1 /*
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 "atomic.h"
18 #include "entrypoints/interpreter/interpreter_entrypoints.h"
19 #include "entrypoints/jni/jni_entrypoints.h"
20 #include "entrypoints/quick/quick_alloc_entrypoints.h"
21 #include "entrypoints/quick/quick_default_externs.h"
22 #include "entrypoints/quick/quick_entrypoints.h"
23 #include "entrypoints/entrypoint_utils.h"
24 #include "entrypoints/math_entrypoints.h"
25 #include "entrypoints/runtime_asm_entrypoints.h"
26 #include "entrypoints_direct_mips.h"
27 #include "interpreter/interpreter.h"
28 
29 namespace art {
30 
31 // Cast entrypoints.
32 extern "C" uint32_t artIsAssignableFromCode(const mirror::Class* klass,
33                                             const mirror::Class* ref_class);
34 
35 // Math entrypoints.
36 extern int32_t CmpgDouble(double a, double b);
37 extern int32_t CmplDouble(double a, double b);
38 extern int32_t CmpgFloat(float a, float b);
39 extern int32_t CmplFloat(float a, float b);
40 extern "C" int64_t artLmul(int64_t a, int64_t b);
41 extern "C" int64_t artLdiv(int64_t a, int64_t b);
42 extern "C" int64_t artLmod(int64_t a, int64_t b);
43 
44 // Math conversions.
45 extern "C" int32_t __fixsfsi(float op1);      // FLOAT_TO_INT
46 extern "C" int32_t __fixdfsi(double op1);     // DOUBLE_TO_INT
47 extern "C" float __floatdisf(int64_t op1);    // LONG_TO_FLOAT
48 extern "C" double __floatdidf(int64_t op1);   // LONG_TO_DOUBLE
49 extern "C" int64_t __fixsfdi(float op1);      // FLOAT_TO_LONG
50 extern "C" int64_t __fixdfdi(double op1);     // DOUBLE_TO_LONG
51 
52 // Single-precision FP arithmetics.
53 extern "C" float fmodf(float a, float b);      // REM_FLOAT[_2ADDR]
54 
55 // Double-precision FP arithmetics.
56 extern "C" double fmod(double a, double b);     // REM_DOUBLE[_2ADDR]
57 
58 // Long long arithmetics - REM_LONG[_2ADDR] and DIV_LONG[_2ADDR]
59 extern "C" int64_t __divdi3(int64_t, int64_t);
60 extern "C" int64_t __moddi3(int64_t, int64_t);
61 
InitEntryPoints(InterpreterEntryPoints * ipoints,JniEntryPoints * jpoints,QuickEntryPoints * qpoints)62 void InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints,
63                      QuickEntryPoints* qpoints) {
64   // Interpreter
65   ipoints->pInterpreterToInterpreterBridge = artInterpreterToInterpreterBridge;
66   ipoints->pInterpreterToCompiledCodeBridge = artInterpreterToCompiledCodeBridge;
67 
68   // JNI
69   jpoints->pDlsymLookup = art_jni_dlsym_lookup_stub;
70 
71   // Alloc
72   ResetQuickAllocEntryPoints(qpoints);
73 
74   // Cast
75   qpoints->pInstanceofNonTrivial = artIsAssignableFromCode;
76   static_assert(IsDirectEntrypoint(kQuickInstanceofNonTrivial), "Direct C stub not marked direct.");
77   qpoints->pCheckCast = art_quick_check_cast;
78   static_assert(!IsDirectEntrypoint(kQuickCheckCast), "Non-direct C stub marked direct.");
79 
80   // DexCache
81   qpoints->pInitializeStaticStorage = art_quick_initialize_static_storage;
82   static_assert(!IsDirectEntrypoint(kQuickInitializeStaticStorage),
83                 "Non-direct C stub marked direct.");
84   qpoints->pInitializeTypeAndVerifyAccess = art_quick_initialize_type_and_verify_access;
85   static_assert(!IsDirectEntrypoint(kQuickInitializeTypeAndVerifyAccess),
86                 "Non-direct C stub marked direct.");
87   qpoints->pInitializeType = art_quick_initialize_type;
88   static_assert(!IsDirectEntrypoint(kQuickInitializeType), "Non-direct C stub marked direct.");
89   qpoints->pResolveString = art_quick_resolve_string;
90   static_assert(!IsDirectEntrypoint(kQuickResolveString), "Non-direct C stub marked direct.");
91 
92   // Field
93   qpoints->pSet8Instance = art_quick_set8_instance;
94   static_assert(!IsDirectEntrypoint(kQuickSet8Instance), "Non-direct C stub marked direct.");
95   qpoints->pSet8Static = art_quick_set8_static;
96   static_assert(!IsDirectEntrypoint(kQuickSet8Static), "Non-direct C stub marked direct.");
97   qpoints->pSet16Instance = art_quick_set16_instance;
98   static_assert(!IsDirectEntrypoint(kQuickSet16Instance), "Non-direct C stub marked direct.");
99   qpoints->pSet16Static = art_quick_set16_static;
100   static_assert(!IsDirectEntrypoint(kQuickSet16Static), "Non-direct C stub marked direct.");
101   qpoints->pSet32Instance = art_quick_set32_instance;
102   static_assert(!IsDirectEntrypoint(kQuickSet32Instance), "Non-direct C stub marked direct.");
103   qpoints->pSet32Static = art_quick_set32_static;
104   static_assert(!IsDirectEntrypoint(kQuickSet32Static), "Non-direct C stub marked direct.");
105   qpoints->pSet64Instance = art_quick_set64_instance;
106   static_assert(!IsDirectEntrypoint(kQuickSet64Instance), "Non-direct C stub marked direct.");
107   qpoints->pSet64Static = art_quick_set64_static;
108   static_assert(!IsDirectEntrypoint(kQuickSet64Static), "Non-direct C stub marked direct.");
109   qpoints->pSetObjInstance = art_quick_set_obj_instance;
110   static_assert(!IsDirectEntrypoint(kQuickSetObjInstance), "Non-direct C stub marked direct.");
111   qpoints->pSetObjStatic = art_quick_set_obj_static;
112   static_assert(!IsDirectEntrypoint(kQuickSetObjStatic), "Non-direct C stub marked direct.");
113   qpoints->pGetBooleanInstance = art_quick_get_boolean_instance;
114   static_assert(!IsDirectEntrypoint(kQuickGetBooleanInstance), "Non-direct C stub marked direct.");
115   qpoints->pGetByteInstance = art_quick_get_byte_instance;
116   static_assert(!IsDirectEntrypoint(kQuickGetByteInstance), "Non-direct C stub marked direct.");
117   qpoints->pGetCharInstance = art_quick_get_char_instance;
118   static_assert(!IsDirectEntrypoint(kQuickGetCharInstance), "Non-direct C stub marked direct.");
119   qpoints->pGetShortInstance = art_quick_get_short_instance;
120   static_assert(!IsDirectEntrypoint(kQuickGetShortInstance), "Non-direct C stub marked direct.");
121   qpoints->pGet32Instance = art_quick_get32_instance;
122   static_assert(!IsDirectEntrypoint(kQuickGet32Instance), "Non-direct C stub marked direct.");
123   qpoints->pGet64Instance = art_quick_get64_instance;
124   static_assert(!IsDirectEntrypoint(kQuickGet64Instance), "Non-direct C stub marked direct.");
125   qpoints->pGetObjInstance = art_quick_get_obj_instance;
126   static_assert(!IsDirectEntrypoint(kQuickGetObjInstance), "Non-direct C stub marked direct.");
127   qpoints->pGetBooleanStatic = art_quick_get_boolean_static;
128   static_assert(!IsDirectEntrypoint(kQuickGetBooleanStatic), "Non-direct C stub marked direct.");
129   qpoints->pGetByteStatic = art_quick_get_byte_static;
130   static_assert(!IsDirectEntrypoint(kQuickGetByteStatic), "Non-direct C stub marked direct.");
131   qpoints->pGetCharStatic = art_quick_get_char_static;
132   static_assert(!IsDirectEntrypoint(kQuickGetCharStatic), "Non-direct C stub marked direct.");
133   qpoints->pGetShortStatic = art_quick_get_short_static;
134   static_assert(!IsDirectEntrypoint(kQuickGetShortStatic), "Non-direct C stub marked direct.");
135   qpoints->pGet32Static = art_quick_get32_static;
136   static_assert(!IsDirectEntrypoint(kQuickGet32Static), "Non-direct C stub marked direct.");
137   qpoints->pGet64Static = art_quick_get64_static;
138   static_assert(!IsDirectEntrypoint(kQuickGet64Static), "Non-direct C stub marked direct.");
139   qpoints->pGetObjStatic = art_quick_get_obj_static;
140   static_assert(!IsDirectEntrypoint(kQuickGetObjStatic), "Non-direct C stub marked direct.");
141 
142   // Array
143   qpoints->pAputObjectWithNullAndBoundCheck = art_quick_aput_obj_with_null_and_bound_check;
144   static_assert(!IsDirectEntrypoint(kQuickAputObjectWithNullAndBoundCheck),
145                 "Non-direct C stub marked direct.");
146   qpoints->pAputObjectWithBoundCheck = art_quick_aput_obj_with_bound_check;
147   static_assert(!IsDirectEntrypoint(kQuickAputObjectWithBoundCheck),
148                 "Non-direct C stub marked direct.");
149   qpoints->pAputObject = art_quick_aput_obj;
150   static_assert(!IsDirectEntrypoint(kQuickAputObject), "Non-direct C stub marked direct.");
151   qpoints->pHandleFillArrayData = art_quick_handle_fill_data;
152   static_assert(!IsDirectEntrypoint(kQuickHandleFillArrayData), "Non-direct C stub marked direct.");
153 
154   // JNI
155   qpoints->pJniMethodStart = JniMethodStart;
156   static_assert(!IsDirectEntrypoint(kQuickJniMethodStart), "Non-direct C stub marked direct.");
157   qpoints->pJniMethodStartSynchronized = JniMethodStartSynchronized;
158   static_assert(!IsDirectEntrypoint(kQuickJniMethodStartSynchronized),
159                 "Non-direct C stub marked direct.");
160   qpoints->pJniMethodEnd = JniMethodEnd;
161   static_assert(!IsDirectEntrypoint(kQuickJniMethodEnd), "Non-direct C stub marked direct.");
162   qpoints->pJniMethodEndSynchronized = JniMethodEndSynchronized;
163   static_assert(!IsDirectEntrypoint(kQuickJniMethodEndSynchronized),
164                 "Non-direct C stub marked direct.");
165   qpoints->pJniMethodEndWithReference = JniMethodEndWithReference;
166   static_assert(!IsDirectEntrypoint(kQuickJniMethodEndWithReference),
167                 "Non-direct C stub marked direct.");
168   qpoints->pJniMethodEndWithReferenceSynchronized = JniMethodEndWithReferenceSynchronized;
169   static_assert(!IsDirectEntrypoint(kQuickJniMethodEndWithReferenceSynchronized),
170                 "Non-direct C stub marked direct.");
171   qpoints->pQuickGenericJniTrampoline = art_quick_generic_jni_trampoline;
172   static_assert(!IsDirectEntrypoint(kQuickQuickGenericJniTrampoline),
173                 "Non-direct C stub marked direct.");
174 
175   // Locks
176   qpoints->pLockObject = art_quick_lock_object;
177   static_assert(!IsDirectEntrypoint(kQuickLockObject), "Non-direct C stub marked direct.");
178   qpoints->pUnlockObject = art_quick_unlock_object;
179   static_assert(!IsDirectEntrypoint(kQuickUnlockObject), "Non-direct C stub marked direct.");
180 
181   // Math
182   qpoints->pCmpgDouble = CmpgDouble;
183   static_assert(IsDirectEntrypoint(kQuickCmpgDouble), "Direct C stub not marked direct.");
184   qpoints->pCmpgFloat = CmpgFloat;
185   static_assert(IsDirectEntrypoint(kQuickCmpgFloat), "Direct C stub not marked direct.");
186   qpoints->pCmplDouble = CmplDouble;
187   static_assert(IsDirectEntrypoint(kQuickCmplDouble), "Direct C stub not marked direct.");
188   qpoints->pCmplFloat = CmplFloat;
189   static_assert(IsDirectEntrypoint(kQuickCmplFloat), "Direct C stub not marked direct.");
190   qpoints->pFmod = fmod;
191   static_assert(IsDirectEntrypoint(kQuickFmod), "Direct C stub not marked direct.");
192   qpoints->pL2d = art_l2d;
193   static_assert(IsDirectEntrypoint(kQuickL2d), "Direct C stub not marked direct.");
194   qpoints->pFmodf = fmodf;
195   static_assert(IsDirectEntrypoint(kQuickFmodf), "Direct C stub not marked direct.");
196   qpoints->pL2f = art_l2f;
197   static_assert(IsDirectEntrypoint(kQuickL2f), "Direct C stub not marked direct.");
198   qpoints->pD2iz = art_d2i;
199   static_assert(IsDirectEntrypoint(kQuickD2iz), "Direct C stub not marked direct.");
200   qpoints->pF2iz = art_f2i;
201   static_assert(IsDirectEntrypoint(kQuickF2iz), "Direct C stub not marked direct.");
202   qpoints->pIdivmod = nullptr;
203   qpoints->pD2l = art_d2l;
204   static_assert(IsDirectEntrypoint(kQuickD2l), "Direct C stub not marked direct.");
205   qpoints->pF2l = art_f2l;
206   static_assert(IsDirectEntrypoint(kQuickF2l), "Direct C stub not marked direct.");
207   qpoints->pLdiv = artLdiv;
208   static_assert(IsDirectEntrypoint(kQuickLdiv), "Direct C stub not marked direct.");
209   qpoints->pLmod = artLmod;
210   static_assert(IsDirectEntrypoint(kQuickLmod), "Direct C stub not marked direct.");
211   qpoints->pLmul = artLmul;
212   static_assert(IsDirectEntrypoint(kQuickLmul), "Direct C stub not marked direct.");
213   qpoints->pShlLong = art_quick_shl_long;
214   static_assert(!IsDirectEntrypoint(kQuickShlLong), "Non-direct C stub marked direct.");
215   qpoints->pShrLong = art_quick_shr_long;
216   static_assert(!IsDirectEntrypoint(kQuickShrLong), "Non-direct C stub marked direct.");
217   qpoints->pUshrLong = art_quick_ushr_long;
218   static_assert(!IsDirectEntrypoint(kQuickUshrLong), "Non-direct C stub marked direct.");
219 
220   // Intrinsics
221   qpoints->pIndexOf = art_quick_indexof;
222   static_assert(!IsDirectEntrypoint(kQuickIndexOf), "Non-direct C stub marked direct.");
223   qpoints->pStringCompareTo = art_quick_string_compareto;
224   static_assert(!IsDirectEntrypoint(kQuickStringCompareTo), "Non-direct C stub marked direct.");
225   qpoints->pMemcpy = memcpy;
226 
227   // Invocation
228   qpoints->pQuickImtConflictTrampoline = art_quick_imt_conflict_trampoline;
229   qpoints->pQuickResolutionTrampoline = art_quick_resolution_trampoline;
230   qpoints->pQuickToInterpreterBridge = art_quick_to_interpreter_bridge;
231   qpoints->pInvokeDirectTrampolineWithAccessCheck =
232       art_quick_invoke_direct_trampoline_with_access_check;
233   static_assert(!IsDirectEntrypoint(kQuickInvokeDirectTrampolineWithAccessCheck),
234                 "Non-direct C stub marked direct.");
235   qpoints->pInvokeInterfaceTrampolineWithAccessCheck =
236       art_quick_invoke_interface_trampoline_with_access_check;
237   static_assert(!IsDirectEntrypoint(kQuickInvokeInterfaceTrampolineWithAccessCheck),
238                 "Non-direct C stub marked direct.");
239   qpoints->pInvokeStaticTrampolineWithAccessCheck =
240       art_quick_invoke_static_trampoline_with_access_check;
241   static_assert(!IsDirectEntrypoint(kQuickInvokeStaticTrampolineWithAccessCheck),
242                 "Non-direct C stub marked direct.");
243   qpoints->pInvokeSuperTrampolineWithAccessCheck =
244       art_quick_invoke_super_trampoline_with_access_check;
245   static_assert(!IsDirectEntrypoint(kQuickInvokeSuperTrampolineWithAccessCheck),
246                 "Non-direct C stub marked direct.");
247   qpoints->pInvokeVirtualTrampolineWithAccessCheck =
248       art_quick_invoke_virtual_trampoline_with_access_check;
249   static_assert(!IsDirectEntrypoint(kQuickInvokeVirtualTrampolineWithAccessCheck),
250                 "Non-direct C stub marked direct.");
251 
252   // Thread
253   qpoints->pTestSuspend = art_quick_test_suspend;
254   static_assert(!IsDirectEntrypoint(kQuickTestSuspend), "Non-direct C stub marked direct.");
255 
256   // Throws
257   qpoints->pDeliverException = art_quick_deliver_exception;
258   static_assert(!IsDirectEntrypoint(kQuickDeliverException), "Non-direct C stub marked direct.");
259   qpoints->pThrowArrayBounds = art_quick_throw_array_bounds;
260   static_assert(!IsDirectEntrypoint(kQuickThrowArrayBounds), "Non-direct C stub marked direct.");
261   qpoints->pThrowDivZero = art_quick_throw_div_zero;
262   static_assert(!IsDirectEntrypoint(kQuickThrowDivZero), "Non-direct C stub marked direct.");
263   qpoints->pThrowNoSuchMethod = art_quick_throw_no_such_method;
264   static_assert(!IsDirectEntrypoint(kQuickThrowNoSuchMethod), "Non-direct C stub marked direct.");
265   qpoints->pThrowNullPointer = art_quick_throw_null_pointer_exception;
266   static_assert(!IsDirectEntrypoint(kQuickThrowNullPointer), "Non-direct C stub marked direct.");
267   qpoints->pThrowStackOverflow = art_quick_throw_stack_overflow;
268   static_assert(!IsDirectEntrypoint(kQuickThrowStackOverflow), "Non-direct C stub marked direct.");
269 
270   // Deoptimize
271   qpoints->pDeoptimize = art_quick_deoptimize;
272   static_assert(!IsDirectEntrypoint(kQuickDeoptimize), "Non-direct C stub marked direct.");
273 
274   // Atomic 64-bit load/store
275   qpoints->pA64Load = QuasiAtomic::Read64;
276   static_assert(IsDirectEntrypoint(kQuickA64Load), "Non-direct C stub marked direct.");
277   qpoints->pA64Store = QuasiAtomic::Write64;
278   static_assert(IsDirectEntrypoint(kQuickA64Store), "Non-direct C stub marked direct.");
279 
280   qpoints->pReadBarrierJni = ReadBarrierJni;
281   static_assert(!IsDirectEntrypoint(kQuickReadBarrierJni), "Non-direct C stub marked direct.");
282 };
283 
284 }  // namespace art
285