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/jni/jni_entrypoints.h"
19 #include "entrypoints/quick/quick_alloc_entrypoints.h"
20 #include "entrypoints/quick/quick_default_externs.h"
21 #include "entrypoints/quick/quick_entrypoints.h"
22 #include "entrypoints/entrypoint_utils.h"
23 #include "entrypoints/math_entrypoints.h"
24 #include "entrypoints/runtime_asm_entrypoints.h"
25 #include "entrypoints_direct_mips.h"
26 #include "interpreter/interpreter.h"
27 
28 namespace art {
29 
30 // Cast entrypoints.
31 extern "C" uint32_t artIsAssignableFromCode(const mirror::Class* klass,
32                                             const mirror::Class* ref_class);
33 
34 // Math entrypoints.
35 extern int32_t CmpgDouble(double a, double b);
36 extern int32_t CmplDouble(double a, double b);
37 extern int32_t CmpgFloat(float a, float b);
38 extern int32_t CmplFloat(float a, float b);
39 extern "C" int64_t artLmul(int64_t a, int64_t b);
40 extern "C" int64_t artLdiv(int64_t a, int64_t b);
41 extern "C" int64_t artLmod(int64_t a, int64_t b);
42 
43 // Math conversions.
44 extern "C" int32_t __fixsfsi(float op1);      // FLOAT_TO_INT
45 extern "C" int32_t __fixdfsi(double op1);     // DOUBLE_TO_INT
46 extern "C" float __floatdisf(int64_t op1);    // LONG_TO_FLOAT
47 extern "C" double __floatdidf(int64_t op1);   // LONG_TO_DOUBLE
48 extern "C" int64_t __fixsfdi(float op1);      // FLOAT_TO_LONG
49 extern "C" int64_t __fixdfdi(double op1);     // DOUBLE_TO_LONG
50 
51 // Single-precision FP arithmetics.
52 extern "C" float fmodf(float a, float b);      // REM_FLOAT[_2ADDR]
53 
54 // Double-precision FP arithmetics.
55 extern "C" double fmod(double a, double b);     // REM_DOUBLE[_2ADDR]
56 
57 // Long long arithmetics - REM_LONG[_2ADDR] and DIV_LONG[_2ADDR]
58 extern "C" int64_t __divdi3(int64_t, int64_t);
59 extern "C" int64_t __moddi3(int64_t, int64_t);
60 
InitEntryPoints(JniEntryPoints * jpoints,QuickEntryPoints * qpoints)61 void InitEntryPoints(JniEntryPoints* jpoints, QuickEntryPoints* qpoints) {
62   // Note: MIPS has asserts checking for the type of entrypoint. Don't move it
63   //       to InitDefaultEntryPoints().
64 
65   // JNI
66   jpoints->pDlsymLookup = art_jni_dlsym_lookup_stub;
67 
68   // Alloc
69   ResetQuickAllocEntryPoints(qpoints);
70 
71   // Cast
72   qpoints->pInstanceofNonTrivial = artIsAssignableFromCode;
73   static_assert(IsDirectEntrypoint(kQuickInstanceofNonTrivial), "Direct C stub not marked direct.");
74   qpoints->pCheckCast = art_quick_check_cast;
75   static_assert(!IsDirectEntrypoint(kQuickCheckCast), "Non-direct C stub marked direct.");
76 
77   // DexCache
78   qpoints->pInitializeStaticStorage = art_quick_initialize_static_storage;
79   static_assert(!IsDirectEntrypoint(kQuickInitializeStaticStorage),
80                 "Non-direct C stub marked direct.");
81   qpoints->pInitializeTypeAndVerifyAccess = art_quick_initialize_type_and_verify_access;
82   static_assert(!IsDirectEntrypoint(kQuickInitializeTypeAndVerifyAccess),
83                 "Non-direct C stub marked direct.");
84   qpoints->pInitializeType = art_quick_initialize_type;
85   static_assert(!IsDirectEntrypoint(kQuickInitializeType), "Non-direct C stub marked direct.");
86   qpoints->pResolveString = art_quick_resolve_string;
87   static_assert(!IsDirectEntrypoint(kQuickResolveString), "Non-direct C stub marked direct.");
88 
89   // Field
90   qpoints->pSet8Instance = art_quick_set8_instance;
91   static_assert(!IsDirectEntrypoint(kQuickSet8Instance), "Non-direct C stub marked direct.");
92   qpoints->pSet8Static = art_quick_set8_static;
93   static_assert(!IsDirectEntrypoint(kQuickSet8Static), "Non-direct C stub marked direct.");
94   qpoints->pSet16Instance = art_quick_set16_instance;
95   static_assert(!IsDirectEntrypoint(kQuickSet16Instance), "Non-direct C stub marked direct.");
96   qpoints->pSet16Static = art_quick_set16_static;
97   static_assert(!IsDirectEntrypoint(kQuickSet16Static), "Non-direct C stub marked direct.");
98   qpoints->pSet32Instance = art_quick_set32_instance;
99   static_assert(!IsDirectEntrypoint(kQuickSet32Instance), "Non-direct C stub marked direct.");
100   qpoints->pSet32Static = art_quick_set32_static;
101   static_assert(!IsDirectEntrypoint(kQuickSet32Static), "Non-direct C stub marked direct.");
102   qpoints->pSet64Instance = art_quick_set64_instance;
103   static_assert(!IsDirectEntrypoint(kQuickSet64Instance), "Non-direct C stub marked direct.");
104   qpoints->pSet64Static = art_quick_set64_static;
105   static_assert(!IsDirectEntrypoint(kQuickSet64Static), "Non-direct C stub marked direct.");
106   qpoints->pSetObjInstance = art_quick_set_obj_instance;
107   static_assert(!IsDirectEntrypoint(kQuickSetObjInstance), "Non-direct C stub marked direct.");
108   qpoints->pSetObjStatic = art_quick_set_obj_static;
109   static_assert(!IsDirectEntrypoint(kQuickSetObjStatic), "Non-direct C stub marked direct.");
110   qpoints->pGetBooleanInstance = art_quick_get_boolean_instance;
111   static_assert(!IsDirectEntrypoint(kQuickGetBooleanInstance), "Non-direct C stub marked direct.");
112   qpoints->pGetByteInstance = art_quick_get_byte_instance;
113   static_assert(!IsDirectEntrypoint(kQuickGetByteInstance), "Non-direct C stub marked direct.");
114   qpoints->pGetCharInstance = art_quick_get_char_instance;
115   static_assert(!IsDirectEntrypoint(kQuickGetCharInstance), "Non-direct C stub marked direct.");
116   qpoints->pGetShortInstance = art_quick_get_short_instance;
117   static_assert(!IsDirectEntrypoint(kQuickGetShortInstance), "Non-direct C stub marked direct.");
118   qpoints->pGet32Instance = art_quick_get32_instance;
119   static_assert(!IsDirectEntrypoint(kQuickGet32Instance), "Non-direct C stub marked direct.");
120   qpoints->pGet64Instance = art_quick_get64_instance;
121   static_assert(!IsDirectEntrypoint(kQuickGet64Instance), "Non-direct C stub marked direct.");
122   qpoints->pGetObjInstance = art_quick_get_obj_instance;
123   static_assert(!IsDirectEntrypoint(kQuickGetObjInstance), "Non-direct C stub marked direct.");
124   qpoints->pGetBooleanStatic = art_quick_get_boolean_static;
125   static_assert(!IsDirectEntrypoint(kQuickGetBooleanStatic), "Non-direct C stub marked direct.");
126   qpoints->pGetByteStatic = art_quick_get_byte_static;
127   static_assert(!IsDirectEntrypoint(kQuickGetByteStatic), "Non-direct C stub marked direct.");
128   qpoints->pGetCharStatic = art_quick_get_char_static;
129   static_assert(!IsDirectEntrypoint(kQuickGetCharStatic), "Non-direct C stub marked direct.");
130   qpoints->pGetShortStatic = art_quick_get_short_static;
131   static_assert(!IsDirectEntrypoint(kQuickGetShortStatic), "Non-direct C stub marked direct.");
132   qpoints->pGet32Static = art_quick_get32_static;
133   static_assert(!IsDirectEntrypoint(kQuickGet32Static), "Non-direct C stub marked direct.");
134   qpoints->pGet64Static = art_quick_get64_static;
135   static_assert(!IsDirectEntrypoint(kQuickGet64Static), "Non-direct C stub marked direct.");
136   qpoints->pGetObjStatic = art_quick_get_obj_static;
137   static_assert(!IsDirectEntrypoint(kQuickGetObjStatic), "Non-direct C stub marked direct.");
138 
139   // Array
140   qpoints->pAputObjectWithNullAndBoundCheck = art_quick_aput_obj_with_null_and_bound_check;
141   static_assert(!IsDirectEntrypoint(kQuickAputObjectWithNullAndBoundCheck),
142                 "Non-direct C stub marked direct.");
143   qpoints->pAputObjectWithBoundCheck = art_quick_aput_obj_with_bound_check;
144   static_assert(!IsDirectEntrypoint(kQuickAputObjectWithBoundCheck),
145                 "Non-direct C stub marked direct.");
146   qpoints->pAputObject = art_quick_aput_obj;
147   static_assert(!IsDirectEntrypoint(kQuickAputObject), "Non-direct C stub marked direct.");
148   qpoints->pHandleFillArrayData = art_quick_handle_fill_data;
149   static_assert(!IsDirectEntrypoint(kQuickHandleFillArrayData), "Non-direct C stub marked direct.");
150 
151   // JNI
152   qpoints->pJniMethodStart = JniMethodStart;
153   static_assert(!IsDirectEntrypoint(kQuickJniMethodStart), "Non-direct C stub marked direct.");
154   qpoints->pJniMethodStartSynchronized = JniMethodStartSynchronized;
155   static_assert(!IsDirectEntrypoint(kQuickJniMethodStartSynchronized),
156                 "Non-direct C stub marked direct.");
157   qpoints->pJniMethodEnd = JniMethodEnd;
158   static_assert(!IsDirectEntrypoint(kQuickJniMethodEnd), "Non-direct C stub marked direct.");
159   qpoints->pJniMethodEndSynchronized = JniMethodEndSynchronized;
160   static_assert(!IsDirectEntrypoint(kQuickJniMethodEndSynchronized),
161                 "Non-direct C stub marked direct.");
162   qpoints->pJniMethodEndWithReference = JniMethodEndWithReference;
163   static_assert(!IsDirectEntrypoint(kQuickJniMethodEndWithReference),
164                 "Non-direct C stub marked direct.");
165   qpoints->pJniMethodEndWithReferenceSynchronized = JniMethodEndWithReferenceSynchronized;
166   static_assert(!IsDirectEntrypoint(kQuickJniMethodEndWithReferenceSynchronized),
167                 "Non-direct C stub marked direct.");
168   qpoints->pQuickGenericJniTrampoline = art_quick_generic_jni_trampoline;
169   static_assert(!IsDirectEntrypoint(kQuickQuickGenericJniTrampoline),
170                 "Non-direct C stub marked direct.");
171 
172   // Locks
173   if (UNLIKELY(VLOG_IS_ON(systrace_lock_logging))) {
174     qpoints->pLockObject = art_quick_lock_object_no_inline;
175     qpoints->pUnlockObject = art_quick_unlock_object_no_inline;
176   } else {
177     qpoints->pLockObject = art_quick_lock_object;
178     qpoints->pUnlockObject = art_quick_unlock_object;
179   }
180   static_assert(!IsDirectEntrypoint(kQuickLockObject), "Non-direct C stub marked direct.");
181   static_assert(!IsDirectEntrypoint(kQuickUnlockObject), "Non-direct C stub marked direct.");
182 
183   // Math
184   qpoints->pCmpgDouble = CmpgDouble;
185   static_assert(IsDirectEntrypoint(kQuickCmpgDouble), "Direct C stub not marked direct.");
186   qpoints->pCmpgFloat = CmpgFloat;
187   static_assert(IsDirectEntrypoint(kQuickCmpgFloat), "Direct C stub not marked direct.");
188   qpoints->pCmplDouble = CmplDouble;
189   static_assert(IsDirectEntrypoint(kQuickCmplDouble), "Direct C stub not marked direct.");
190   qpoints->pCmplFloat = CmplFloat;
191   static_assert(IsDirectEntrypoint(kQuickCmplFloat), "Direct C stub not marked direct.");
192   qpoints->pFmod = fmod;
193   static_assert(IsDirectEntrypoint(kQuickFmod), "Direct C stub not marked direct.");
194   qpoints->pL2d = art_l2d;
195   static_assert(IsDirectEntrypoint(kQuickL2d), "Direct C stub not marked direct.");
196   qpoints->pFmodf = fmodf;
197   static_assert(IsDirectEntrypoint(kQuickFmodf), "Direct C stub not marked direct.");
198   qpoints->pL2f = art_l2f;
199   static_assert(IsDirectEntrypoint(kQuickL2f), "Direct C stub not marked direct.");
200   qpoints->pD2iz = art_d2i;
201   static_assert(IsDirectEntrypoint(kQuickD2iz), "Direct C stub not marked direct.");
202   qpoints->pF2iz = art_f2i;
203   static_assert(IsDirectEntrypoint(kQuickF2iz), "Direct C stub not marked direct.");
204   qpoints->pIdivmod = nullptr;
205   qpoints->pD2l = art_d2l;
206   static_assert(IsDirectEntrypoint(kQuickD2l), "Direct C stub not marked direct.");
207   qpoints->pF2l = art_f2l;
208   static_assert(IsDirectEntrypoint(kQuickF2l), "Direct C stub not marked direct.");
209   qpoints->pLdiv = artLdiv;
210   static_assert(IsDirectEntrypoint(kQuickLdiv), "Direct C stub not marked direct.");
211   qpoints->pLmod = artLmod;
212   static_assert(IsDirectEntrypoint(kQuickLmod), "Direct C stub not marked direct.");
213   qpoints->pLmul = artLmul;
214   static_assert(IsDirectEntrypoint(kQuickLmul), "Direct C stub not marked direct.");
215   qpoints->pShlLong = art_quick_shl_long;
216   static_assert(!IsDirectEntrypoint(kQuickShlLong), "Non-direct C stub marked direct.");
217   qpoints->pShrLong = art_quick_shr_long;
218   static_assert(!IsDirectEntrypoint(kQuickShrLong), "Non-direct C stub marked direct.");
219   qpoints->pUshrLong = art_quick_ushr_long;
220   static_assert(!IsDirectEntrypoint(kQuickUshrLong), "Non-direct C stub marked direct.");
221 
222   // Intrinsics
223   qpoints->pIndexOf = art_quick_indexof;
224   static_assert(!IsDirectEntrypoint(kQuickIndexOf), "Non-direct C stub marked direct.");
225   qpoints->pStringCompareTo = art_quick_string_compareto;
226   static_assert(!IsDirectEntrypoint(kQuickStringCompareTo), "Non-direct C stub marked direct.");
227   qpoints->pMemcpy = memcpy;
228 
229   // Invocation
230   qpoints->pQuickImtConflictTrampoline = art_quick_imt_conflict_trampoline;
231   qpoints->pQuickResolutionTrampoline = art_quick_resolution_trampoline;
232   qpoints->pQuickToInterpreterBridge = art_quick_to_interpreter_bridge;
233   qpoints->pInvokeDirectTrampolineWithAccessCheck =
234       art_quick_invoke_direct_trampoline_with_access_check;
235   static_assert(!IsDirectEntrypoint(kQuickInvokeDirectTrampolineWithAccessCheck),
236                 "Non-direct C stub marked direct.");
237   qpoints->pInvokeInterfaceTrampolineWithAccessCheck =
238       art_quick_invoke_interface_trampoline_with_access_check;
239   static_assert(!IsDirectEntrypoint(kQuickInvokeInterfaceTrampolineWithAccessCheck),
240                 "Non-direct C stub marked direct.");
241   qpoints->pInvokeStaticTrampolineWithAccessCheck =
242       art_quick_invoke_static_trampoline_with_access_check;
243   static_assert(!IsDirectEntrypoint(kQuickInvokeStaticTrampolineWithAccessCheck),
244                 "Non-direct C stub marked direct.");
245   qpoints->pInvokeSuperTrampolineWithAccessCheck =
246       art_quick_invoke_super_trampoline_with_access_check;
247   static_assert(!IsDirectEntrypoint(kQuickInvokeSuperTrampolineWithAccessCheck),
248                 "Non-direct C stub marked direct.");
249   qpoints->pInvokeVirtualTrampolineWithAccessCheck =
250       art_quick_invoke_virtual_trampoline_with_access_check;
251   static_assert(!IsDirectEntrypoint(kQuickInvokeVirtualTrampolineWithAccessCheck),
252                 "Non-direct C stub marked direct.");
253 
254   // Thread
255   qpoints->pTestSuspend = art_quick_test_suspend;
256   static_assert(!IsDirectEntrypoint(kQuickTestSuspend), "Non-direct C stub marked direct.");
257 
258   // Throws
259   qpoints->pDeliverException = art_quick_deliver_exception;
260   static_assert(!IsDirectEntrypoint(kQuickDeliverException), "Non-direct C stub marked direct.");
261   qpoints->pThrowArrayBounds = art_quick_throw_array_bounds;
262   static_assert(!IsDirectEntrypoint(kQuickThrowArrayBounds), "Non-direct C stub marked direct.");
263   qpoints->pThrowDivZero = art_quick_throw_div_zero;
264   static_assert(!IsDirectEntrypoint(kQuickThrowDivZero), "Non-direct C stub marked direct.");
265   qpoints->pThrowNoSuchMethod = art_quick_throw_no_such_method;
266   static_assert(!IsDirectEntrypoint(kQuickThrowNoSuchMethod), "Non-direct C stub marked direct.");
267   qpoints->pThrowNullPointer = art_quick_throw_null_pointer_exception;
268   static_assert(!IsDirectEntrypoint(kQuickThrowNullPointer), "Non-direct C stub marked direct.");
269   qpoints->pThrowStackOverflow = art_quick_throw_stack_overflow;
270   static_assert(!IsDirectEntrypoint(kQuickThrowStackOverflow), "Non-direct C stub marked direct.");
271 
272   // Deoptimization from compiled code.
273   qpoints->pDeoptimize = art_quick_deoptimize_from_compiled_code;
274   static_assert(!IsDirectEntrypoint(kQuickDeoptimize), "Non-direct C stub marked direct.");
275 
276   // Atomic 64-bit load/store
277   qpoints->pA64Load = QuasiAtomic::Read64;
278   static_assert(IsDirectEntrypoint(kQuickA64Load), "Non-direct C stub marked direct.");
279   qpoints->pA64Store = QuasiAtomic::Write64;
280   static_assert(IsDirectEntrypoint(kQuickA64Store), "Non-direct C stub marked direct.");
281 
282   // Read barrier.
283   qpoints->pReadBarrierJni = ReadBarrierJni;
284   static_assert(!IsDirectEntrypoint(kQuickReadBarrierJni), "Non-direct C stub marked direct.");
285   qpoints->pReadBarrierMark = artReadBarrierMark;
286   static_assert(IsDirectEntrypoint(kQuickReadBarrierMark), "Direct C stub not marked direct.");
287   qpoints->pReadBarrierSlow = artReadBarrierSlow;
288   static_assert(IsDirectEntrypoint(kQuickReadBarrierSlow), "Direct C stub not marked direct.");
289   qpoints->pReadBarrierForRootSlow = artReadBarrierForRootSlow;
290   static_assert(IsDirectEntrypoint(kQuickReadBarrierForRootSlow),
291                 "Direct C stub not marked direct.");
292 };
293 
294 }  // namespace art
295