjectRead, Primitive::kPrimNot);
115
116#undef EXPLICIT_DO_FIELD_GET_ALL_TEMPLATE_DECL
117#undef EXPLICIT_DO_FIELD_GET_TEMPLATE_DECL
118
119// Handles iget-quick, iget-wide-quick and iget-object-quick instructions.
120// Returns true on success, otherwise throws an exception and returns false.
121template<Primitive::Type field_type>
122bool DoIGetQuick(ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data) {
123 Object* obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data));
124 if (UNLIKELY(obj == nullptr)) {
125 // We lost the reference to the field index so we cannot get a more
126 // precised exception message.
127 ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
128 return false;
129 }
130 MemberOffset field_offset(inst->VRegC_22c());
131 // Report this field access to instrumentation if needed. Since we only have the offset of
132 // the field from the base of the object, we need to look for it first.
133 instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
134 if (UNLIKELY(instrumentation->HasFieldReadListeners())) {
135 ArtField* f = ArtField::FindInstanceFieldWithOffset(obj->GetClass(),
136 field_offset.Uint32Value());
137 DCHECK(f != nullptr);
138 DCHECK(!f->IsStatic());
139 instrumentation->FieldReadEvent(Thread::Current(), obj, shadow_frame.GetMethod(),
140 shadow_frame.GetDexPC(), f);
141 }
142 // Note: iget-x-quick instructions are only for non-volatile fields.
143 const uint32_t vregA = inst->VRegA_22c(inst_data);
144 switch (field_type) {
145 case Primitive::kPrimInt:
146 shadow_frame.SetVReg(vregA, static_cast<int32_t>(obj->GetField32(field_offset)));
147 break;
148 case Primitive::kPrimLong:
149 shadow_frame.SetVRegLong(vregA, static_cast<int64_t>(obj->GetField64(field_offset)));
150 break;
151 case Primitive::kPrimNot:
152 shadow_frame.SetVRegReference(vregA, obj->GetFieldObject<mirror::Object>(field_offset));
153 break;
154 default:
155 LOG(FATAL) << "Unreachable: " << field_type;
156 }
157 return true;
158}
159
160// Explicitly instantiate all DoIGetQuick functions.
161#define EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(_field_type) \
162 template bool DoIGetQuick<_field_type>(ShadowFrame& shadow_frame, const Instruction* inst, \
163 uint16_t inst_data)
164
165EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimInt); // iget-quick.
166EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimLong); // iget-wide-quick.
167EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL(Primitive::kPrimNot); // iget-object-quick.
168#undef EXPLICIT_DO_IGET_QUICK_TEMPLATE_DECL
169
170template<Primitive::Type field_type>
171static JValue GetFieldValue(const ShadowFrame& shadow_frame, uint32_t vreg)
172 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
173 JValue field_value;
174 switch (field_type) {
175 case Primitive::kPrimBoolean:
176 field_value.SetZ(static_cast<uint8_t>(shadow_frame.GetVReg(vreg)));
177 break;
178 case Primitive::kPrimByte:
179 field_value.SetB(static_cast<int8_t>(shadow_frame.GetVReg(vreg)));
180 break;
181 case Primitive::kPrimChar:
182 field_value.SetC(static_cast<uint16_t>(shadow_frame.GetVReg(vreg)));
183 break;
184 case Primitive::kPrimShort:
185 field_value.SetS(static_cast<int16_t>(shadow_frame.GetVReg(vreg)));
186 break;
187 case Primitive::kPrimInt:
188 field_value.SetI(shadow_frame.GetVReg(vreg));
189 break;
190 case Primitive::kPrimLong:
191 field_value.SetJ(shadow_frame.GetVRegLong(vreg));
192 break;
193 case Primitive::kPrimNot:
194 field_value.SetL(shadow_frame.GetVRegReference(vreg));
195 break;
196 default:
197 LOG(FATAL) << "Unreachable: " << field_type;
198 break;
199 }
200 return field_value;
201}
202
203template<FindFieldType find_type, Primitive::Type field_type, bool do_access_check,
204 bool transaction_active>
205bool DoFieldPut(Thread* self, const ShadowFrame& shadow_frame, const Instruction* inst,
206 uint16_t inst_data) {
207 bool do_assignability_check = do_access_check;
208 bool is_static = (find_type == StaticObjectWrite) || (find_type == StaticPrimitiveWrite);
209 uint32_t field_idx = is_static ? inst->VRegB_21c() : inst->VRegC_22c();
210 ArtField* f = FindFieldFromCode<find_type, do_access_check>(field_idx, shadow_frame.GetMethod(), self,
211 Primitive::FieldSize(field_type));
212 if (UNLIKELY(f == nullptr)) {
213 CHECK(self->IsExceptionPending());
214 return false;
215 }
216 Object* obj;
217 if (is_static) {
218 obj = f->GetDeclaringClass();
219 } else {
220 obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data));
221 if (UNLIKELY(obj == nullptr)) {
222 ThrowNullPointerExceptionForFieldAccess(shadow_frame.GetCurrentLocationForThrow(),
223 f, false);
224 return false;
225 }
226 }
Sebastien Hertz1edbd8e2014-07-16 20:00:11 +0200227 f->GetDeclaringClass()->AssertInitializedOrInitializingInThread(self);
Ian Rogers54874942014-06-10 16:31:03 -0700228 uint32_t vregA = is_static ? inst->VRegA_21c(inst_data) : inst->VRegA_22c(inst_data);
229 // Report this field access to instrumentation if needed. Since we only have the offset of
230 // the field from the base of the object, we need to look for it first.
231 instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
232 if (UNLIKELY(instrumentation->HasFieldWriteListeners())) {
233 JValue field_value = GetFieldValue<field_type>(shadow_frame, vregA);
234 Object* this_object = f->IsStatic() ? nullptr : obj;
235 instrumentation->FieldWriteEvent(self, this_object, shadow_frame.GetMethod(),
236 shadow_frame.GetDexPC(), f, field_value);
237 }
238 switch (field_type) {
239 case Primitive::kPrimBoolean:
240 f->SetBoolean<transaction_active>(obj, shadow_frame.GetVReg(vregA));
241 break;
242 case Primitive::kPrimByte:
243 f->SetByte<transaction_active>(obj, shadow_frame.GetVReg(vregA));
244 break;
245 case Primitive::kPrimChar:
246 f->SetChar<transaction_active>(obj, shadow_frame.GetVReg(vregA));
247 break;
248 case Primitive::kPrimShort:
249 f->SetShort<transaction_active>(obj, shadow_frame.GetVReg(vregA));
250 break;
251 case Primitive::kPrimInt:
252 f->SetInt<transaction_active>(obj, shadow_frame.GetVReg(vregA));
253 break;
254 case Primitive::kPrimLong:
255 f->SetLong<transaction_active>(obj, shadow_frame.GetVRegLong(vregA));
256 break;
257 case Primitive::kPrimNot: {
258 Object* reg = shadow_frame.GetVRegReference(vregA);
259 if (do_assignability_check && reg != nullptr) {
260 // FieldHelper::GetType can resolve classes, use a handle wrapper which will restore the
261 // object in the destructor.
262 Class* field_class;
263 {
264 StackHandleScope<3> hs(self);
265 HandleWrapper<mirror::ArtField> h_f(hs.NewHandleWrapper(&f));
266 HandleWrapper<mirror::Object> h_reg(hs.NewHandleWrapper(&reg));
267 HandleWrapper<mirror::Object> h_obj(hs.NewHandleWrapper(&obj));
268 FieldHelper fh(h_f);
269 field_class = fh.GetType();
270 }
271 if (!reg->VerifierInstanceOf(field_class)) {
272 // This should never happen.
Ian Rogers1ff3c982014-08-12 02:30:58 -0700273 std::string temp1, temp2, temp3;
Ian Rogers54874942014-06-10 16:31:03 -0700274 self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(),
275 "Ljava/lang/VirtualMachineError;",
276 "Put '%s' that is not instance of field '%s' in '%s'",
Ian Rogers1ff3c982014-08-12 02:30:58 -0700277 reg->GetClass()->GetDescriptor(&temp1),
278 field_class->GetDescriptor(&temp2),
279 f->GetDeclaringClass()->GetDescriptor(&temp3));
Ian Rogers54874942014-06-10 16:31:03 -0700280 return false;
281 }
282 }
283 f->SetObj<transaction_active>(obj, reg);
284 break;
285 }
286 default:
287 LOG(FATAL) << "Unreachable: " << field_type;
288 }
289 return true;
290}
291
292// Explicitly instantiate all DoFieldPut functions.
293#define EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, _do_check, _transaction_active) \
294 template bool DoFieldPut<_find_type, _field_type, _do_check, _transaction_active>(Thread* self, \
295 const ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data)
296
297#define EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(_find_type, _field_type) \
298 EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, false, false); \
299 EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, true, false); \
300 EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, false, true); \
301 EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL(_find_type, _field_type, true, true);
302
303// iput-XXX
304EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimBoolean);
305EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimByte);
306EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimChar);
307EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimShort);
308EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimInt);
309EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstancePrimitiveWrite, Primitive::kPrimLong);
310EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(InstanceObjectWrite, Primitive::kPrimNot);
311
312// sput-XXX
313EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimBoolean);
314EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimByte);
315EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimChar);
316EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimShort);
317EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimInt);
318EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticPrimitiveWrite, Primitive::kPrimLong);
319EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL(StaticObjectWrite, Primitive::kPrimNot);
320
321#undef EXPLICIT_DO_FIELD_PUT_ALL_TEMPLATE_DECL
322#undef EXPLICIT_DO_FIELD_PUT_TEMPLATE_DECL
323
324template<Primitive::Type field_type, bool transaction_active>
325bool DoIPutQuick(const ShadowFrame& shadow_frame, const Instruction* inst, uint16_t inst_data) {
326 Object* obj = shadow_frame.GetVRegReference(inst->VRegB_22c(inst_data));
327 if (UNLIKELY(obj == nullptr)) {
328 // We lost the reference to the field index so we cannot get a more
329 // precised exception message.
330 ThrowNullPointerExceptionFromDexPC(shadow_frame.GetCurrentLocationForThrow());
331 return false;
332 }
333 MemberOffset field_offset(inst->VRegC_22c());
334 const uint32_t vregA = inst->VRegA_22c(inst_data);
335 // Report this field modification to instrumentation if needed. Since we only have the offset of
336 // the field from the base of the object, we need to look for it first.
337 instrumentation::Instrumentation* instrumentation = Runtime::Current()->GetInstrumentation();
338 if (UNLIKELY(instrumentation->HasFieldWriteListeners())) {
339 ArtField* f = ArtField::FindInstanceFieldWithOffset(obj->GetClass(),
340 field_offset.Uint32Value());
341 DCHECK(f != nullptr);
342 DCHECK(!f->IsStatic());
343 JValue field_value = GetFieldValue<field_type>(shadow_frame, vregA);
344 instrumentation->FieldWriteEvent(Thread::Current(), obj, shadow_frame.GetMethod(),
345 shadow_frame.GetDexPC(), f, field_value);
346 }
347 // Note: iput-x-quick instructions are only for non-volatile fields.
348 switch (field_type) {
349 case Primitive::kPrimInt:
350 obj->SetField32<transaction_active>(field_offset, shadow_frame.GetVReg(vregA));
351 break;
352 case Primitive::kPrimLong:
353 obj->SetField64<transaction_active>(field_offset, shadow_frame.GetVRegLong(vregA));
354 break;
355 case Primitive::kPrimNot:
356 obj->SetFieldObject<transaction_active>(field_offset, shadow_frame.GetVRegReference(vregA));
357 break;
358 default:
359 LOG(FATAL) << "Unreachable: " << field_type;
360 }
361 return true;
362}
363
364// Explicitly instantiate all DoIPutQuick functions.
365#define EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL(_field_type, _transaction_active) \
366 template bool DoIPutQuick<_field_type, _transaction_active>(const ShadowFrame& shadow_frame, \
367 const Instruction* inst, \
368 uint16_t inst_data)
369
370#define EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(_field_type) \
371 EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL(_field_type, false); \
372 EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL(_field_type, true);
373
374EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimInt); // iget-quick.
375EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimLong); // iget-wide-quick.
376EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL(Primitive::kPrimNot); // iget-object-quick.
377#undef EXPLICIT_DO_IPUT_QUICK_ALL_TEMPLATE_DECL
378#undef EXPLICIT_DO_IPUT_QUICK_TEMPLATE_DECL
379
Sebastien Hertz9f102032014-05-23 08:59:42 +0200380/**
381 * Finds the location where this exception will be caught. We search until we reach either the top
382 * frame or a native frame, in which cases this exception is considered uncaught.
383 */
384class CatchLocationFinder : public StackVisitor {
385 public:
386 explicit CatchLocationFinder(Thread* self, Handle<mirror::Throwable>* exception)
387 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_)
388 : StackVisitor(self, nullptr), self_(self), handle_scope_(self), exception_(exception),
389 catch_method_(handle_scope_.NewHandle<mirror::ArtMethod>(nullptr)),
390 catch_dex_pc_(DexFile::kDexNoIndex), clear_exception_(false) {
391 }
392
393 bool VisitFrame() OVERRIDE SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
394 mirror::ArtMethod* method = GetMethod();
395 if (method == nullptr) {
396 return true;
397 }
398 if (method->IsRuntimeMethod()) {
399 // Ignore callee save method.
400 DCHECK(method->IsCalleeSaveMethod());
401 return true;
402 }
403 if (method->IsNative()) {
404 return false; // End stack walk.
405 }
406 DCHECK(!method->IsNative());
407 uint32_t dex_pc = GetDexPc();
408 if (dex_pc != DexFile::kDexNoIndex) {
409 uint32_t found_dex_pc;
410 {
411 StackHandleScope<3> hs(self_);
412 Handle<mirror::Class> exception_class(hs.NewHandle((*exception_)->GetClass()));
413 Handle<mirror::ArtMethod> h_method(hs.NewHandle(method));
414 found_dex_pc = mirror::ArtMethod::FindCatchBlock(h_method, exception_class, dex_pc,
415 &clear_exception_);
416 }
417 if (found_dex_pc != DexFile::kDexNoIndex) {
418 catch_method_.Assign(method);
419 catch_dex_pc_ = found_dex_pc;
420 return false; // End stack walk.
421 }
422 }
423 return true; // Continue stack walk.
424 }
425
426 ArtMethod* GetCatchMethod() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
427 return catch_method_.Get();
428 }
429
430 uint32_t GetCatchDexPc() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
431 return catch_dex_pc_;
432 }
433
434 bool NeedClearException() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
435 return clear_exception_;
436 }
437
438 private:
439 Thread* const self_;
440 StackHandleScope<1> handle_scope_;
441 Handle<mirror::Throwable>* exception_;
442 Handle<mirror::ArtMethod> catch_method_;
443 uint32_t catch_dex_pc_;
444 bool clear_exception_;
445
446
447 DISALLOW_COPY_AND_ASSIGN(CatchLocationFinder);
448};
449
Ian Rogers54874942014-06-10 16:31:03 -0700450uint32_t FindNextInstructionFollowingException(Thread* self,
451 ShadowFrame& shadow_frame,
452 uint32_t dex_pc,
Ian Rogers54874942014-06-10 16:31:03 -0700453 const instrumentation::Instrumentation* instrumentation) {
454 self->VerifyStack();
455 ThrowLocation throw_location;
Sebastien Hertz9f102032014-05-23 08:59:42 +0200456 StackHandleScope<3> hs(self);
457 Handle<mirror::Throwable> exception(hs.NewHandle(self->GetException(&throw_location)));
458 if (!self->IsExceptionReportedToInstrumentation() && instrumentation->HasExceptionCaughtListeners()) {
459 CatchLocationFinder clf(self, &exception);
460 clf.WalkStack(false);
461 instrumentation->ExceptionCaughtEvent(self, throw_location, clf.GetCatchMethod(),
462 clf.GetCatchDexPc(), exception.Get());
463 self->SetExceptionReportedToInstrumentation(true);
464 }
Ian Rogers54874942014-06-10 16:31:03 -0700465 bool clear_exception = false;
466 uint32_t found_dex_pc;
467 {
Ian Rogers54874942014-06-10 16:31:03 -0700468 Handle<mirror::Class> exception_class(hs.NewHandle(exception->GetClass()));
469 Handle<mirror::ArtMethod> h_method(hs.NewHandle(shadow_frame.GetMethod()));
Ian Rogers54874942014-06-10 16:31:03 -0700470 found_dex_pc = mirror::ArtMethod::FindCatchBlock(h_method, exception_class, dex_pc,
471 &clear_exception);
472 }
473 if (found_dex_pc == DexFile::kDexNoIndex) {
Sebastien Hertz9f102032014-05-23 08:59:42 +0200474 instrumentation->MethodUnwindEvent(self, shadow_frame.GetThisObject(),
Ian Rogers54874942014-06-10 16:31:03 -0700475 shadow_frame.GetMethod(), dex_pc);
476 } else {
Sebastien Hertz9f102032014-05-23 08:59:42 +0200477 if (self->IsExceptionReportedToInstrumentation()) {
478 instrumentation->MethodUnwindEvent(self, shadow_frame.GetThisObject(),
479 shadow_frame.GetMethod(), dex_pc);
480 }
Ian Rogers54874942014-06-10 16:31:03 -0700481 if (clear_exception) {
482 self->ClearException();
483 }
484 }
485 return found_dex_pc;
486}
487
488void UnexpectedOpcode(const Instruction* inst, MethodHelper& mh) {
489 LOG(FATAL) << "Unexpected instruction: " << inst->DumpString(mh.GetMethod()->GetDexFile());
490 exit(0); // Unreachable, keep GCC happy.
491}
492
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200493static void UnstartedRuntimeInvoke(Thread* self, MethodHelper& mh,
494 const DexFile::CodeItem* code_item, ShadowFrame* shadow_frame,
495 JValue* result, size_t arg_offset)
496 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200497
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200498// Assign register 'src_reg' from shadow_frame to register 'dest_reg' into new_shadow_frame.
Ian Rogersef7d42f2014-01-06 12:55:46 -0800499static inline void AssignRegister(ShadowFrame* new_shadow_frame, const ShadowFrame& shadow_frame,
500 size_t dest_reg, size_t src_reg)
501 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200502 // If both register locations contains the same value, the register probably holds a reference.
Andreas Gampe7104cbf2014-03-21 11:44:43 -0700503 // Uint required, so that sign extension does not make this wrong on 64b systems
504 uint32_t src_value = shadow_frame.GetVReg(src_reg);
Mathieu Chartier4e305412014-02-19 10:54:44 -0800505 mirror::Object* o = shadow_frame.GetVRegReference<kVerifyNone>(src_reg);
Andreas Gampe7104cbf2014-03-21 11:44:43 -0700506 if (src_value == reinterpret_cast<uintptr_t>(o)) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800507 new_shadow_frame->SetVRegReference(dest_reg, o);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200508 } else {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800509 new_shadow_frame->SetVReg(dest_reg, src_value);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200510 }
511}
512
Mathieu Chartierb2c7ead2014-04-29 11:13:16 -0700513void AbortTransaction(Thread* self, const char* fmt, ...) {
514 CHECK(Runtime::Current()->IsActiveTransaction());
515 // Throw an exception so we can abort the transaction and undo every change.
516 va_list args;
517 va_start(args, fmt);
518 self->ThrowNewExceptionV(self->GetCurrentLocationForThrow(), "Ljava/lang/InternalError;", fmt,
519 args);
520 va_end(args);
521}
522
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200523template<bool is_range, bool do_assignability_check>
Sebastien Hertz9119c5f2013-12-16 11:31:45 +0100524bool DoCall(ArtMethod* method, Thread* self, ShadowFrame& shadow_frame,
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200525 const Instruction* inst, uint16_t inst_data, JValue* result) {
526 // Compute method information.
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700527 const DexFile::CodeItem* code_item = method->GetCodeItem();
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200528 const uint16_t num_ins = (is_range) ? inst->VRegA_3rc(inst_data) : inst->VRegA_35c(inst_data);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200529 uint16_t num_regs;
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200530 if (LIKELY(code_item != NULL)) {
531 num_regs = code_item->registers_size_;
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200532 DCHECK_EQ(num_ins, code_item->ins_size_);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200533 } else {
534 DCHECK(method->IsNative() || method->IsProxyMethod());
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200535 num_regs = num_ins;
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200536 }
537
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200538 // Allocate shadow frame on the stack.
Mathieu Chartiere861ebd2013-10-09 15:01:21 -0700539 const char* old_cause = self->StartAssertNoThreadSuspension("DoCall");
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200540 void* memory = alloca(ShadowFrame::ComputeSize(num_regs));
541 ShadowFrame* new_shadow_frame(ShadowFrame::Create(num_regs, &shadow_frame, method, 0, memory));
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200542
543 // Initialize new shadow frame.
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200544 const size_t first_dest_reg = num_regs - num_ins;
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700545 StackHandleScope<1> hs(self);
546 MethodHelper mh(hs.NewHandle(method));
Jeff Haoa3faaf42013-09-03 19:07:00 -0700547 if (do_assignability_check) {
Andreas Gampe2a0d4ec2014-06-02 22:05:22 -0700548 // Slow path.
549 // We might need to do class loading, which incurs a thread state change to kNative. So
550 // register the shadow frame as under construction and allow suspension again.
551 self->SetShadowFrameUnderConstruction(new_shadow_frame);
552 self->EndAssertNoThreadSuspension(old_cause);
553
554 // We need to do runtime check on reference assignment. We need to load the shorty
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200555 // to get the exact type of each reference argument.
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700556 const DexFile::TypeList* params = method->GetParameterTypeList();
557 uint32_t shorty_len = 0;
558 const char* shorty = method->GetShorty(&shorty_len);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200559
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200560 // TODO: find a cleaner way to separate non-range and range information without duplicating code.
561 uint32_t arg[5]; // only used in invoke-XXX.
562 uint32_t vregC; // only used in invoke-XXX-range.
563 if (is_range) {
564 vregC = inst->VRegC_3rc();
565 } else {
Ian Rogers29a26482014-05-02 15:27:29 -0700566 inst->GetVarArgs(arg, inst_data);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200567 }
Sebastien Hertz9119c5f2013-12-16 11:31:45 +0100568
569 // Handle receiver apart since it's not part of the shorty.
570 size_t dest_reg = first_dest_reg;
571 size_t arg_offset = 0;
572 if (!method->IsStatic()) {
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700573 size_t receiver_reg = is_range ? vregC : arg[0];
Sebastien Hertz9119c5f2013-12-16 11:31:45 +0100574 new_shadow_frame->SetVRegReference(dest_reg, shadow_frame.GetVRegReference(receiver_reg));
575 ++dest_reg;
576 ++arg_offset;
577 }
Ian Rogersef7d42f2014-01-06 12:55:46 -0800578 for (uint32_t shorty_pos = 0; dest_reg < num_regs; ++shorty_pos, ++dest_reg, ++arg_offset) {
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700579 DCHECK_LT(shorty_pos + 1, shorty_len);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200580 const size_t src_reg = (is_range) ? vregC + arg_offset : arg[arg_offset];
581 switch (shorty[shorty_pos + 1]) {
582 case 'L': {
583 Object* o = shadow_frame.GetVRegReference(src_reg);
584 if (do_assignability_check && o != NULL) {
585 Class* arg_type = mh.GetClassFromTypeIdx(params->GetTypeItem(shorty_pos).type_idx_);
586 if (arg_type == NULL) {
587 CHECK(self->IsExceptionPending());
588 return false;
589 }
590 if (!o->VerifierInstanceOf(arg_type)) {
591 // This should never happen.
Ian Rogers1ff3c982014-08-12 02:30:58 -0700592 std::string temp1, temp2;
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200593 self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(),
594 "Ljava/lang/VirtualMachineError;",
595 "Invoking %s with bad arg %d, type '%s' not instance of '%s'",
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700596 method->GetName(), shorty_pos,
Ian Rogers1ff3c982014-08-12 02:30:58 -0700597 o->GetClass()->GetDescriptor(&temp1),
598 arg_type->GetDescriptor(&temp2));
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200599 return false;
600 }
Jeff Haoa3faaf42013-09-03 19:07:00 -0700601 }
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200602 new_shadow_frame->SetVRegReference(dest_reg, o);
603 break;
Jeff Haoa3faaf42013-09-03 19:07:00 -0700604 }
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200605 case 'J': case 'D': {
606 uint64_t wide_value = (static_cast<uint64_t>(shadow_frame.GetVReg(src_reg + 1)) << 32) |
607 static_cast<uint32_t>(shadow_frame.GetVReg(src_reg));
608 new_shadow_frame->SetVRegLong(dest_reg, wide_value);
609 ++dest_reg;
610 ++arg_offset;
611 break;
612 }
613 default:
614 new_shadow_frame->SetVReg(dest_reg, shadow_frame.GetVReg(src_reg));
615 break;
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200616 }
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200617 }
Andreas Gampe2a0d4ec2014-06-02 22:05:22 -0700618 // We're done with the construction.
619 self->ClearShadowFrameUnderConstruction();
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200620 } else {
621 // Fast path: no extra checks.
622 if (is_range) {
623 const uint16_t first_src_reg = inst->VRegC_3rc();
624 for (size_t src_reg = first_src_reg, dest_reg = first_dest_reg; dest_reg < num_regs;
625 ++dest_reg, ++src_reg) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800626 AssignRegister(new_shadow_frame, shadow_frame, dest_reg, src_reg);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200627 }
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200628 } else {
629 DCHECK_LE(num_ins, 5U);
630 uint16_t regList = inst->Fetch16(2);
631 uint16_t count = num_ins;
632 if (count == 5) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800633 AssignRegister(new_shadow_frame, shadow_frame, first_dest_reg + 4U, (inst_data >> 8) & 0x0f);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200634 --count;
635 }
636 for (size_t arg_index = 0; arg_index < count; ++arg_index, regList >>= 4) {
Ian Rogersef7d42f2014-01-06 12:55:46 -0800637 AssignRegister(new_shadow_frame, shadow_frame, first_dest_reg + arg_index, regList & 0x0f);
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200638 }
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200639 }
Andreas Gampe2a0d4ec2014-06-02 22:05:22 -0700640 self->EndAssertNoThreadSuspension(old_cause);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200641 }
642
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200643 // Do the call now.
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200644 if (LIKELY(Runtime::Current()->IsStarted())) {
Ian Rogers1d99e452014-01-02 17:36:41 -0800645 if (kIsDebugBuild && method->GetEntryPointFromInterpreter() == nullptr) {
646 LOG(FATAL) << "Attempt to invoke non-executable method: " << PrettyMethod(method);
647 }
Hiroshi Yamauchi563b47c2014-02-28 17:18:37 -0800648 if (kIsDebugBuild && Runtime::Current()->GetInstrumentation()->IsForcedInterpretOnly() &&
649 !method->IsNative() && !method->IsProxyMethod() &&
650 method->GetEntryPointFromInterpreter() == artInterpreterToCompiledCodeBridge) {
651 LOG(FATAL) << "Attempt to call compiled code when -Xint: " << PrettyMethod(method);
652 }
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200653 (method->GetEntryPointFromInterpreter())(self, mh, code_item, new_shadow_frame, result);
654 } else {
Sebastien Hertz9ace87b2013-09-27 11:48:09 +0200655 UnstartedRuntimeInvoke(self, mh, code_item, new_shadow_frame, result, first_dest_reg);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200656 }
657 return !self->IsExceptionPending();
658}
659
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100660template <bool is_range, bool do_access_check, bool transaction_active>
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200661bool DoFilledNewArray(const Instruction* inst, const ShadowFrame& shadow_frame,
662 Thread* self, JValue* result) {
663 DCHECK(inst->Opcode() == Instruction::FILLED_NEW_ARRAY ||
664 inst->Opcode() == Instruction::FILLED_NEW_ARRAY_RANGE);
665 const int32_t length = is_range ? inst->VRegA_3rc() : inst->VRegA_35c();
666 if (!is_range) {
667 // Checks FILLED_NEW_ARRAY's length does not exceed 5 arguments.
668 CHECK_LE(length, 5);
669 }
670 if (UNLIKELY(length < 0)) {
671 ThrowNegativeArraySizeException(length);
672 return false;
673 }
674 uint16_t type_idx = is_range ? inst->VRegB_3rc() : inst->VRegB_35c();
675 Class* arrayClass = ResolveVerifyAndClinit(type_idx, shadow_frame.GetMethod(),
676 self, false, do_access_check);
677 if (UNLIKELY(arrayClass == NULL)) {
678 DCHECK(self->IsExceptionPending());
679 return false;
680 }
681 CHECK(arrayClass->IsArrayClass());
682 Class* componentClass = arrayClass->GetComponentType();
683 if (UNLIKELY(componentClass->IsPrimitive() && !componentClass->IsPrimitiveInt())) {
684 if (componentClass->IsPrimitiveLong() || componentClass->IsPrimitiveDouble()) {
685 ThrowRuntimeException("Bad filled array request for type %s",
686 PrettyDescriptor(componentClass).c_str());
687 } else {
688 self->ThrowNewExceptionF(shadow_frame.GetCurrentLocationForThrow(),
689 "Ljava/lang/InternalError;",
Brian Carlstrom4fa0bcd2013-12-10 11:24:21 -0800690 "Found type %s; filled-new-array not implemented for anything but 'int'",
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200691 PrettyDescriptor(componentClass).c_str());
692 }
693 return false;
694 }
Ian Rogers6fac4472014-02-25 17:01:10 -0800695 Object* newArray = Array::Alloc<true>(self, arrayClass, length, arrayClass->GetComponentSize(),
696 Runtime::Current()->GetHeap()->GetCurrentAllocator());
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200697 if (UNLIKELY(newArray == NULL)) {
698 DCHECK(self->IsExceptionPending());
699 return false;
700 }
Sebastien Hertzabff6432014-01-27 18:01:39 +0100701 uint32_t arg[5]; // only used in filled-new-array.
702 uint32_t vregC; // only used in filled-new-array-range.
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200703 if (is_range) {
Sebastien Hertzabff6432014-01-27 18:01:39 +0100704 vregC = inst->VRegC_3rc();
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200705 } else {
Ian Rogers29a26482014-05-02 15:27:29 -0700706 inst->GetVarArgs(arg);
Sebastien Hertzabff6432014-01-27 18:01:39 +0100707 }
708 const bool is_primitive_int_component = componentClass->IsPrimitiveInt();
709 for (int32_t i = 0; i < length; ++i) {
710 size_t src_reg = is_range ? vregC + i : arg[i];
711 if (is_primitive_int_component) {
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100712 newArray->AsIntArray()->SetWithoutChecks<transaction_active>(i, shadow_frame.GetVReg(src_reg));
Sebastien Hertzabff6432014-01-27 18:01:39 +0100713 } else {
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100714 newArray->AsObjectArray<Object>()->SetWithoutChecks<transaction_active>(i, shadow_frame.GetVRegReference(src_reg));
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200715 }
716 }
717
718 result->SetL(newArray);
719 return true;
720}
721
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100722// TODO fix thread analysis: should be SHARED_LOCKS_REQUIRED(Locks::mutator_lock_).
723template<typename T>
724static void RecordArrayElementsInTransactionImpl(mirror::PrimitiveArray<T>* array, int32_t count)
725 NO_THREAD_SAFETY_ANALYSIS {
726 Runtime* runtime = Runtime::Current();
727 for (int32_t i = 0; i < count; ++i) {
728 runtime->RecordWriteArray(array, i, array->GetWithoutChecks(i));
729 }
730}
731
732void RecordArrayElementsInTransaction(mirror::Array* array, int32_t count)
733 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
734 DCHECK(Runtime::Current()->IsActiveTransaction());
735 DCHECK(array != nullptr);
736 DCHECK_LE(count, array->GetLength());
737 Primitive::Type primitive_component_type = array->GetClass()->GetComponentType()->GetPrimitiveType();
738 switch (primitive_component_type) {
739 case Primitive::kPrimBoolean:
740 RecordArrayElementsInTransactionImpl(array->AsBooleanArray(), count);
741 break;
742 case Primitive::kPrimByte:
743 RecordArrayElementsInTransactionImpl(array->AsByteArray(), count);
744 break;
745 case Primitive::kPrimChar:
746 RecordArrayElementsInTransactionImpl(array->AsCharArray(), count);
747 break;
748 case Primitive::kPrimShort:
749 RecordArrayElementsInTransactionImpl(array->AsShortArray(), count);
750 break;
751 case Primitive::kPrimInt:
752 case Primitive::kPrimFloat:
753 RecordArrayElementsInTransactionImpl(array->AsIntArray(), count);
754 break;
755 case Primitive::kPrimLong:
756 case Primitive::kPrimDouble:
757 RecordArrayElementsInTransactionImpl(array->AsLongArray(), count);
758 break;
759 default:
760 LOG(FATAL) << "Unsupported primitive type " << primitive_component_type
761 << " in fill-array-data";
762 break;
763 }
764}
765
Sebastien Hertz4e99b3d2014-06-24 14:35:40 +0200766// Helper function to deal with class loading in an unstarted runtime.
Mathieu Chartierbf99f772014-08-23 16:37:27 -0700767static void UnstartedRuntimeFindClass(Thread* self, ConstHandle<mirror::String> className,
768 ConstHandle<mirror::ClassLoader> class_loader, JValue* result,
Sebastien Hertz4e99b3d2014-06-24 14:35:40 +0200769 const std::string& method_name, bool initialize_class,
770 bool abort_if_not_found)
771 SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) {
772 CHECK(className.Get() != nullptr);
773 std::string descriptor(DotToDescriptor(className->ToModifiedUtf8().c_str()));
774 ClassLinker* class_linker = Runtime::Current()->GetClassLinker();
775
776 Class* found = class_linker->FindClass(self, descriptor.c_str(), class_loader);
777 if (found == nullptr && abort_if_not_found) {
778 if (!self->IsExceptionPending()) {
779 AbortTransaction(self, "%s failed in un-started runtime for class: %s",
Ian Rogers1ff3c982014-08-12 02:30:58 -0700780 method_name.c_str(), PrettyDescriptor(descriptor.c_str()).c_str());
Sebastien Hertz4e99b3d2014-06-24 14:35:40 +0200781 }
782 return;
783 }
784 if (found != nullptr && initialize_class) {
785 StackHandleScope<1> hs(self);
786 Handle<mirror::Class> h_class(hs.NewHandle(found));
787 if (!class_linker->EnsureInitialized(h_class, true, true)) {
788 CHECK(self->IsExceptionPending());
789 return;
790 }
791 }
792 result->SetL(found);
793}
794
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200795static void UnstartedRuntimeInvoke(Thread* self, MethodHelper& mh,
796 const DexFile::CodeItem* code_item, ShadowFrame* shadow_frame,
797 JValue* result, size_t arg_offset) {
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200798 // In a runtime that's not started we intercept certain methods to avoid complicated dependency
799 // problems in core libraries.
800 std::string name(PrettyMethod(shadow_frame->GetMethod()));
Sebastien Hertz4e99b3d2014-06-24 14:35:40 +0200801 if (name == "java.lang.Class java.lang.Class.forName(java.lang.String)") {
802 // TODO: Support for the other variants that take more arguments should also be added.
803 mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset)->AsString();
804 StackHandleScope<1> hs(self);
805 Handle<mirror::String> h_class_name(hs.NewHandle(class_name));
806 UnstartedRuntimeFindClass(self, h_class_name, NullHandle<mirror::ClassLoader>(), result, name,
807 true, true);
808 } else if (name == "java.lang.Class java.lang.VMClassLoader.loadClass(java.lang.String, boolean)") {
809 mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset)->AsString();
810 StackHandleScope<1> hs(self);
811 Handle<mirror::String> h_class_name(hs.NewHandle(class_name));
812 UnstartedRuntimeFindClass(self, h_class_name, NullHandle<mirror::ClassLoader>(), result, name,
813 false, true);
814 } else if (name == "java.lang.Class java.lang.VMClassLoader.findLoadedClass(java.lang.ClassLoader, java.lang.String)") {
815 mirror::String* class_name = shadow_frame->GetVRegReference(arg_offset + 1)->AsString();
816 mirror::ClassLoader* class_loader =
817 down_cast<mirror::ClassLoader*>(shadow_frame->GetVRegReference(arg_offset));
818 StackHandleScope<2> hs(self);
819 Handle<mirror::String> h_class_name(hs.NewHandle(class_name));
820 Handle<mirror::ClassLoader> h_class_loader(hs.NewHandle(class_loader));
821 UnstartedRuntimeFindClass(self, h_class_name, h_class_loader, result, name, false, false);
Ian Rogersc45b8b52014-05-03 01:39:59 -0700822 } else if (name == "java.lang.Class java.lang.Void.lookupType()") {
823 result->SetL(Runtime::Current()->GetClassLinker()->FindPrimitiveClass('V'));
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200824 } else if (name == "java.lang.Object java.lang.Class.newInstance()") {
825 Class* klass = shadow_frame->GetVRegReference(arg_offset)->AsClass();
826 ArtMethod* c = klass->FindDeclaredDirectMethod("<init>", "()V");
827 CHECK(c != NULL);
Mathieu Chartiereb8167a2014-05-07 15:43:14 -0700828 StackHandleScope<1> hs(self);
829 Handle<Object> obj(hs.NewHandle(klass->AllocObject(self)));
830 CHECK(obj.Get() != NULL);
831 EnterInterpreterFromInvoke(self, c, obj.Get(), NULL, NULL);
832 result->SetL(obj.Get());
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200833 } else if (name == "java.lang.reflect.Field java.lang.Class.getDeclaredField(java.lang.String)") {
834 // Special managed code cut-out to allow field lookup in a un-started runtime that'd fail
835 // going the reflective Dex way.
836 Class* klass = shadow_frame->GetVRegReference(arg_offset)->AsClass();
837 String* name = shadow_frame->GetVRegReference(arg_offset + 1)->AsString();
838 ArtField* found = NULL;
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200839 ObjectArray<ArtField>* fields = klass->GetIFields();
840 for (int32_t i = 0; i < fields->GetLength() && found == NULL; ++i) {
841 ArtField* f = fields->Get(i);
Mathieu Chartier61c5ebc2014-06-05 17:42:53 -0700842 if (name->Equals(f->GetName())) {
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200843 found = f;
844 }
845 }
846 if (found == NULL) {
847 fields = klass->GetSFields();
848 for (int32_t i = 0; i < fields->GetLength() && found == NULL; ++i) {
849 ArtField* f = fields->Get(i);
Mathieu Chartier61c5ebc2014-06-05 17:42:53 -0700850 if (name->Equals(f->GetName())) {
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200851 found = f;
852 }
853 }
854 }
855 CHECK(found != NULL)
856 << "Failed to find field in Class.getDeclaredField in un-started runtime. name="
857 << name->ToModifiedUtf8() << " class=" << PrettyDescriptor(klass);
858 // TODO: getDeclaredField calls GetType once the field is found to ensure a
859 // NoClassDefFoundError is thrown if the field's type cannot be resolved.
860 Class* jlr_Field = self->DecodeJObject(WellKnownClasses::java_lang_reflect_Field)->AsClass();
Mathieu Chartiereb8167a2014-05-07 15:43:14 -0700861 StackHandleScope<1> hs(self);
862 Handle<Object> field(hs.NewHandle(jlr_Field->AllocNonMovableObject(self)));
863 CHECK(field.Get() != NULL);
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200864 ArtMethod* c = jlr_Field->FindDeclaredDirectMethod("<init>", "(Ljava/lang/reflect/ArtField;)V");
865 uint32_t args[1];
Ian Rogersef7d42f2014-01-06 12:55:46 -0800866 args[0] = StackReference<mirror::Object>::FromMirrorPtr(found).AsVRegValue();
Mathieu Chartiereb8167a2014-05-07 15:43:14 -0700867 EnterInterpreterFromInvoke(self, c, field.Get(), args, NULL);
868 result->SetL(field.Get());
Ian Rogersc45b8b52014-05-03 01:39:59 -0700869 } else if (name == "int java.lang.Object.hashCode()") {
870 Object* obj = shadow_frame->GetVRegReference(arg_offset);
871 result->SetI(obj->IdentityHashCode());
872 } else if (name == "java.lang.String java.lang.reflect.ArtMethod.getMethodName(java.lang.reflect.ArtMethod)") {
Mathieu Chartierbfd9a432014-05-21 17:43:44 -0700873 StackHandleScope<1> hs(self);
874 MethodHelper mh(hs.NewHandle(shadow_frame->GetVRegReference(arg_offset)->AsArtMethod()));
875 result->SetL(mh.GetNameAsString(self));
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200876 } else if (name == "void java.lang.System.arraycopy(java.lang.Object, int, java.lang.Object, int, int)" ||
877 name == "void java.lang.System.arraycopy(char[], int, char[], int, int)") {
878 // Special case array copying without initializing System.
879 Class* ctype = shadow_frame->GetVRegReference(arg_offset)->GetClass()->GetComponentType();
880 jint srcPos = shadow_frame->GetVReg(arg_offset + 1);
881 jint dstPos = shadow_frame->GetVReg(arg_offset + 3);
882 jint length = shadow_frame->GetVReg(arg_offset + 4);
883 if (!ctype->IsPrimitive()) {
884 ObjectArray<Object>* src = shadow_frame->GetVRegReference(arg_offset)->AsObjectArray<Object>();
885 ObjectArray<Object>* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsObjectArray<Object>();
886 for (jint i = 0; i < length; ++i) {
887 dst->Set(dstPos + i, src->Get(srcPos + i));
888 }
889 } else if (ctype->IsPrimitiveChar()) {
890 CharArray* src = shadow_frame->GetVRegReference(arg_offset)->AsCharArray();
891 CharArray* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsCharArray();
892 for (jint i = 0; i < length; ++i) {
893 dst->Set(dstPos + i, src->Get(srcPos + i));
894 }
895 } else if (ctype->IsPrimitiveInt()) {
896 IntArray* src = shadow_frame->GetVRegReference(arg_offset)->AsIntArray();
897 IntArray* dst = shadow_frame->GetVRegReference(arg_offset + 2)->AsIntArray();
898 for (jint i = 0; i < length; ++i) {
899 dst->Set(dstPos + i, src->Get(srcPos + i));
900 }
901 } else {
Ian Rogersc45b8b52014-05-03 01:39:59 -0700902 self->ThrowNewExceptionF(self->GetCurrentLocationForThrow(), "Ljava/lang/InternalError;",
903 "Unimplemented System.arraycopy for type '%s'",
904 PrettyDescriptor(ctype).c_str());
905 }
906 } else if (name == "java.lang.Object java.lang.ThreadLocal.get()") {
907 std::string caller(PrettyMethod(shadow_frame->GetLink()->GetMethod()));
908 if (caller == "java.lang.String java.lang.IntegralToString.convertInt(java.lang.AbstractStringBuilder, int)") {
909 // Allocate non-threadlocal buffer.
910 result->SetL(mirror::CharArray::Alloc(self, 11));
911 } else {
912 self->ThrowNewException(self->GetCurrentLocationForThrow(), "Ljava/lang/InternalError;",
913 "Unimplemented ThreadLocal.get");
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200914 }
915 } else {
916 // Not special, continue with regular interpreter execution.
917 artInterpreterToInterpreterBridge(self, mh, code_item, shadow_frame, result);
918 }
919}
920
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200921// Explicit DoCall template function declarations.
Sebastien Hertzc6714852013-09-30 16:42:32 +0200922#define EXPLICIT_DO_CALL_TEMPLATE_DECL(_is_range, _do_assignability_check) \
923 template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) \
Sebastien Hertz9119c5f2013-12-16 11:31:45 +0100924 bool DoCall<_is_range, _do_assignability_check>(ArtMethod* method, Thread* self, \
925 ShadowFrame& shadow_frame, \
Sebastien Hertzc6714852013-09-30 16:42:32 +0200926 const Instruction* inst, uint16_t inst_data, \
927 JValue* result)
Sebastien Hertzc61124b2013-09-10 11:44:19 +0200928EXPLICIT_DO_CALL_TEMPLATE_DECL(false, false);
929EXPLICIT_DO_CALL_TEMPLATE_DECL(false, true);
930EXPLICIT_DO_CALL_TEMPLATE_DECL(true, false);
931EXPLICIT_DO_CALL_TEMPLATE_DECL(true, true);
932#undef EXPLICIT_DO_CALL_TEMPLATE_DECL
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200933
934// Explicit DoFilledNewArray template function declarations.
Sebastien Hertzd2fe10a2014-01-15 10:20:56 +0100935#define EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(_is_range_, _check, _transaction_active) \
936 template SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) \
937 bool DoFilledNewArray<_is_range_, _check, _transaction_active>(const Instruction* inst, \
938 const ShadowFrame& shadow_frame, \
939 Thread* self, JValue* result)
940#define EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL(_transaction_active) \
941 EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(false, false, _transaction_active); \
942 EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(false, true, _transaction_active); \
943 EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(true, false, _transaction_active); \
944 EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL(true, true, _transaction_active)
945EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL(false);
946EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL(true);
947#undef EXPLICIT_DO_FILLED_NEW_ARRAY_ALL_TEMPLATE_DECL
Sebastien Hertz8ece0502013-08-07 11:26:41 +0200948#undef EXPLICIT_DO_FILLED_NEW_ARRAY_TEMPLATE_DECL
949
950} // namespace interpreter
951} // namespace art