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      1 /*
      2  * Copyright (C) 2011 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 #ifndef ART_RUNTIME_ASM_SUPPORT_H_
     18 #define ART_RUNTIME_ASM_SUPPORT_H_
     19 
     20 #if defined(__cplusplus)
     21 #include "art_method.h"
     22 #include "gc/allocator/rosalloc.h"
     23 #include "jit/jit.h"
     24 #include "lock_word.h"
     25 #include "mirror/class.h"
     26 #include "mirror/string.h"
     27 #include "runtime.h"
     28 #include "thread.h"
     29 #endif
     30 
     31 #include "read_barrier_c.h"
     32 
     33 #if defined(__arm__) || defined(__mips__)
     34 // In quick code for ARM and MIPS we make poor use of registers and perform frequent suspend
     35 // checks in the event of loop back edges. The SUSPEND_CHECK_INTERVAL constant is loaded into a
     36 // register at the point of an up-call or after handling a suspend check. It reduces the number of
     37 // loads of the TLS suspend check value by the given amount (turning it into a decrement and compare
     38 // of a register). This increases the time for a thread to respond to requests from GC and the
     39 // debugger, damaging GC performance and creating other unwanted artifacts. For example, this count
     40 // has the effect of making loops and Java code look cold in profilers, where the count is reset
     41 // impacts where samples will occur. Reducing the count as much as possible improves profiler
     42 // accuracy in tools like traceview.
     43 // TODO: get a compiler that can do a proper job of loop optimization and remove this.
     44 #define SUSPEND_CHECK_INTERVAL 96
     45 #endif
     46 
     47 #if defined(__cplusplus)
     48 
     49 #ifndef ADD_TEST_EQ  // Allow #include-r to replace with their own.
     50 #define ADD_TEST_EQ(x, y) CHECK_EQ(x, y);
     51 #endif
     52 
     53 static inline void CheckAsmSupportOffsetsAndSizes() {
     54 #else
     55 #define ADD_TEST_EQ(x, y)
     56 #endif
     57 
     58 #if defined(__LP64__)
     59 #define POINTER_SIZE_SHIFT 3
     60 #else
     61 #define POINTER_SIZE_SHIFT 2
     62 #endif
     63 ADD_TEST_EQ(static_cast<size_t>(1U << POINTER_SIZE_SHIFT),
     64             static_cast<size_t>(__SIZEOF_POINTER__))
     65 
     66 // Size of references to the heap on the stack.
     67 #define STACK_REFERENCE_SIZE 4
     68 ADD_TEST_EQ(static_cast<size_t>(STACK_REFERENCE_SIZE), sizeof(art::StackReference<art::mirror::Object>))
     69 
     70 // Size of heap references
     71 #define COMPRESSED_REFERENCE_SIZE 4
     72 ADD_TEST_EQ(static_cast<size_t>(COMPRESSED_REFERENCE_SIZE),
     73             sizeof(art::mirror::CompressedReference<art::mirror::Object>))
     74 
     75 #define COMPRESSED_REFERENCE_SIZE_SHIFT 2
     76 ADD_TEST_EQ(static_cast<size_t>(1U << COMPRESSED_REFERENCE_SIZE_SHIFT),
     77             static_cast<size_t>(COMPRESSED_REFERENCE_SIZE))
     78 
     79 // Note: these callee save methods loads require read barriers.
     80 // Offset of field Runtime::callee_save_methods_[kSaveAll]
     81 #define RUNTIME_SAVE_ALL_CALLEE_SAVE_FRAME_OFFSET 0
     82 ADD_TEST_EQ(static_cast<size_t>(RUNTIME_SAVE_ALL_CALLEE_SAVE_FRAME_OFFSET),
     83             art::Runtime::GetCalleeSaveMethodOffset(art::Runtime::kSaveAll))
     84 
     85 // Offset of field Runtime::callee_save_methods_[kRefsOnly]
     86 #define RUNTIME_REFS_ONLY_CALLEE_SAVE_FRAME_OFFSET 8
     87 ADD_TEST_EQ(static_cast<size_t>(RUNTIME_REFS_ONLY_CALLEE_SAVE_FRAME_OFFSET),
     88             art::Runtime::GetCalleeSaveMethodOffset(art::Runtime::kRefsOnly))
     89 
     90 // Offset of field Runtime::callee_save_methods_[kRefsAndArgs]
     91 #define RUNTIME_REFS_AND_ARGS_CALLEE_SAVE_FRAME_OFFSET (2 * 8)
     92 ADD_TEST_EQ(static_cast<size_t>(RUNTIME_REFS_AND_ARGS_CALLEE_SAVE_FRAME_OFFSET),
     93             art::Runtime::GetCalleeSaveMethodOffset(art::Runtime::kRefsAndArgs))
     94 
     95 // Offset of field Thread::tls32_.state_and_flags.
     96 #define THREAD_FLAGS_OFFSET 0
     97 ADD_TEST_EQ(THREAD_FLAGS_OFFSET,
     98             art::Thread::ThreadFlagsOffset<__SIZEOF_POINTER__>().Int32Value())
     99 
    100 // Offset of field Thread::tls32_.thin_lock_thread_id.
    101 #define THREAD_ID_OFFSET 12
    102 ADD_TEST_EQ(THREAD_ID_OFFSET,
    103             art::Thread::ThinLockIdOffset<__SIZEOF_POINTER__>().Int32Value())
    104 
    105 // Offset of field Thread::tls32_.is_gc_marking.
    106 #define THREAD_IS_GC_MARKING_OFFSET 52
    107 ADD_TEST_EQ(THREAD_IS_GC_MARKING_OFFSET,
    108             art::Thread::IsGcMarkingOffset<__SIZEOF_POINTER__>().Int32Value())
    109 
    110 // Offset of field Thread::tlsPtr_.card_table.
    111 #define THREAD_CARD_TABLE_OFFSET 128
    112 ADD_TEST_EQ(THREAD_CARD_TABLE_OFFSET,
    113             art::Thread::CardTableOffset<__SIZEOF_POINTER__>().Int32Value())
    114 
    115 // Offset of field Thread::tlsPtr_.exception.
    116 #define THREAD_EXCEPTION_OFFSET (THREAD_CARD_TABLE_OFFSET + __SIZEOF_POINTER__)
    117 ADD_TEST_EQ(THREAD_EXCEPTION_OFFSET,
    118             art::Thread::ExceptionOffset<__SIZEOF_POINTER__>().Int32Value())
    119 
    120 // Offset of field Thread::tlsPtr_.managed_stack.top_quick_frame_.
    121 #define THREAD_TOP_QUICK_FRAME_OFFSET (THREAD_CARD_TABLE_OFFSET + (3 * __SIZEOF_POINTER__))
    122 ADD_TEST_EQ(THREAD_TOP_QUICK_FRAME_OFFSET,
    123             art::Thread::TopOfManagedStackOffset<__SIZEOF_POINTER__>().Int32Value())
    124 
    125 // Offset of field Thread::tlsPtr_.self.
    126 #define THREAD_SELF_OFFSET (THREAD_CARD_TABLE_OFFSET + (9 * __SIZEOF_POINTER__))
    127 ADD_TEST_EQ(THREAD_SELF_OFFSET,
    128             art::Thread::SelfOffset<__SIZEOF_POINTER__>().Int32Value())
    129 
    130 // Offset of field Thread::tlsPtr_.thread_local_objects.
    131 #define THREAD_LOCAL_OBJECTS_OFFSET (THREAD_CARD_TABLE_OFFSET + 168 * __SIZEOF_POINTER__)
    132 ADD_TEST_EQ(THREAD_LOCAL_OBJECTS_OFFSET,
    133             art::Thread::ThreadLocalObjectsOffset<__SIZEOF_POINTER__>().Int32Value())
    134 // Offset of field Thread::tlsPtr_.thread_local_pos.
    135 #define THREAD_LOCAL_POS_OFFSET (THREAD_LOCAL_OBJECTS_OFFSET + 2 * __SIZEOF_POINTER__)
    136 ADD_TEST_EQ(THREAD_LOCAL_POS_OFFSET,
    137             art::Thread::ThreadLocalPosOffset<__SIZEOF_POINTER__>().Int32Value())
    138 // Offset of field Thread::tlsPtr_.thread_local_end.
    139 #define THREAD_LOCAL_END_OFFSET (THREAD_LOCAL_POS_OFFSET + __SIZEOF_POINTER__)
    140 ADD_TEST_EQ(THREAD_LOCAL_END_OFFSET,
    141             art::Thread::ThreadLocalEndOffset<__SIZEOF_POINTER__>().Int32Value())
    142 // Offset of field Thread::tlsPtr_.mterp_current_ibase.
    143 #define THREAD_CURRENT_IBASE_OFFSET (THREAD_LOCAL_POS_OFFSET + 2 * __SIZEOF_POINTER__)
    144 ADD_TEST_EQ(THREAD_CURRENT_IBASE_OFFSET,
    145             art::Thread::MterpCurrentIBaseOffset<__SIZEOF_POINTER__>().Int32Value())
    146 // Offset of field Thread::tlsPtr_.mterp_default_ibase.
    147 #define THREAD_DEFAULT_IBASE_OFFSET (THREAD_LOCAL_POS_OFFSET + 3 * __SIZEOF_POINTER__)
    148 ADD_TEST_EQ(THREAD_DEFAULT_IBASE_OFFSET,
    149             art::Thread::MterpDefaultIBaseOffset<__SIZEOF_POINTER__>().Int32Value())
    150 // Offset of field Thread::tlsPtr_.mterp_alt_ibase.
    151 #define THREAD_ALT_IBASE_OFFSET (THREAD_LOCAL_POS_OFFSET + 4 * __SIZEOF_POINTER__)
    152 ADD_TEST_EQ(THREAD_ALT_IBASE_OFFSET,
    153             art::Thread::MterpAltIBaseOffset<__SIZEOF_POINTER__>().Int32Value())
    154 // Offset of field Thread::tlsPtr_.rosalloc_runs.
    155 #define THREAD_ROSALLOC_RUNS_OFFSET (THREAD_LOCAL_POS_OFFSET + 5 * __SIZEOF_POINTER__)
    156 ADD_TEST_EQ(THREAD_ROSALLOC_RUNS_OFFSET,
    157             art::Thread::RosAllocRunsOffset<__SIZEOF_POINTER__>().Int32Value())
    158 // Offset of field Thread::tlsPtr_.thread_local_alloc_stack_top.
    159 #define THREAD_LOCAL_ALLOC_STACK_TOP_OFFSET (THREAD_ROSALLOC_RUNS_OFFSET + 16 * __SIZEOF_POINTER__)
    160 ADD_TEST_EQ(THREAD_LOCAL_ALLOC_STACK_TOP_OFFSET,
    161             art::Thread::ThreadLocalAllocStackTopOffset<__SIZEOF_POINTER__>().Int32Value())
    162 // Offset of field Thread::tlsPtr_.thread_local_alloc_stack_end.
    163 #define THREAD_LOCAL_ALLOC_STACK_END_OFFSET (THREAD_ROSALLOC_RUNS_OFFSET + 17 * __SIZEOF_POINTER__)
    164 ADD_TEST_EQ(THREAD_LOCAL_ALLOC_STACK_END_OFFSET,
    165             art::Thread::ThreadLocalAllocStackEndOffset<__SIZEOF_POINTER__>().Int32Value())
    166 
    167 // Offsets within ShadowFrame.
    168 #define SHADOWFRAME_LINK_OFFSET 0
    169 ADD_TEST_EQ(SHADOWFRAME_LINK_OFFSET,
    170             static_cast<int32_t>(art::ShadowFrame::LinkOffset()))
    171 #define SHADOWFRAME_METHOD_OFFSET (SHADOWFRAME_LINK_OFFSET + 1 * __SIZEOF_POINTER__)
    172 ADD_TEST_EQ(SHADOWFRAME_METHOD_OFFSET,
    173             static_cast<int32_t>(art::ShadowFrame::MethodOffset()))
    174 #define SHADOWFRAME_RESULT_REGISTER_OFFSET (SHADOWFRAME_LINK_OFFSET + 2 * __SIZEOF_POINTER__)
    175 ADD_TEST_EQ(SHADOWFRAME_RESULT_REGISTER_OFFSET,
    176             static_cast<int32_t>(art::ShadowFrame::ResultRegisterOffset()))
    177 #define SHADOWFRAME_DEX_PC_PTR_OFFSET (SHADOWFRAME_LINK_OFFSET + 3 * __SIZEOF_POINTER__)
    178 ADD_TEST_EQ(SHADOWFRAME_DEX_PC_PTR_OFFSET,
    179             static_cast<int32_t>(art::ShadowFrame::DexPCPtrOffset()))
    180 #define SHADOWFRAME_CODE_ITEM_OFFSET (SHADOWFRAME_LINK_OFFSET + 4 * __SIZEOF_POINTER__)
    181 ADD_TEST_EQ(SHADOWFRAME_CODE_ITEM_OFFSET,
    182             static_cast<int32_t>(art::ShadowFrame::CodeItemOffset()))
    183 #define SHADOWFRAME_LOCK_COUNT_DATA_OFFSET (SHADOWFRAME_LINK_OFFSET + 5 * __SIZEOF_POINTER__)
    184 ADD_TEST_EQ(SHADOWFRAME_LOCK_COUNT_DATA_OFFSET,
    185             static_cast<int32_t>(art::ShadowFrame::LockCountDataOffset()))
    186 #define SHADOWFRAME_NUMBER_OF_VREGS_OFFSET (SHADOWFRAME_LINK_OFFSET + 6 * __SIZEOF_POINTER__)
    187 ADD_TEST_EQ(SHADOWFRAME_NUMBER_OF_VREGS_OFFSET,
    188             static_cast<int32_t>(art::ShadowFrame::NumberOfVRegsOffset()))
    189 #define SHADOWFRAME_DEX_PC_OFFSET (SHADOWFRAME_NUMBER_OF_VREGS_OFFSET + 4)
    190 ADD_TEST_EQ(SHADOWFRAME_DEX_PC_OFFSET,
    191             static_cast<int32_t>(art::ShadowFrame::DexPCOffset()))
    192 #define SHADOWFRAME_CACHED_HOTNESS_COUNTDOWN_OFFSET (SHADOWFRAME_NUMBER_OF_VREGS_OFFSET + 8)
    193 ADD_TEST_EQ(SHADOWFRAME_CACHED_HOTNESS_COUNTDOWN_OFFSET,
    194             static_cast<int32_t>(art::ShadowFrame::CachedHotnessCountdownOffset()))
    195 #define SHADOWFRAME_HOTNESS_COUNTDOWN_OFFSET (SHADOWFRAME_NUMBER_OF_VREGS_OFFSET + 10)
    196 ADD_TEST_EQ(SHADOWFRAME_HOTNESS_COUNTDOWN_OFFSET,
    197             static_cast<int32_t>(art::ShadowFrame::HotnessCountdownOffset()))
    198 #define SHADOWFRAME_VREGS_OFFSET (SHADOWFRAME_NUMBER_OF_VREGS_OFFSET + 12)
    199 ADD_TEST_EQ(SHADOWFRAME_VREGS_OFFSET,
    200             static_cast<int32_t>(art::ShadowFrame::VRegsOffset()))
    201 
    202 // Offsets within CodeItem
    203 #define CODEITEM_INSNS_OFFSET 16
    204 ADD_TEST_EQ(CODEITEM_INSNS_OFFSET,
    205             static_cast<int32_t>(OFFSETOF_MEMBER(art::DexFile::CodeItem, insns_)))
    206 
    207 // Offsets within java.lang.Object.
    208 #define MIRROR_OBJECT_CLASS_OFFSET 0
    209 ADD_TEST_EQ(MIRROR_OBJECT_CLASS_OFFSET, art::mirror::Object::ClassOffset().Int32Value())
    210 #define MIRROR_OBJECT_LOCK_WORD_OFFSET 4
    211 ADD_TEST_EQ(MIRROR_OBJECT_LOCK_WORD_OFFSET, art::mirror::Object::MonitorOffset().Int32Value())
    212 
    213 #if defined(USE_BROOKS_READ_BARRIER)
    214 #define MIRROR_OBJECT_HEADER_SIZE 16
    215 #else
    216 #define MIRROR_OBJECT_HEADER_SIZE 8
    217 #endif
    218 ADD_TEST_EQ(size_t(MIRROR_OBJECT_HEADER_SIZE), sizeof(art::mirror::Object))
    219 
    220 // Offsets within java.lang.Class.
    221 #define MIRROR_CLASS_COMPONENT_TYPE_OFFSET (8 + MIRROR_OBJECT_HEADER_SIZE)
    222 ADD_TEST_EQ(MIRROR_CLASS_COMPONENT_TYPE_OFFSET,
    223             art::mirror::Class::ComponentTypeOffset().Int32Value())
    224 #define MIRROR_CLASS_ACCESS_FLAGS_OFFSET (36 + MIRROR_OBJECT_HEADER_SIZE)
    225 ADD_TEST_EQ(MIRROR_CLASS_ACCESS_FLAGS_OFFSET,
    226             art::mirror::Class::AccessFlagsOffset().Int32Value())
    227 #define MIRROR_CLASS_OBJECT_SIZE_OFFSET (100 + MIRROR_OBJECT_HEADER_SIZE)
    228 ADD_TEST_EQ(MIRROR_CLASS_OBJECT_SIZE_OFFSET,
    229             art::mirror::Class::ObjectSizeOffset().Int32Value())
    230 #define MIRROR_CLASS_STATUS_OFFSET (112 + MIRROR_OBJECT_HEADER_SIZE)
    231 ADD_TEST_EQ(MIRROR_CLASS_STATUS_OFFSET,
    232             art::mirror::Class::StatusOffset().Int32Value())
    233 
    234 #define MIRROR_CLASS_STATUS_INITIALIZED 10
    235 ADD_TEST_EQ(static_cast<uint32_t>(MIRROR_CLASS_STATUS_INITIALIZED),
    236             static_cast<uint32_t>(art::mirror::Class::kStatusInitialized))
    237 #define ACCESS_FLAGS_CLASS_IS_FINALIZABLE 0x80000000
    238 ADD_TEST_EQ(static_cast<uint32_t>(ACCESS_FLAGS_CLASS_IS_FINALIZABLE),
    239             static_cast<uint32_t>(art::kAccClassIsFinalizable))
    240 #define ACCESS_FLAGS_CLASS_IS_FINALIZABLE_BIT 31
    241 ADD_TEST_EQ(static_cast<uint32_t>(ACCESS_FLAGS_CLASS_IS_FINALIZABLE),
    242             static_cast<uint32_t>(1U << ACCESS_FLAGS_CLASS_IS_FINALIZABLE_BIT))
    243 
    244 // Array offsets.
    245 #define MIRROR_ARRAY_LENGTH_OFFSET      MIRROR_OBJECT_HEADER_SIZE
    246 ADD_TEST_EQ(MIRROR_ARRAY_LENGTH_OFFSET, art::mirror::Array::LengthOffset().Int32Value())
    247 
    248 #define MIRROR_CHAR_ARRAY_DATA_OFFSET   (4 + MIRROR_OBJECT_HEADER_SIZE)
    249 ADD_TEST_EQ(MIRROR_CHAR_ARRAY_DATA_OFFSET,
    250             art::mirror::Array::DataOffset(sizeof(uint16_t)).Int32Value())
    251 
    252 #define MIRROR_BOOLEAN_ARRAY_DATA_OFFSET MIRROR_CHAR_ARRAY_DATA_OFFSET
    253 ADD_TEST_EQ(MIRROR_BOOLEAN_ARRAY_DATA_OFFSET,
    254             art::mirror::Array::DataOffset(sizeof(uint8_t)).Int32Value())
    255 
    256 #define MIRROR_BYTE_ARRAY_DATA_OFFSET MIRROR_CHAR_ARRAY_DATA_OFFSET
    257 ADD_TEST_EQ(MIRROR_BYTE_ARRAY_DATA_OFFSET,
    258             art::mirror::Array::DataOffset(sizeof(int8_t)).Int32Value())
    259 
    260 #define MIRROR_SHORT_ARRAY_DATA_OFFSET MIRROR_CHAR_ARRAY_DATA_OFFSET
    261 ADD_TEST_EQ(MIRROR_SHORT_ARRAY_DATA_OFFSET,
    262             art::mirror::Array::DataOffset(sizeof(int16_t)).Int32Value())
    263 
    264 #define MIRROR_INT_ARRAY_DATA_OFFSET MIRROR_CHAR_ARRAY_DATA_OFFSET
    265 ADD_TEST_EQ(MIRROR_INT_ARRAY_DATA_OFFSET,
    266             art::mirror::Array::DataOffset(sizeof(int32_t)).Int32Value())
    267 
    268 #define MIRROR_WIDE_ARRAY_DATA_OFFSET (8 + MIRROR_OBJECT_HEADER_SIZE)
    269 ADD_TEST_EQ(MIRROR_WIDE_ARRAY_DATA_OFFSET,
    270             art::mirror::Array::DataOffset(sizeof(uint64_t)).Int32Value())
    271 
    272 #define MIRROR_OBJECT_ARRAY_DATA_OFFSET (4 + MIRROR_OBJECT_HEADER_SIZE)
    273 ADD_TEST_EQ(MIRROR_OBJECT_ARRAY_DATA_OFFSET,
    274     art::mirror::Array::DataOffset(
    275         sizeof(art::mirror::HeapReference<art::mirror::Object>)).Int32Value())
    276 
    277 #define MIRROR_OBJECT_ARRAY_COMPONENT_SIZE 4
    278 ADD_TEST_EQ(static_cast<size_t>(MIRROR_OBJECT_ARRAY_COMPONENT_SIZE),
    279             sizeof(art::mirror::HeapReference<art::mirror::Object>))
    280 
    281 #define MIRROR_LONG_ARRAY_DATA_OFFSET (8 + MIRROR_OBJECT_HEADER_SIZE)
    282 ADD_TEST_EQ(MIRROR_LONG_ARRAY_DATA_OFFSET,
    283             art::mirror::Array::DataOffset(sizeof(uint64_t)).Int32Value())
    284 
    285 // Offsets within java.lang.String.
    286 #define MIRROR_STRING_COUNT_OFFSET  MIRROR_OBJECT_HEADER_SIZE
    287 ADD_TEST_EQ(MIRROR_STRING_COUNT_OFFSET, art::mirror::String::CountOffset().Int32Value())
    288 
    289 #define MIRROR_STRING_VALUE_OFFSET (8 + MIRROR_OBJECT_HEADER_SIZE)
    290 ADD_TEST_EQ(MIRROR_STRING_VALUE_OFFSET, art::mirror::String::ValueOffset().Int32Value())
    291 
    292 // Offsets within java.lang.reflect.ArtMethod.
    293 #define ART_METHOD_DEX_CACHE_METHODS_OFFSET_32 20
    294 ADD_TEST_EQ(ART_METHOD_DEX_CACHE_METHODS_OFFSET_32,
    295             art::ArtMethod::DexCacheResolvedMethodsOffset(4).Int32Value())
    296 
    297 #define ART_METHOD_DEX_CACHE_METHODS_OFFSET_64 24
    298 ADD_TEST_EQ(ART_METHOD_DEX_CACHE_METHODS_OFFSET_64,
    299             art::ArtMethod::DexCacheResolvedMethodsOffset(8).Int32Value())
    300 
    301 #define ART_METHOD_DEX_CACHE_TYPES_OFFSET_32 24
    302 ADD_TEST_EQ(ART_METHOD_DEX_CACHE_TYPES_OFFSET_32,
    303             art::ArtMethod::DexCacheResolvedTypesOffset(4).Int32Value())
    304 
    305 #define ART_METHOD_DEX_CACHE_TYPES_OFFSET_64 32
    306 ADD_TEST_EQ(ART_METHOD_DEX_CACHE_TYPES_OFFSET_64,
    307             art::ArtMethod::DexCacheResolvedTypesOffset(8).Int32Value())
    308 
    309 #define ART_METHOD_JNI_OFFSET_32 28
    310 ADD_TEST_EQ(ART_METHOD_JNI_OFFSET_32,
    311             art::ArtMethod::EntryPointFromJniOffset(4).Int32Value())
    312 
    313 #define ART_METHOD_JNI_OFFSET_64 40
    314 ADD_TEST_EQ(ART_METHOD_JNI_OFFSET_64,
    315             art::ArtMethod::EntryPointFromJniOffset(8).Int32Value())
    316 
    317 #define ART_METHOD_QUICK_CODE_OFFSET_32 32
    318 ADD_TEST_EQ(ART_METHOD_QUICK_CODE_OFFSET_32,
    319             art::ArtMethod::EntryPointFromQuickCompiledCodeOffset(4).Int32Value())
    320 
    321 #define ART_METHOD_QUICK_CODE_OFFSET_64 48
    322 ADD_TEST_EQ(ART_METHOD_QUICK_CODE_OFFSET_64,
    323             art::ArtMethod::EntryPointFromQuickCompiledCodeOffset(8).Int32Value())
    324 
    325 #define LOCK_WORD_STATE_SHIFT 30
    326 ADD_TEST_EQ(LOCK_WORD_STATE_SHIFT, static_cast<int32_t>(art::LockWord::kStateShift))
    327 
    328 #define LOCK_WORD_STATE_MASK 0xC0000000
    329 ADD_TEST_EQ(LOCK_WORD_STATE_MASK, static_cast<uint32_t>(art::LockWord::kStateMaskShifted))
    330 
    331 #define LOCK_WORD_READ_BARRIER_STATE_SHIFT 28
    332 ADD_TEST_EQ(LOCK_WORD_READ_BARRIER_STATE_SHIFT,
    333             static_cast<int32_t>(art::LockWord::kReadBarrierStateShift))
    334 
    335 #define LOCK_WORD_READ_BARRIER_STATE_MASK 0x30000000
    336 ADD_TEST_EQ(LOCK_WORD_READ_BARRIER_STATE_MASK,
    337             static_cast<int32_t>(art::LockWord::kReadBarrierStateMaskShifted))
    338 
    339 #define LOCK_WORD_READ_BARRIER_STATE_MASK_TOGGLED 0xCFFFFFFF
    340 ADD_TEST_EQ(LOCK_WORD_READ_BARRIER_STATE_MASK_TOGGLED,
    341             static_cast<uint32_t>(art::LockWord::kReadBarrierStateMaskShiftedToggled))
    342 
    343 #define LOCK_WORD_THIN_LOCK_COUNT_ONE 65536
    344 ADD_TEST_EQ(LOCK_WORD_THIN_LOCK_COUNT_ONE, static_cast<int32_t>(art::LockWord::kThinLockCountOne))
    345 
    346 #define OBJECT_ALIGNMENT_MASK 7
    347 ADD_TEST_EQ(static_cast<size_t>(OBJECT_ALIGNMENT_MASK), art::kObjectAlignment - 1)
    348 
    349 #define OBJECT_ALIGNMENT_MASK_TOGGLED 0xFFFFFFF8
    350 ADD_TEST_EQ(static_cast<uint32_t>(OBJECT_ALIGNMENT_MASK_TOGGLED),
    351             ~static_cast<uint32_t>(art::kObjectAlignment - 1))
    352 
    353 #define ROSALLOC_MAX_THREAD_LOCAL_BRACKET_SIZE 128
    354 ADD_TEST_EQ(ROSALLOC_MAX_THREAD_LOCAL_BRACKET_SIZE,
    355             static_cast<int32_t>(art::gc::allocator::RosAlloc::kMaxThreadLocalBracketSize))
    356 
    357 #define ROSALLOC_BRACKET_QUANTUM_SIZE_SHIFT 3
    358 ADD_TEST_EQ(ROSALLOC_BRACKET_QUANTUM_SIZE_SHIFT,
    359             static_cast<int32_t>(art::gc::allocator::RosAlloc::kThreadLocalBracketQuantumSizeShift))
    360 
    361 #define ROSALLOC_BRACKET_QUANTUM_SIZE_MASK 7
    362 ADD_TEST_EQ(ROSALLOC_BRACKET_QUANTUM_SIZE_MASK,
    363             static_cast<int32_t>(art::gc::allocator::RosAlloc::kThreadLocalBracketQuantumSize - 1))
    364 
    365 #define ROSALLOC_BRACKET_QUANTUM_SIZE_MASK_TOGGLED32 0xfffffff8
    366 ADD_TEST_EQ(static_cast<uint32_t>(ROSALLOC_BRACKET_QUANTUM_SIZE_MASK_TOGGLED32),
    367             ~static_cast<uint32_t>(
    368                 art::gc::allocator::RosAlloc::kThreadLocalBracketQuantumSize - 1))
    369 
    370 #define ROSALLOC_BRACKET_QUANTUM_SIZE_MASK_TOGGLED64 0xfffffffffffffff8
    371 ADD_TEST_EQ(static_cast<uint64_t>(ROSALLOC_BRACKET_QUANTUM_SIZE_MASK_TOGGLED64),
    372             ~static_cast<uint64_t>(
    373                 art::gc::allocator::RosAlloc::kThreadLocalBracketQuantumSize - 1))
    374 
    375 #define ROSALLOC_RUN_FREE_LIST_OFFSET 8
    376 ADD_TEST_EQ(ROSALLOC_RUN_FREE_LIST_OFFSET,
    377             static_cast<int32_t>(art::gc::allocator::RosAlloc::RunFreeListOffset()))
    378 
    379 #define ROSALLOC_RUN_FREE_LIST_HEAD_OFFSET 0
    380 ADD_TEST_EQ(ROSALLOC_RUN_FREE_LIST_HEAD_OFFSET,
    381             static_cast<int32_t>(art::gc::allocator::RosAlloc::RunFreeListHeadOffset()))
    382 
    383 #define ROSALLOC_RUN_FREE_LIST_SIZE_OFFSET 16
    384 ADD_TEST_EQ(ROSALLOC_RUN_FREE_LIST_SIZE_OFFSET,
    385             static_cast<int32_t>(art::gc::allocator::RosAlloc::RunFreeListSizeOffset()))
    386 
    387 #define ROSALLOC_SLOT_NEXT_OFFSET 0
    388 ADD_TEST_EQ(ROSALLOC_SLOT_NEXT_OFFSET,
    389             static_cast<int32_t>(art::gc::allocator::RosAlloc::RunSlotNextOffset()))
    390 // Assert this so that we can avoid zeroing the next field by installing the class pointer.
    391 ADD_TEST_EQ(ROSALLOC_SLOT_NEXT_OFFSET, MIRROR_OBJECT_CLASS_OFFSET)
    392 
    393 #define THREAD_SUSPEND_REQUEST 1
    394 ADD_TEST_EQ(THREAD_SUSPEND_REQUEST, static_cast<int32_t>(art::kSuspendRequest))
    395 
    396 #define THREAD_CHECKPOINT_REQUEST 2
    397 ADD_TEST_EQ(THREAD_CHECKPOINT_REQUEST, static_cast<int32_t>(art::kCheckpointRequest))
    398 
    399 #define JIT_CHECK_OSR -1
    400 ADD_TEST_EQ(JIT_CHECK_OSR, static_cast<int32_t>(art::jit::kJitCheckForOSR))
    401 
    402 #define JIT_HOTNESS_DISABLE -2
    403 ADD_TEST_EQ(JIT_HOTNESS_DISABLE, static_cast<int32_t>(art::jit::kJitHotnessDisabled))
    404 
    405 #if defined(__cplusplus)
    406 }  // End of CheckAsmSupportOffsets.
    407 #endif
    408 
    409 #endif  // ART_RUNTIME_ASM_SUPPORT_H_
    410