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 "entrypoints/interpreter/interpreter_entrypoints.h"
18 #include "entrypoints/jni/jni_entrypoints.h"
19 #include "entrypoints/portable/portable_entrypoints.h"
20 #include "entrypoints/quick/quick_alloc_entrypoints.h"
21 #include "entrypoints/quick/quick_entrypoints.h"
22 #include "entrypoints/entrypoint_utils.h"
23 #include "entrypoints/math_entrypoints.h"
24 #include "atomic.h"
25 
26 namespace art {
27 
28 // Interpreter entrypoints.
29 extern "C" void artInterpreterToInterpreterBridge(Thread* self, MethodHelper& mh,
30                                                  const DexFile::CodeItem* code_item,
31                                                  ShadowFrame* shadow_frame, JValue* result);
32 extern "C" void artInterpreterToCompiledCodeBridge(Thread* self, MethodHelper& mh,
33                                            const DexFile::CodeItem* code_item,
34                                            ShadowFrame* shadow_frame, JValue* result);
35 
36 // Portable entrypoints.
37 extern "C" void art_portable_resolution_trampoline(mirror::ArtMethod*);
38 extern "C" void art_portable_to_interpreter_bridge(mirror::ArtMethod*);
39 
40 // Cast entrypoints.
41 extern "C" uint32_t artIsAssignableFromCode(const mirror::Class* klass,
42                                             const mirror::Class* ref_class);
43 extern "C" void art_quick_check_cast(void*, void*);
44 
45 // DexCache entrypoints.
46 extern "C" void* art_quick_initialize_static_storage(uint32_t, void*);
47 extern "C" void* art_quick_initialize_type(uint32_t, void*);
48 extern "C" void* art_quick_initialize_type_and_verify_access(uint32_t, void*);
49 extern "C" void* art_quick_resolve_string(void*, uint32_t);
50 
51 // Field entrypoints.
52 extern "C" int art_quick_set32_instance(uint32_t, void*, int32_t);
53 extern "C" int art_quick_set32_static(uint32_t, int32_t);
54 extern "C" int art_quick_set64_instance(uint32_t, void*, int64_t);
55 extern "C" int art_quick_set64_static(uint32_t, int64_t);
56 extern "C" int art_quick_set_obj_instance(uint32_t, void*, void*);
57 extern "C" int art_quick_set_obj_static(uint32_t, void*);
58 extern "C" int32_t art_quick_get32_instance(uint32_t, void*);
59 extern "C" int32_t art_quick_get32_static(uint32_t);
60 extern "C" int64_t art_quick_get64_instance(uint32_t, void*);
61 extern "C" int64_t art_quick_get64_static(uint32_t);
62 extern "C" void* art_quick_get_obj_instance(uint32_t, void*);
63 extern "C" void* art_quick_get_obj_static(uint32_t);
64 
65 // Array entrypoints.
66 extern "C" void art_quick_aput_obj_with_null_and_bound_check(void*, uint32_t, void*);
67 extern "C" void art_quick_aput_obj_with_bound_check(void*, uint32_t, void*);
68 extern "C" void art_quick_aput_obj(void*, uint32_t, void*);
69 extern "C" void art_quick_handle_fill_data(void*, void*);
70 
71 // Lock entrypoints.
72 extern "C" void art_quick_lock_object(void*);
73 extern "C" void art_quick_unlock_object(void*);
74 
75 // Math entrypoints.
76 extern int32_t CmpgDouble(double a, double b);
77 extern int32_t CmplDouble(double a, double b);
78 extern int32_t CmpgFloat(float a, float b);
79 extern int32_t CmplFloat(float a, float b);
80 extern "C" int64_t artLmul(int64_t a, int64_t b);
81 extern "C" int64_t artLdiv(int64_t a, int64_t b);
82 extern "C" int64_t artLmod(int64_t a, int64_t b);
83 
84 // Math conversions.
85 extern "C" int32_t __fixsfsi(float op1);      // FLOAT_TO_INT
86 extern "C" int32_t __fixdfsi(double op1);     // DOUBLE_TO_INT
87 extern "C" float __floatdisf(int64_t op1);    // LONG_TO_FLOAT
88 extern "C" double __floatdidf(int64_t op1);   // LONG_TO_DOUBLE
89 extern "C" int64_t __fixsfdi(float op1);      // FLOAT_TO_LONG
90 extern "C" int64_t __fixdfdi(double op1);     // DOUBLE_TO_LONG
91 
92 // Single-precision FP arithmetics.
93 extern "C" float fmodf(float a, float b);      // REM_FLOAT[_2ADDR]
94 
95 // Double-precision FP arithmetics.
96 extern "C" double fmod(double a, double b);     // REM_DOUBLE[_2ADDR]
97 
98 // Long long arithmetics - REM_LONG[_2ADDR] and DIV_LONG[_2ADDR]
99 extern "C" int64_t __divdi3(int64_t, int64_t);
100 extern "C" int64_t __moddi3(int64_t, int64_t);
101 extern "C" uint64_t art_quick_shl_long(uint64_t, uint32_t);
102 extern "C" uint64_t art_quick_shr_long(uint64_t, uint32_t);
103 extern "C" uint64_t art_quick_ushr_long(uint64_t, uint32_t);
104 
105 // Intrinsic entrypoints.
106 extern "C" int32_t art_quick_indexof(void*, uint32_t, uint32_t, uint32_t);
107 extern "C" int32_t art_quick_string_compareto(void*, void*);
108 
109 // Invoke entrypoints.
110 extern "C" void art_quick_imt_conflict_trampoline(mirror::ArtMethod*);
111 extern "C" void art_quick_resolution_trampoline(mirror::ArtMethod*);
112 extern "C" void art_quick_to_interpreter_bridge(mirror::ArtMethod*);
113 extern "C" void art_quick_invoke_direct_trampoline_with_access_check(uint32_t, void*);
114 extern "C" void art_quick_invoke_interface_trampoline_with_access_check(uint32_t, void*);
115 extern "C" void art_quick_invoke_static_trampoline_with_access_check(uint32_t, void*);
116 extern "C" void art_quick_invoke_super_trampoline_with_access_check(uint32_t, void*);
117 extern "C" void art_quick_invoke_virtual_trampoline_with_access_check(uint32_t, void*);
118 
119 // Thread entrypoints.
120 extern "C" void art_quick_test_suspend();
121 
122 // Throw entrypoints.
123 extern "C" void art_quick_deliver_exception(void*);
124 extern "C" void art_quick_throw_array_bounds(int32_t index, int32_t limit);
125 extern "C" void art_quick_throw_div_zero();
126 extern "C" void art_quick_throw_no_such_method(int32_t method_idx);
127 extern "C" void art_quick_throw_null_pointer_exception();
128 extern "C" void art_quick_throw_stack_overflow(void*);
129 
130 // Generic JNI downcall
131 extern "C" void art_quick_generic_jni_trampoline(mirror::ArtMethod*);
132 
133 extern void ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints);
134 
InitEntryPoints(InterpreterEntryPoints * ipoints,JniEntryPoints * jpoints,PortableEntryPoints * ppoints,QuickEntryPoints * qpoints)135 void InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints,
136                      PortableEntryPoints* ppoints, QuickEntryPoints* qpoints) {
137   // Interpreter
138   ipoints->pInterpreterToInterpreterBridge = artInterpreterToInterpreterBridge;
139   ipoints->pInterpreterToCompiledCodeBridge = artInterpreterToCompiledCodeBridge;
140 
141   // JNI
142   jpoints->pDlsymLookup = art_jni_dlsym_lookup_stub;
143 
144   // Portable
145   ppoints->pPortableResolutionTrampoline = art_portable_resolution_trampoline;
146   ppoints->pPortableToInterpreterBridge = art_portable_to_interpreter_bridge;
147 
148   // Alloc
149   ResetQuickAllocEntryPoints(qpoints);
150 
151   // Cast
152   qpoints->pInstanceofNonTrivial = artIsAssignableFromCode;
153   qpoints->pCheckCast = art_quick_check_cast;
154 
155   // DexCache
156   qpoints->pInitializeStaticStorage = art_quick_initialize_static_storage;
157   qpoints->pInitializeTypeAndVerifyAccess = art_quick_initialize_type_and_verify_access;
158   qpoints->pInitializeType = art_quick_initialize_type;
159   qpoints->pResolveString = art_quick_resolve_string;
160 
161   // Field
162   qpoints->pSet32Instance = art_quick_set32_instance;
163   qpoints->pSet32Static = art_quick_set32_static;
164   qpoints->pSet64Instance = art_quick_set64_instance;
165   qpoints->pSet64Static = art_quick_set64_static;
166   qpoints->pSetObjInstance = art_quick_set_obj_instance;
167   qpoints->pSetObjStatic = art_quick_set_obj_static;
168   qpoints->pGet32Instance = art_quick_get32_instance;
169   qpoints->pGet64Instance = art_quick_get64_instance;
170   qpoints->pGetObjInstance = art_quick_get_obj_instance;
171   qpoints->pGet32Static = art_quick_get32_static;
172   qpoints->pGet64Static = art_quick_get64_static;
173   qpoints->pGetObjStatic = art_quick_get_obj_static;
174 
175   // Array
176   qpoints->pAputObjectWithNullAndBoundCheck = art_quick_aput_obj_with_null_and_bound_check;
177   qpoints->pAputObjectWithBoundCheck = art_quick_aput_obj_with_bound_check;
178   qpoints->pAputObject = art_quick_aput_obj;
179   qpoints->pHandleFillArrayData = art_quick_handle_fill_data;
180 
181   // JNI
182   qpoints->pJniMethodStart = JniMethodStart;
183   qpoints->pJniMethodStartSynchronized = JniMethodStartSynchronized;
184   qpoints->pJniMethodEnd = JniMethodEnd;
185   qpoints->pJniMethodEndSynchronized = JniMethodEndSynchronized;
186   qpoints->pJniMethodEndWithReference = JniMethodEndWithReference;
187   qpoints->pJniMethodEndWithReferenceSynchronized = JniMethodEndWithReferenceSynchronized;
188   qpoints->pQuickGenericJniTrampoline = art_quick_generic_jni_trampoline;
189 
190   // Locks
191   qpoints->pLockObject = art_quick_lock_object;
192   qpoints->pUnlockObject = art_quick_unlock_object;
193 
194   // Math
195   qpoints->pCmpgDouble = CmpgDouble;
196   qpoints->pCmpgFloat = CmpgFloat;
197   qpoints->pCmplDouble = CmplDouble;
198   qpoints->pCmplFloat = CmplFloat;
199   qpoints->pFmod = fmod;
200   qpoints->pL2d = art_l2d;
201   qpoints->pFmodf = fmodf;
202   qpoints->pL2f = art_l2f;
203   qpoints->pD2iz = art_d2i;
204   qpoints->pF2iz = art_f2i;
205   qpoints->pIdivmod = NULL;
206   qpoints->pD2l = art_d2l;
207   qpoints->pF2l = art_f2l;
208   qpoints->pLdiv = artLdiv;
209   qpoints->pLmod = artLmod;
210   qpoints->pLmul = artLmul;
211   qpoints->pShlLong = art_quick_shl_long;
212   qpoints->pShrLong = art_quick_shr_long;
213   qpoints->pUshrLong = art_quick_ushr_long;
214 
215   // Intrinsics
216   qpoints->pIndexOf = art_quick_indexof;
217   qpoints->pStringCompareTo = art_quick_string_compareto;
218   qpoints->pMemcpy = memcpy;
219 
220   // Invocation
221   qpoints->pQuickImtConflictTrampoline = art_quick_imt_conflict_trampoline;
222   qpoints->pQuickResolutionTrampoline = art_quick_resolution_trampoline;
223   qpoints->pQuickToInterpreterBridge = art_quick_to_interpreter_bridge;
224   qpoints->pInvokeDirectTrampolineWithAccessCheck = art_quick_invoke_direct_trampoline_with_access_check;
225   qpoints->pInvokeInterfaceTrampolineWithAccessCheck = art_quick_invoke_interface_trampoline_with_access_check;
226   qpoints->pInvokeStaticTrampolineWithAccessCheck = art_quick_invoke_static_trampoline_with_access_check;
227   qpoints->pInvokeSuperTrampolineWithAccessCheck = art_quick_invoke_super_trampoline_with_access_check;
228   qpoints->pInvokeVirtualTrampolineWithAccessCheck = art_quick_invoke_virtual_trampoline_with_access_check;
229 
230   // Thread
231   qpoints->pTestSuspend = art_quick_test_suspend;
232 
233   // Throws
234   qpoints->pDeliverException = art_quick_deliver_exception;
235   qpoints->pThrowArrayBounds = art_quick_throw_array_bounds;
236   qpoints->pThrowDivZero = art_quick_throw_div_zero;
237   qpoints->pThrowNoSuchMethod = art_quick_throw_no_such_method;
238   qpoints->pThrowNullPointer = art_quick_throw_null_pointer_exception;
239   qpoints->pThrowStackOverflow = art_quick_throw_stack_overflow;
240 
241   // Atomic 64-bit load/store
242   qpoints->pA64Load = QuasiAtomic::Read64;
243   qpoints->pA64Store = QuasiAtomic::Write64;
244 };
245 
246 }  // namespace art
247