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 
25 namespace art {
26 
27 // Interpreter entrypoints.
28 extern "C" void artInterpreterToInterpreterBridge(Thread* self, MethodHelper& mh,
29                                                   const DexFile::CodeItem* code_item,
30                                                   ShadowFrame* shadow_frame, JValue* result);
31 extern "C" void artInterpreterToCompiledCodeBridge(Thread* self, MethodHelper& mh,
32                                                    const DexFile::CodeItem* code_item,
33                                                    ShadowFrame* shadow_frame, JValue* result);
34 
35 // Portable entrypoints.
36 extern "C" void art_portable_resolution_trampoline(mirror::ArtMethod*);
37 extern "C" void art_portable_to_interpreter_bridge(mirror::ArtMethod*);
38 
39 // Cast entrypoints.
40 extern "C" uint32_t artIsAssignableFromCode(const mirror::Class* klass,
41                                             const mirror::Class* ref_class);
42 extern "C" void art_quick_check_cast(void*, void*);
43 
44 // DexCache entrypoints.
45 extern "C" void* art_quick_initialize_static_storage(uint32_t, void*);
46 extern "C" void* art_quick_initialize_type(uint32_t, void*);
47 extern "C" void* art_quick_initialize_type_and_verify_access(uint32_t, void*);
48 extern "C" void* art_quick_resolve_string(void*, uint32_t);
49 
50 // Field entrypoints.
51 extern "C" int art_quick_set32_instance(uint32_t, void*, int32_t);
52 extern "C" int art_quick_set32_static(uint32_t, int32_t);
53 extern "C" int art_quick_set64_instance(uint32_t, void*, int64_t);
54 extern "C" int art_quick_set64_static(uint32_t, int64_t);
55 extern "C" int art_quick_set_obj_instance(uint32_t, void*, void*);
56 extern "C" int art_quick_set_obj_static(uint32_t, void*);
57 extern "C" int32_t art_quick_get32_instance(uint32_t, void*);
58 extern "C" int32_t art_quick_get32_static(uint32_t);
59 extern "C" int64_t art_quick_get64_instance(uint32_t, void*);
60 extern "C" int64_t art_quick_get64_static(uint32_t);
61 extern "C" void* art_quick_get_obj_instance(uint32_t, void*);
62 extern "C" void* art_quick_get_obj_static(uint32_t);
63 
64 // Array entrypoints.
65 extern "C" void art_quick_aput_obj_with_null_and_bound_check(void*, uint32_t, void*);
66 extern "C" void art_quick_aput_obj_with_bound_check(void*, uint32_t, void*);
67 extern "C" void art_quick_aput_obj(void*, uint32_t, void*);
68 extern "C" void art_quick_handle_fill_data(void*, void*);
69 
70 // Lock entrypoints.
71 extern "C" void art_quick_lock_object(void*);
72 extern "C" void art_quick_unlock_object(void*);
73 
74 // Math entrypoints.
75 extern int32_t CmpgDouble(double a, double b);
76 extern int32_t CmplDouble(double a, double b);
77 extern int32_t CmpgFloat(float a, float b);
78 extern int32_t CmplFloat(float a, float b);
79 
80 // Math conversions.
81 extern "C" int32_t __aeabi_f2iz(float op1);        // FLOAT_TO_INT
82 extern "C" int32_t __aeabi_d2iz(double op1);       // DOUBLE_TO_INT
83 extern "C" float __aeabi_l2f(int64_t op1);         // LONG_TO_FLOAT
84 extern "C" double __aeabi_l2d(int64_t op1);        // LONG_TO_DOUBLE
85 
86 // Single-precision FP arithmetics.
87 extern "C" float fmodf(float a, float b);          // REM_FLOAT[_2ADDR]
88 
89 // Double-precision FP arithmetics.
90 extern "C" double fmod(double a, double b);         // REM_DOUBLE[_2ADDR]
91 
92 // Integer arithmetics.
93 extern "C" int __aeabi_idivmod(int32_t, int32_t);  // [DIV|REM]_INT[_2ADDR|_LIT8|_LIT16]
94 
95 // Long long arithmetics - REM_LONG[_2ADDR] and DIV_LONG[_2ADDR]
96 extern "C" int64_t __aeabi_ldivmod(int64_t, int64_t);
97 extern "C" int64_t art_quick_mul_long(int64_t, int64_t);
98 extern "C" uint64_t art_quick_shl_long(uint64_t, uint32_t);
99 extern "C" uint64_t art_quick_shr_long(uint64_t, uint32_t);
100 extern "C" uint64_t art_quick_ushr_long(uint64_t, uint32_t);
101 
102 // Intrinsic entrypoints.
103 extern "C" int32_t art_quick_indexof(void*, uint32_t, uint32_t, uint32_t);
104 extern "C" int32_t art_quick_string_compareto(void*, void*);
105 
106 // Invoke entrypoints.
107 extern "C" void art_quick_imt_conflict_trampoline(mirror::ArtMethod*);
108 extern "C" void art_quick_resolution_trampoline(mirror::ArtMethod*);
109 extern "C" void art_quick_to_interpreter_bridge(mirror::ArtMethod*);
110 extern "C" void art_quick_invoke_direct_trampoline_with_access_check(uint32_t, void*);
111 extern "C" void art_quick_invoke_interface_trampoline_with_access_check(uint32_t, void*);
112 extern "C" void art_quick_invoke_static_trampoline_with_access_check(uint32_t, void*);
113 extern "C" void art_quick_invoke_super_trampoline_with_access_check(uint32_t, void*);
114 extern "C" void art_quick_invoke_virtual_trampoline_with_access_check(uint32_t, void*);
115 
116 // Thread entrypoints.
117 extern "C" void art_quick_test_suspend();
118 
119 // Throw entrypoints.
120 extern "C" void art_quick_deliver_exception(void*);
121 extern "C" void art_quick_throw_array_bounds(int32_t index, int32_t limit);
122 extern "C" void art_quick_throw_div_zero();
123 extern "C" void art_quick_throw_no_such_method(int32_t method_idx);
124 extern "C" void art_quick_throw_null_pointer_exception();
125 extern "C" void art_quick_throw_stack_overflow(void*);
126 
127 // Generic JNI downcall
128 extern "C" void art_quick_generic_jni_trampoline(mirror::ArtMethod*);
129 
InitEntryPoints(InterpreterEntryPoints * ipoints,JniEntryPoints * jpoints,PortableEntryPoints * ppoints,QuickEntryPoints * qpoints)130 void InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints,
131                      PortableEntryPoints* ppoints, QuickEntryPoints* qpoints) {
132   // Interpreter
133   ipoints->pInterpreterToInterpreterBridge = artInterpreterToInterpreterBridge;
134   ipoints->pInterpreterToCompiledCodeBridge = artInterpreterToCompiledCodeBridge;
135 
136   // JNI
137   jpoints->pDlsymLookup = art_jni_dlsym_lookup_stub;
138 
139   // Portable
140   ppoints->pPortableResolutionTrampoline = art_portable_resolution_trampoline;
141   ppoints->pPortableToInterpreterBridge = art_portable_to_interpreter_bridge;
142 
143   // Alloc
144   ResetQuickAllocEntryPoints(qpoints);
145 
146   // Cast
147   qpoints->pInstanceofNonTrivial = artIsAssignableFromCode;
148   qpoints->pCheckCast = art_quick_check_cast;
149 
150   // DexCache
151   qpoints->pInitializeStaticStorage = art_quick_initialize_static_storage;
152   qpoints->pInitializeTypeAndVerifyAccess = art_quick_initialize_type_and_verify_access;
153   qpoints->pInitializeType = art_quick_initialize_type;
154   qpoints->pResolveString = art_quick_resolve_string;
155 
156   // Field
157   qpoints->pSet32Instance = art_quick_set32_instance;
158   qpoints->pSet32Static = art_quick_set32_static;
159   qpoints->pSet64Instance = art_quick_set64_instance;
160   qpoints->pSet64Static = art_quick_set64_static;
161   qpoints->pSetObjInstance = art_quick_set_obj_instance;
162   qpoints->pSetObjStatic = art_quick_set_obj_static;
163   qpoints->pGet32Instance = art_quick_get32_instance;
164   qpoints->pGet64Instance = art_quick_get64_instance;
165   qpoints->pGetObjInstance = art_quick_get_obj_instance;
166   qpoints->pGet32Static = art_quick_get32_static;
167   qpoints->pGet64Static = art_quick_get64_static;
168   qpoints->pGetObjStatic = art_quick_get_obj_static;
169 
170   // Array
171   qpoints->pAputObjectWithNullAndBoundCheck = art_quick_aput_obj_with_null_and_bound_check;
172   qpoints->pAputObjectWithBoundCheck = art_quick_aput_obj_with_bound_check;
173   qpoints->pAputObject = art_quick_aput_obj;
174   qpoints->pHandleFillArrayData = art_quick_handle_fill_data;
175 
176   // JNI
177   qpoints->pJniMethodStart = JniMethodStart;
178   qpoints->pJniMethodStartSynchronized = JniMethodStartSynchronized;
179   qpoints->pJniMethodEnd = JniMethodEnd;
180   qpoints->pJniMethodEndSynchronized = JniMethodEndSynchronized;
181   qpoints->pJniMethodEndWithReference = JniMethodEndWithReference;
182   qpoints->pJniMethodEndWithReferenceSynchronized = JniMethodEndWithReferenceSynchronized;
183   qpoints->pQuickGenericJniTrampoline = art_quick_generic_jni_trampoline;
184 
185   // Locks
186   qpoints->pLockObject = art_quick_lock_object;
187   qpoints->pUnlockObject = art_quick_unlock_object;
188 
189   // Math
190   qpoints->pCmpgDouble = CmpgDouble;
191   qpoints->pCmpgFloat = CmpgFloat;
192   qpoints->pCmplDouble = CmplDouble;
193   qpoints->pCmplFloat = CmplFloat;
194   qpoints->pFmod = fmod;
195   qpoints->pL2d = __aeabi_l2d;
196   qpoints->pFmodf = fmodf;
197   qpoints->pL2f = __aeabi_l2f;
198   qpoints->pD2iz = __aeabi_d2iz;
199   qpoints->pF2iz = __aeabi_f2iz;
200   qpoints->pIdivmod = __aeabi_idivmod;
201   qpoints->pD2l = art_d2l;
202   qpoints->pF2l = art_f2l;
203   qpoints->pLdiv = __aeabi_ldivmod;
204   qpoints->pLmod = __aeabi_ldivmod;  // result returned in r2:r3
205   qpoints->pLmul = art_quick_mul_long;
206   qpoints->pShlLong = art_quick_shl_long;
207   qpoints->pShrLong = art_quick_shr_long;
208   qpoints->pUshrLong = art_quick_ushr_long;
209 
210   // Intrinsics
211   qpoints->pIndexOf = art_quick_indexof;
212   qpoints->pStringCompareTo = art_quick_string_compareto;
213   qpoints->pMemcpy = memcpy;
214 
215   // Invocation
216   qpoints->pQuickImtConflictTrampoline = art_quick_imt_conflict_trampoline;
217   qpoints->pQuickResolutionTrampoline = art_quick_resolution_trampoline;
218   qpoints->pQuickToInterpreterBridge = art_quick_to_interpreter_bridge;
219   qpoints->pInvokeDirectTrampolineWithAccessCheck = art_quick_invoke_direct_trampoline_with_access_check;
220   qpoints->pInvokeInterfaceTrampolineWithAccessCheck = art_quick_invoke_interface_trampoline_with_access_check;
221   qpoints->pInvokeStaticTrampolineWithAccessCheck = art_quick_invoke_static_trampoline_with_access_check;
222   qpoints->pInvokeSuperTrampolineWithAccessCheck = art_quick_invoke_super_trampoline_with_access_check;
223   qpoints->pInvokeVirtualTrampolineWithAccessCheck = art_quick_invoke_virtual_trampoline_with_access_check;
224 
225   // Thread
226   qpoints->pTestSuspend = art_quick_test_suspend;
227 
228   // Throws
229   qpoints->pDeliverException = art_quick_deliver_exception;
230   qpoints->pThrowArrayBounds = art_quick_throw_array_bounds;
231   qpoints->pThrowDivZero = art_quick_throw_div_zero;
232   qpoints->pThrowNoSuchMethod = art_quick_throw_no_such_method;
233   qpoints->pThrowNullPointer = art_quick_throw_null_pointer_exception;
234   qpoints->pThrowStackOverflow = art_quick_throw_stack_overflow;
235 };
236 
237 }  // namespace art
238