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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/quick/quick_alloc_entrypoints.h"
     18 
     19 #include "callee_save_frame.h"
     20 #include "entrypoints/entrypoint_utils-inl.h"
     21 #include "mirror/art_method-inl.h"
     22 #include "mirror/class-inl.h"
     23 #include "mirror/object_array-inl.h"
     24 #include "mirror/object-inl.h"
     25 
     26 namespace art {
     27 
     28 #define GENERATE_ENTRYPOINTS_FOR_ALLOCATOR_INST(suffix, suffix2, instrumented_bool, allocator_type) \
     29 extern "C" mirror::Object* artAllocObjectFromCode ##suffix##suffix2( \
     30     uint32_t type_idx, mirror::ArtMethod* method, Thread* self, \
     31     StackReference<mirror::ArtMethod>* sp) \
     32     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     33   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     34   return AllocObjectFromCode<false, instrumented_bool>(type_idx, method, self, allocator_type); \
     35 } \
     36 extern "C" mirror::Object* artAllocObjectFromCodeResolved##suffix##suffix2( \
     37     mirror::Class* klass, mirror::ArtMethod* method, Thread* self, \
     38     StackReference<mirror::ArtMethod>* sp) \
     39     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     40   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     41   return AllocObjectFromCodeResolved<instrumented_bool>(klass, method, self, allocator_type); \
     42 } \
     43 extern "C" mirror::Object* artAllocObjectFromCodeInitialized##suffix##suffix2( \
     44     mirror::Class* klass, mirror::ArtMethod* method, Thread* self, \
     45     StackReference<mirror::ArtMethod>* sp) \
     46     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     47   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     48   return AllocObjectFromCodeInitialized<instrumented_bool>(klass, method, self, allocator_type); \
     49 } \
     50 extern "C" mirror::Object* artAllocObjectFromCodeWithAccessCheck##suffix##suffix2( \
     51     uint32_t type_idx, mirror::ArtMethod* method, Thread* self, \
     52     StackReference<mirror::ArtMethod>* sp) \
     53     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     54   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     55   return AllocObjectFromCode<true, instrumented_bool>(type_idx, method, self, allocator_type); \
     56 } \
     57 extern "C" mirror::Array* artAllocArrayFromCode##suffix##suffix2( \
     58     uint32_t type_idx, mirror::ArtMethod* method, int32_t component_count, Thread* self, \
     59     StackReference<mirror::ArtMethod>* sp) \
     60     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     61   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     62   return AllocArrayFromCode<false, instrumented_bool>(type_idx, method, component_count, self, \
     63                                                       allocator_type); \
     64 } \
     65 extern "C" mirror::Array* artAllocArrayFromCodeResolved##suffix##suffix2( \
     66     mirror::Class* klass, mirror::ArtMethod* method, int32_t component_count, Thread* self, \
     67     StackReference<mirror::ArtMethod>* sp) \
     68     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     69   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     70   return AllocArrayFromCodeResolved<false, instrumented_bool>(klass, method, component_count, self, \
     71                                                               allocator_type); \
     72 } \
     73 extern "C" mirror::Array* artAllocArrayFromCodeWithAccessCheck##suffix##suffix2( \
     74     uint32_t type_idx, mirror::ArtMethod* method, int32_t component_count, Thread* self, \
     75     StackReference<mirror::ArtMethod>* sp) \
     76     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     77   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     78   return AllocArrayFromCode<true, instrumented_bool>(type_idx, method, component_count, self, \
     79                                                      allocator_type); \
     80 } \
     81 extern "C" mirror::Array* artCheckAndAllocArrayFromCode##suffix##suffix2( \
     82     uint32_t type_idx, mirror::ArtMethod* method, int32_t component_count, Thread* self, \
     83     StackReference<mirror::ArtMethod>* sp) \
     84     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     85   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     86   if (!instrumented_bool) { \
     87     return CheckAndAllocArrayFromCode(type_idx, method, component_count, self, false, allocator_type); \
     88   } else { \
     89     return CheckAndAllocArrayFromCodeInstrumented(type_idx, method, component_count, self, false, allocator_type); \
     90   } \
     91 } \
     92 extern "C" mirror::Array* artCheckAndAllocArrayFromCodeWithAccessCheck##suffix##suffix2( \
     93     uint32_t type_idx, mirror::ArtMethod* method, int32_t component_count, Thread* self, \
     94     StackReference<mirror::ArtMethod>* sp) \
     95     SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) { \
     96   FinishCalleeSaveFrameSetup(self, sp, Runtime::kRefsOnly); \
     97   if (!instrumented_bool) { \
     98     return CheckAndAllocArrayFromCode(type_idx, method, component_count, self, true, allocator_type); \
     99   } else { \
    100     return CheckAndAllocArrayFromCodeInstrumented(type_idx, method, component_count, self, true, allocator_type); \
    101   } \
    102 }
    103 
    104 #define GENERATE_ENTRYPOINTS_FOR_ALLOCATOR(suffix, allocator_type) \
    105     GENERATE_ENTRYPOINTS_FOR_ALLOCATOR_INST(suffix, Instrumented, true, allocator_type) \
    106     GENERATE_ENTRYPOINTS_FOR_ALLOCATOR_INST(suffix, , false, allocator_type)
    107 
    108 GENERATE_ENTRYPOINTS_FOR_ALLOCATOR(DlMalloc, gc::kAllocatorTypeDlMalloc)
    109 GENERATE_ENTRYPOINTS_FOR_ALLOCATOR(RosAlloc, gc::kAllocatorTypeRosAlloc)
    110 GENERATE_ENTRYPOINTS_FOR_ALLOCATOR(BumpPointer, gc::kAllocatorTypeBumpPointer)
    111 GENERATE_ENTRYPOINTS_FOR_ALLOCATOR(TLAB, gc::kAllocatorTypeTLAB)
    112 
    113 #define GENERATE_ENTRYPOINTS(suffix) \
    114 extern "C" void* art_quick_alloc_array##suffix(uint32_t, void*, int32_t); \
    115 extern "C" void* art_quick_alloc_array_resolved##suffix(void* klass, void*, int32_t); \
    116 extern "C" void* art_quick_alloc_array_with_access_check##suffix(uint32_t, void*, int32_t); \
    117 extern "C" void* art_quick_alloc_object##suffix(uint32_t type_idx, void* method); \
    118 extern "C" void* art_quick_alloc_object_resolved##suffix(void* klass, void* method); \
    119 extern "C" void* art_quick_alloc_object_initialized##suffix(void* klass, void* method); \
    120 extern "C" void* art_quick_alloc_object_with_access_check##suffix(uint32_t type_idx, void* method); \
    121 extern "C" void* art_quick_check_and_alloc_array##suffix(uint32_t, void*, int32_t); \
    122 extern "C" void* art_quick_check_and_alloc_array_with_access_check##suffix(uint32_t, void*, int32_t); \
    123 extern "C" void* art_quick_alloc_array##suffix##_instrumented(uint32_t, void*, int32_t); \
    124 extern "C" void* art_quick_alloc_array_resolved##suffix##_instrumented(void* klass, void*, int32_t); \
    125 extern "C" void* art_quick_alloc_array_with_access_check##suffix##_instrumented(uint32_t, void*, int32_t); \
    126 extern "C" void* art_quick_alloc_object##suffix##_instrumented(uint32_t type_idx, void* method); \
    127 extern "C" void* art_quick_alloc_object_resolved##suffix##_instrumented(void* klass, void* method); \
    128 extern "C" void* art_quick_alloc_object_initialized##suffix##_instrumented(void* klass, void* method); \
    129 extern "C" void* art_quick_alloc_object_with_access_check##suffix##_instrumented(uint32_t type_idx, void* method); \
    130 extern "C" void* art_quick_check_and_alloc_array##suffix##_instrumented(uint32_t, void*, int32_t); \
    131 extern "C" void* art_quick_check_and_alloc_array_with_access_check##suffix##_instrumented(uint32_t, void*, int32_t); \
    132 void SetQuickAllocEntryPoints##suffix(QuickEntryPoints* qpoints, bool instrumented) { \
    133   if (instrumented) { \
    134     qpoints->pAllocArray = art_quick_alloc_array##suffix##_instrumented; \
    135     qpoints->pAllocArrayResolved = art_quick_alloc_array_resolved##suffix##_instrumented; \
    136     qpoints->pAllocArrayWithAccessCheck = art_quick_alloc_array_with_access_check##suffix##_instrumented; \
    137     qpoints->pAllocObject = art_quick_alloc_object##suffix##_instrumented; \
    138     qpoints->pAllocObjectResolved = art_quick_alloc_object_resolved##suffix##_instrumented; \
    139     qpoints->pAllocObjectInitialized = art_quick_alloc_object_initialized##suffix##_instrumented; \
    140     qpoints->pAllocObjectWithAccessCheck = art_quick_alloc_object_with_access_check##suffix##_instrumented; \
    141     qpoints->pCheckAndAllocArray = art_quick_check_and_alloc_array##suffix##_instrumented; \
    142     qpoints->pCheckAndAllocArrayWithAccessCheck = art_quick_check_and_alloc_array_with_access_check##suffix##_instrumented; \
    143   } else { \
    144     qpoints->pAllocArray = art_quick_alloc_array##suffix; \
    145     qpoints->pAllocArrayResolved = art_quick_alloc_array_resolved##suffix; \
    146     qpoints->pAllocArrayWithAccessCheck = art_quick_alloc_array_with_access_check##suffix; \
    147     qpoints->pAllocObject = art_quick_alloc_object##suffix; \
    148     qpoints->pAllocObjectResolved = art_quick_alloc_object_resolved##suffix; \
    149     qpoints->pAllocObjectInitialized = art_quick_alloc_object_initialized##suffix; \
    150     qpoints->pAllocObjectWithAccessCheck = art_quick_alloc_object_with_access_check##suffix; \
    151     qpoints->pCheckAndAllocArray = art_quick_check_and_alloc_array##suffix; \
    152     qpoints->pCheckAndAllocArrayWithAccessCheck = art_quick_check_and_alloc_array_with_access_check##suffix; \
    153   } \
    154 }
    155 
    156 // Generate the entrypoint functions.
    157 #if !defined(__APPLE__) || !defined(__LP64__)
    158 GENERATE_ENTRYPOINTS(_dlmalloc);
    159 GENERATE_ENTRYPOINTS(_rosalloc);
    160 GENERATE_ENTRYPOINTS(_bump_pointer);
    161 GENERATE_ENTRYPOINTS(_tlab);
    162 #endif
    163 
    164 static bool entry_points_instrumented = false;
    165 static gc::AllocatorType entry_points_allocator = gc::kAllocatorTypeDlMalloc;
    166 
    167 void SetQuickAllocEntryPointsAllocator(gc::AllocatorType allocator) {
    168   entry_points_allocator = allocator;
    169 }
    170 
    171 void SetQuickAllocEntryPointsInstrumented(bool instrumented) {
    172   entry_points_instrumented = instrumented;
    173 }
    174 
    175 void ResetQuickAllocEntryPoints(QuickEntryPoints* qpoints) {
    176   switch (entry_points_allocator) {
    177 #if !defined(__APPLE__) || !defined(__LP64__)
    178     case gc::kAllocatorTypeDlMalloc: {
    179       SetQuickAllocEntryPoints_dlmalloc(qpoints, entry_points_instrumented);
    180       break;
    181     }
    182     case gc::kAllocatorTypeRosAlloc: {
    183       SetQuickAllocEntryPoints_rosalloc(qpoints, entry_points_instrumented);
    184       break;
    185     }
    186     case gc::kAllocatorTypeBumpPointer: {
    187       CHECK(kMovingCollector);
    188       SetQuickAllocEntryPoints_bump_pointer(qpoints, entry_points_instrumented);
    189       break;
    190     }
    191     case gc::kAllocatorTypeTLAB: {
    192       CHECK(kMovingCollector);
    193       SetQuickAllocEntryPoints_tlab(qpoints, entry_points_instrumented);
    194       break;
    195     }
    196 #endif
    197     default: {
    198       LOG(FATAL) << "Unimplemented";
    199     }
    200   }
    201 }
    202 
    203 }  // namespace art
    204