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      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/portable/portable_entrypoints.h"
     19 #include "entrypoints/quick/quick_entrypoints.h"
     20 #include "entrypoints/entrypoint_utils.h"
     21 #include "entrypoints/math_entrypoints.h"
     22 
     23 namespace art {
     24 
     25 // Interpreter entrypoints.
     26 extern "C" void artInterpreterToInterpreterBridge(Thread* self, MethodHelper& mh,
     27                                                  const DexFile::CodeItem* code_item,
     28                                                  ShadowFrame* shadow_frame, JValue* result);
     29 extern "C" void artInterpreterToCompiledCodeBridge(Thread* self, MethodHelper& mh,
     30                                            const DexFile::CodeItem* code_item,
     31                                            ShadowFrame* shadow_frame, JValue* result);
     32 
     33 // Portable entrypoints.
     34 extern "C" void art_portable_resolution_trampoline(mirror::ArtMethod*);
     35 extern "C" void art_portable_to_interpreter_bridge(mirror::ArtMethod*);
     36 
     37 // Alloc entrypoints.
     38 extern "C" void* art_quick_alloc_array(uint32_t, void*, int32_t);
     39 extern "C" void* art_quick_alloc_array_with_access_check(uint32_t, void*, int32_t);
     40 extern "C" void* art_quick_alloc_object(uint32_t type_idx, void* method);
     41 extern "C" void* art_quick_alloc_object_with_access_check(uint32_t type_idx, void* method);
     42 extern "C" void* art_quick_check_and_alloc_array(uint32_t, void*, int32_t);
     43 extern "C" void* art_quick_check_and_alloc_array_with_access_check(uint32_t, void*, int32_t);
     44 
     45 // Cast entrypoints.
     46 extern "C" uint32_t artIsAssignableFromCode(const mirror::Class* klass,
     47                                             const mirror::Class* ref_class);
     48 extern "C" void art_quick_can_put_array_element(void*, void*);
     49 extern "C" void art_quick_check_cast(void*, void*);
     50 
     51 // DexCache entrypoints.
     52 extern "C" void* art_quick_initialize_static_storage(uint32_t, void*);
     53 extern "C" void* art_quick_initialize_type(uint32_t, void*);
     54 extern "C" void* art_quick_initialize_type_and_verify_access(uint32_t, void*);
     55 extern "C" void* art_quick_resolve_string(void*, uint32_t);
     56 
     57 // Exception entrypoints.
     58 extern "C" void* GetAndClearException(Thread*);
     59 
     60 // Field entrypoints.
     61 extern "C" int art_quick_set32_instance(uint32_t, void*, int32_t);
     62 extern "C" int art_quick_set32_static(uint32_t, int32_t);
     63 extern "C" int art_quick_set64_instance(uint32_t, void*, int64_t);
     64 extern "C" int art_quick_set64_static(uint32_t, int64_t);
     65 extern "C" int art_quick_set_obj_instance(uint32_t, void*, void*);
     66 extern "C" int art_quick_set_obj_static(uint32_t, void*);
     67 extern "C" int32_t art_quick_get32_instance(uint32_t, void*);
     68 extern "C" int32_t art_quick_get32_static(uint32_t);
     69 extern "C" int64_t art_quick_get64_instance(uint32_t, void*);
     70 extern "C" int64_t art_quick_get64_static(uint32_t);
     71 extern "C" void* art_quick_get_obj_instance(uint32_t, void*);
     72 extern "C" void* art_quick_get_obj_static(uint32_t);
     73 
     74 // FillArray entrypoint.
     75 extern "C" void art_quick_handle_fill_data(void*, void*);
     76 
     77 // Lock entrypoints.
     78 extern "C" void art_quick_lock_object(void*);
     79 extern "C" void art_quick_unlock_object(void*);
     80 
     81 // Math entrypoints.
     82 extern int32_t CmpgDouble(double a, double b);
     83 extern int32_t CmplDouble(double a, double b);
     84 extern int32_t CmpgFloat(float a, float b);
     85 extern int32_t CmplFloat(float a, float b);
     86 
     87 // Math conversions.
     88 extern "C" int32_t __aeabi_f2iz(float op1);        // FLOAT_TO_INT
     89 extern "C" int32_t __aeabi_d2iz(double op1);       // DOUBLE_TO_INT
     90 extern "C" float __aeabi_l2f(int64_t op1);         // LONG_TO_FLOAT
     91 extern "C" double __aeabi_l2d(int64_t op1);        // LONG_TO_DOUBLE
     92 
     93 // Single-precision FP arithmetics.
     94 extern "C" float fmodf(float a, float b);          // REM_FLOAT[_2ADDR]
     95 
     96 // Double-precision FP arithmetics.
     97 extern "C" double fmod(double a, double b);         // REM_DOUBLE[_2ADDR]
     98 
     99 // Integer arithmetics.
    100 extern "C" int __aeabi_idivmod(int32_t, int32_t);  // [DIV|REM]_INT[_2ADDR|_LIT8|_LIT16]
    101 
    102 // Long long arithmetics - REM_LONG[_2ADDR] and DIV_LONG[_2ADDR]
    103 extern "C" int64_t __aeabi_ldivmod(int64_t, int64_t);
    104 extern "C" int64_t art_quick_mul_long(int64_t, int64_t);
    105 extern "C" uint64_t art_quick_shl_long(uint64_t, uint32_t);
    106 extern "C" uint64_t art_quick_shr_long(uint64_t, uint32_t);
    107 extern "C" uint64_t art_quick_ushr_long(uint64_t, uint32_t);
    108 
    109 // Intrinsic entrypoints.
    110 extern "C" int32_t __memcmp16(void*, void*, int32_t);
    111 extern "C" int32_t art_quick_indexof(void*, uint32_t, uint32_t, uint32_t);
    112 extern "C" int32_t art_quick_string_compareto(void*, void*);
    113 
    114 // Invoke entrypoints.
    115 extern "C" void art_quick_resolution_trampoline(mirror::ArtMethod*);
    116 extern "C" void art_quick_to_interpreter_bridge(mirror::ArtMethod*);
    117 extern "C" void art_quick_invoke_direct_trampoline_with_access_check(uint32_t, void*);
    118 extern "C" void art_quick_invoke_interface_trampoline(uint32_t, void*);
    119 extern "C" void art_quick_invoke_interface_trampoline_with_access_check(uint32_t, void*);
    120 extern "C" void art_quick_invoke_static_trampoline_with_access_check(uint32_t, void*);
    121 extern "C" void art_quick_invoke_super_trampoline_with_access_check(uint32_t, void*);
    122 extern "C" void art_quick_invoke_virtual_trampoline_with_access_check(uint32_t, void*);
    123 
    124 // Thread entrypoints.
    125 extern void CheckSuspendFromCode(Thread* thread);
    126 extern "C" void art_quick_test_suspend();
    127 
    128 // Throw entrypoints.
    129 extern "C" void art_quick_deliver_exception(void*);
    130 extern "C" void art_quick_throw_array_bounds(int32_t index, int32_t limit);
    131 extern "C" void art_quick_throw_div_zero();
    132 extern "C" void art_quick_throw_no_such_method(int32_t method_idx);
    133 extern "C" void art_quick_throw_null_pointer_exception();
    134 extern "C" void art_quick_throw_stack_overflow(void*);
    135 
    136 void InitEntryPoints(InterpreterEntryPoints* ipoints, JniEntryPoints* jpoints,
    137                      PortableEntryPoints* ppoints, QuickEntryPoints* qpoints) {
    138   // Interpreter
    139   ipoints->pInterpreterToInterpreterBridge = artInterpreterToInterpreterBridge;
    140   ipoints->pInterpreterToCompiledCodeBridge = artInterpreterToCompiledCodeBridge;
    141 
    142   // JNI
    143   jpoints->pDlsymLookup = art_jni_dlsym_lookup_stub;
    144 
    145   // Portable
    146   ppoints->pPortableResolutionTrampoline = art_portable_resolution_trampoline;
    147   ppoints->pPortableToInterpreterBridge = art_portable_to_interpreter_bridge;
    148 
    149   // Alloc
    150   qpoints->pAllocArray = art_quick_alloc_array;
    151   qpoints->pAllocArrayWithAccessCheck = art_quick_alloc_array_with_access_check;
    152   qpoints->pAllocObject = art_quick_alloc_object;
    153   qpoints->pAllocObjectWithAccessCheck = art_quick_alloc_object_with_access_check;
    154   qpoints->pCheckAndAllocArray = art_quick_check_and_alloc_array;
    155   qpoints->pCheckAndAllocArrayWithAccessCheck = art_quick_check_and_alloc_array_with_access_check;
    156 
    157   // Cast
    158   qpoints->pInstanceofNonTrivial = artIsAssignableFromCode;
    159   qpoints->pCanPutArrayElement = art_quick_can_put_array_element;
    160   qpoints->pCheckCast = art_quick_check_cast;
    161 
    162   // DexCache
    163   qpoints->pInitializeStaticStorage = art_quick_initialize_static_storage;
    164   qpoints->pInitializeTypeAndVerifyAccess = art_quick_initialize_type_and_verify_access;
    165   qpoints->pInitializeType = art_quick_initialize_type;
    166   qpoints->pResolveString = art_quick_resolve_string;
    167 
    168   // Field
    169   qpoints->pSet32Instance = art_quick_set32_instance;
    170   qpoints->pSet32Static = art_quick_set32_static;
    171   qpoints->pSet64Instance = art_quick_set64_instance;
    172   qpoints->pSet64Static = art_quick_set64_static;
    173   qpoints->pSetObjInstance = art_quick_set_obj_instance;
    174   qpoints->pSetObjStatic = art_quick_set_obj_static;
    175   qpoints->pGet32Instance = art_quick_get32_instance;
    176   qpoints->pGet64Instance = art_quick_get64_instance;
    177   qpoints->pGetObjInstance = art_quick_get_obj_instance;
    178   qpoints->pGet32Static = art_quick_get32_static;
    179   qpoints->pGet64Static = art_quick_get64_static;
    180   qpoints->pGetObjStatic = art_quick_get_obj_static;
    181 
    182   // FillArray
    183   qpoints->pHandleFillArrayData = art_quick_handle_fill_data;
    184 
    185   // JNI
    186   qpoints->pJniMethodStart = JniMethodStart;
    187   qpoints->pJniMethodStartSynchronized = JniMethodStartSynchronized;
    188   qpoints->pJniMethodEnd = JniMethodEnd;
    189   qpoints->pJniMethodEndSynchronized = JniMethodEndSynchronized;
    190   qpoints->pJniMethodEndWithReference = JniMethodEndWithReference;
    191   qpoints->pJniMethodEndWithReferenceSynchronized = JniMethodEndWithReferenceSynchronized;
    192 
    193   // Locks
    194   qpoints->pLockObject = art_quick_lock_object;
    195   qpoints->pUnlockObject = art_quick_unlock_object;
    196 
    197   // Math
    198   qpoints->pCmpgDouble = CmpgDouble;
    199   qpoints->pCmpgFloat = CmpgFloat;
    200   qpoints->pCmplDouble = CmplDouble;
    201   qpoints->pCmplFloat = CmplFloat;
    202   qpoints->pFmod = fmod;
    203   qpoints->pSqrt = sqrt;
    204   qpoints->pL2d = __aeabi_l2d;
    205   qpoints->pFmodf = fmodf;
    206   qpoints->pL2f = __aeabi_l2f;
    207   qpoints->pD2iz = __aeabi_d2iz;
    208   qpoints->pF2iz = __aeabi_f2iz;
    209   qpoints->pIdivmod = __aeabi_idivmod;
    210   qpoints->pD2l = art_d2l;
    211   qpoints->pF2l = art_f2l;
    212   qpoints->pLdiv = __aeabi_ldivmod;
    213   qpoints->pLdivmod = __aeabi_ldivmod;  // result returned in r2:r3
    214   qpoints->pLmul = art_quick_mul_long;
    215   qpoints->pShlLong = art_quick_shl_long;
    216   qpoints->pShrLong = art_quick_shr_long;
    217   qpoints->pUshrLong = art_quick_ushr_long;
    218 
    219   // Intrinsics
    220   qpoints->pIndexOf = art_quick_indexof;
    221   qpoints->pMemcmp16 = __memcmp16;
    222   qpoints->pStringCompareTo = art_quick_string_compareto;
    223   qpoints->pMemcpy = memcpy;
    224 
    225   // Invocation
    226   qpoints->pQuickResolutionTrampoline = art_quick_resolution_trampoline;
    227   qpoints->pQuickToInterpreterBridge = art_quick_to_interpreter_bridge;
    228   qpoints->pInvokeDirectTrampolineWithAccessCheck = art_quick_invoke_direct_trampoline_with_access_check;
    229   qpoints->pInvokeInterfaceTrampoline = art_quick_invoke_interface_trampoline;
    230   qpoints->pInvokeInterfaceTrampolineWithAccessCheck = art_quick_invoke_interface_trampoline_with_access_check;
    231   qpoints->pInvokeStaticTrampolineWithAccessCheck = art_quick_invoke_static_trampoline_with_access_check;
    232   qpoints->pInvokeSuperTrampolineWithAccessCheck = art_quick_invoke_super_trampoline_with_access_check;
    233   qpoints->pInvokeVirtualTrampolineWithAccessCheck = art_quick_invoke_virtual_trampoline_with_access_check;
    234 
    235   // Thread
    236   qpoints->pCheckSuspend = CheckSuspendFromCode;
    237   qpoints->pTestSuspend = art_quick_test_suspend;
    238 
    239   // Throws
    240   qpoints->pDeliverException = art_quick_deliver_exception;
    241   qpoints->pThrowArrayBounds = art_quick_throw_array_bounds;
    242   qpoints->pThrowDivZero = art_quick_throw_div_zero;
    243   qpoints->pThrowNoSuchMethod = art_quick_throw_no_such_method;
    244   qpoints->pThrowNullPointer = art_quick_throw_null_pointer_exception;
    245   qpoints->pThrowStackOverflow = art_quick_throw_stack_overflow;
    246 };
    247 
    248 }  // namespace art
    249