space_bitmap.cc revision 8cf9cb386cd9286d67e879f1ee501ec00d72a4e1
1b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier/* 2b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * Copyright (C) 2008 The Android Open Source Project 3b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * 4b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * Licensed under the Apache License, Version 2.0 (the "License"); 5b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * you may not use this file except in compliance with the License. 6b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * You may obtain a copy of the License at 7b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * 8b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * http://www.apache.org/licenses/LICENSE-2.0 9b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * 10b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * Unless required by applicable law or agreed to in writing, software 11b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * distributed under the License is distributed on an "AS IS" BASIS, 12b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * See the License for the specific language governing permissions and 14b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier * limitations under the License. 15b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier */ 16b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier 172dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers#include "space_bitmap-inl.h" 18b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier 1946ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampe#include "android-base/stringprintf.h" 2046ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampe 21c785344b87221f5e4e6473e5b762e4e61fe65dcfMathieu Chartier#include "art_field-inl.h" 22956af0f0cb05422e38c1d22cbef309d16b8a1a12Elliott Hughes#include "dex_file-inl.h" 2322d5e735f403c57525fe868304c7123f0ce66399Ian Rogers#include "mem_map.h" 24e401d146407d61eeb99f8d6176b2ac13c4df1e33Mathieu Chartier#include "mirror/class-inl.h" 258cf9cb386cd9286d67e879f1ee501ec00d72a4e1Andreas Gampe#include "mirror/object-inl.h" 2622d5e735f403c57525fe868304c7123f0ce66399Ian Rogers#include "mirror/object_array.h" 2722d5e735f403c57525fe868304c7123f0ce66399Ian Rogers 28b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartiernamespace art { 291d54e73444e017d3a65234e0f193846f3e27472bIan Rogersnamespace gc { 301d54e73444e017d3a65234e0f193846f3e27472bIan Rogersnamespace accounting { 31b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier 3246ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampeusing android::base::StringPrintf; 3346ee31b67d7ee1bd085fbc240502053caa3cf8faAndreas Gampe 34a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate<size_t kAlignment> 3573d1e17b3afc7d5e56184f90bf819dc64956448aMathieu Chartiersize_t SpaceBitmap<kAlignment>::ComputeBitmapSize(uint64_t capacity) { 3613735955f39b3b304c37d2b2840663c131262c18Ian Rogers const uint64_t kBytesCoveredPerWord = kAlignment * kBitsPerIntPtrT; 3713735955f39b3b304c37d2b2840663c131262c18Ian Rogers return (RoundUp(capacity, kBytesCoveredPerWord) / kBytesCoveredPerWord) * sizeof(intptr_t); 3873d1e17b3afc7d5e56184f90bf819dc64956448aMathieu Chartier} 3973d1e17b3afc7d5e56184f90bf819dc64956448aMathieu Chartier 4073d1e17b3afc7d5e56184f90bf819dc64956448aMathieu Chartiertemplate<size_t kAlignment> 41d39645e22b8db1767cf64dc1200a9e4b2f939ed2Mathieu Chartiersize_t SpaceBitmap<kAlignment>::ComputeHeapSize(uint64_t bitmap_bytes) { 42d39645e22b8db1767cf64dc1200a9e4b2f939ed2Mathieu Chartier return bitmap_bytes * kBitsPerByte * kAlignment; 43d39645e22b8db1767cf64dc1200a9e4b2f939ed2Mathieu Chartier} 44d39645e22b8db1767cf64dc1200a9e4b2f939ed2Mathieu Chartier 45d39645e22b8db1767cf64dc1200a9e4b2f939ed2Mathieu Chartiertemplate<size_t kAlignment> 46a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu ChartierSpaceBitmap<kAlignment>* SpaceBitmap<kAlignment>::CreateFromMemMap( 4713735955f39b3b304c37d2b2840663c131262c18Ian Rogers const std::string& name, MemMap* mem_map, uint8_t* heap_begin, size_t heap_capacity) { 4831e8925781c2302f1d1a9b39e216ba415bfe0d7eMathieu Chartier CHECK(mem_map != nullptr); 4913735955f39b3b304c37d2b2840663c131262c18Ian Rogers uintptr_t* bitmap_begin = reinterpret_cast<uintptr_t*>(mem_map->Begin()); 5073d1e17b3afc7d5e56184f90bf819dc64956448aMathieu Chartier const size_t bitmap_size = ComputeBitmapSize(heap_capacity); 5131e8925781c2302f1d1a9b39e216ba415bfe0d7eMathieu Chartier return new SpaceBitmap(name, mem_map, bitmap_begin, bitmap_size, heap_begin); 5231e8925781c2302f1d1a9b39e216ba415bfe0d7eMathieu Chartier} 5331e8925781c2302f1d1a9b39e216ba415bfe0d7eMathieu Chartier 54a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate<size_t kAlignment> 5513735955f39b3b304c37d2b2840663c131262c18Ian RogersSpaceBitmap<kAlignment>::SpaceBitmap(const std::string& name, MemMap* mem_map, uintptr_t* bitmap_begin, 56bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier size_t bitmap_size, const void* heap_begin) 57c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier : mem_map_(mem_map), 58c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier bitmap_begin_(reinterpret_cast<Atomic<uintptr_t>*>(bitmap_begin)), 59c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier bitmap_size_(bitmap_size), 60bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier heap_begin_(reinterpret_cast<uintptr_t>(heap_begin)), 61bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier name_(name) { 62bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier CHECK(bitmap_begin_ != nullptr); 63bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier CHECK_NE(bitmap_size, 0U); 64bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier} 65bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier 66bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartiertemplate<size_t kAlignment> 6722d5e735f403c57525fe868304c7123f0ce66399Ian RogersSpaceBitmap<kAlignment>::~SpaceBitmap() {} 6822d5e735f403c57525fe868304c7123f0ce66399Ian Rogers 6922d5e735f403c57525fe868304c7123f0ce66399Ian Rogerstemplate<size_t kAlignment> 70a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu ChartierSpaceBitmap<kAlignment>* SpaceBitmap<kAlignment>::Create( 7113735955f39b3b304c37d2b2840663c131262c18Ian Rogers const std::string& name, uint8_t* heap_begin, size_t heap_capacity) { 72b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier // Round up since heap_capacity is not necessarily a multiple of kAlignment * kBitsPerWord. 7373d1e17b3afc7d5e56184f90bf819dc64956448aMathieu Chartier const size_t bitmap_size = ComputeBitmapSize(heap_capacity); 748d31bbd3d6536de12bc20e3d29cfe03fe848f9daIan Rogers std::string error_msg; 75700a402244a1a423da4f3ba8032459f4b65fa18fIan Rogers std::unique_ptr<MemMap> mem_map(MemMap::MapAnonymous(name.c_str(), nullptr, bitmap_size, 765c42c29b89286e5efa4a4613132b09051ce5945bVladimir Marko PROT_READ | PROT_WRITE, false, false, 775c42c29b89286e5efa4a4613132b09051ce5945bVladimir Marko &error_msg)); 788d31bbd3d6536de12bc20e3d29cfe03fe848f9daIan Rogers if (UNLIKELY(mem_map.get() == nullptr)) { 798d31bbd3d6536de12bc20e3d29cfe03fe848f9daIan Rogers LOG(ERROR) << "Failed to allocate bitmap " << name << ": " << error_msg; 80bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier return nullptr; 81b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 8231e8925781c2302f1d1a9b39e216ba415bfe0d7eMathieu Chartier return CreateFromMemMap(name, mem_map.release(), heap_begin, heap_capacity); 83b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier} 84b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier 85a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate<size_t kAlignment> 86a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiervoid SpaceBitmap<kAlignment>::SetHeapLimit(uintptr_t new_end) { 8714d90579f013b374638b599361970557ed4b3f09Roland Levillain DCHECK_ALIGNED(new_end, kBitsPerIntPtrT * kAlignment); 8813735955f39b3b304c37d2b2840663c131262c18Ian Rogers size_t new_size = OffsetToIndex(new_end - heap_begin_) * sizeof(intptr_t); 89cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier if (new_size < bitmap_size_) { 90cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier bitmap_size_ = new_size; 91cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier } 92cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier // Not sure if doing this trim is necessary, since nothing past the end of the heap capacity 93cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier // should be marked. 94cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier} 95cc236d74772dda5a4161d9bc5f497fd3d956eb87Mathieu Chartier 96a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate<size_t kAlignment> 97576ca0cd692c0b6ae70e776de91015b8ff000a08Ian Rogersstd::string SpaceBitmap<kAlignment>::Dump() const { 98576ca0cd692c0b6ae70e776de91015b8ff000a08Ian Rogers return StringPrintf("%s: %p-%p", name_.c_str(), reinterpret_cast<void*>(HeapBegin()), 99576ca0cd692c0b6ae70e776de91015b8ff000a08Ian Rogers reinterpret_cast<void*>(HeapLimit())); 100576ca0cd692c0b6ae70e776de91015b8ff000a08Ian Rogers} 101576ca0cd692c0b6ae70e776de91015b8ff000a08Ian Rogers 102576ca0cd692c0b6ae70e776de91015b8ff000a08Ian Rogerstemplate<size_t kAlignment> 103a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiervoid SpaceBitmap<kAlignment>::Clear() { 104c5f17732d8144491c642776b6b48c85dfadf4b52Ian Rogers if (bitmap_begin_ != nullptr) { 105c5f17732d8144491c642776b6b48c85dfadf4b52Ian Rogers mem_map_->MadviseDontNeedAndZero(); 106b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 107b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier} 108b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier 109a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate<size_t kAlignment> 1107ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartiervoid SpaceBitmap<kAlignment>::ClearRange(const mirror::Object* begin, const mirror::Object* end) { 1117ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier uintptr_t begin_offset = reinterpret_cast<uintptr_t>(begin) - heap_begin_; 1127ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier uintptr_t end_offset = reinterpret_cast<uintptr_t>(end) - heap_begin_; 1137ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier // Align begin and end to word boundaries. 1147ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier while (begin_offset < end_offset && OffsetBitIndex(begin_offset) != 0) { 1157ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier Clear(reinterpret_cast<mirror::Object*>(heap_begin_ + begin_offset)); 1167ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier begin_offset += kAlignment; 1177ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier } 1187ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier while (begin_offset < end_offset && OffsetBitIndex(end_offset) != 0) { 1197ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier end_offset -= kAlignment; 1207ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier Clear(reinterpret_cast<mirror::Object*>(heap_begin_ + end_offset)); 1217ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier } 1227ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier const uintptr_t start_index = OffsetToIndex(begin_offset); 1237ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier const uintptr_t end_index = OffsetToIndex(end_offset); 1246e6078ab06e16bb4032b363316360f3b76685e30Mathieu Chartier ZeroAndReleasePages(reinterpret_cast<uint8_t*>(&bitmap_begin_[start_index]), 1256e6078ab06e16bb4032b363316360f3b76685e30Mathieu Chartier (end_index - start_index) * sizeof(*bitmap_begin_)); 1267ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier} 1277ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartier 1287ec38dcb84d61f6172bbb5a303bd5ab7139f7409Mathieu Chartiertemplate<size_t kAlignment> 129bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartiervoid SpaceBitmap<kAlignment>::CopyFrom(SpaceBitmap* source_bitmap) { 130357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier DCHECK_EQ(Size(), source_bitmap->Size()); 131c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier const size_t count = source_bitmap->Size() / sizeof(intptr_t); 132c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier Atomic<uintptr_t>* const src = source_bitmap->Begin(); 133c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier Atomic<uintptr_t>* const dest = Begin(); 134c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier for (size_t i = 0; i < count; ++i) { 135c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier dest[i].StoreRelaxed(src[i].LoadRelaxed()); 136c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier } 137357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier} 138357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier 139a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate<size_t kAlignment> 140a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiervoid SpaceBitmap<kAlignment>::SweepWalk(const SpaceBitmap<kAlignment>& live_bitmap, 141bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier const SpaceBitmap<kAlignment>& mark_bitmap, 142bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier uintptr_t sweep_begin, uintptr_t sweep_end, 143bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier SpaceBitmap::SweepCallback* callback, void* arg) { 144bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier CHECK(live_bitmap.bitmap_begin_ != nullptr); 145bbd695c71e0bf518f582e84524e1cdeb3de3896cMathieu Chartier CHECK(mark_bitmap.bitmap_begin_ != nullptr); 146b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier CHECK_EQ(live_bitmap.heap_begin_, mark_bitmap.heap_begin_); 147b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier CHECK_EQ(live_bitmap.bitmap_size_, mark_bitmap.bitmap_size_); 1482cebb24bfc3247d3e9be138a3350106737455918Mathieu Chartier CHECK(callback != nullptr); 149b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier CHECK_LE(sweep_begin, sweep_end); 150b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier CHECK_GE(sweep_begin, live_bitmap.heap_begin_); 151357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier 152357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier if (sweep_end <= sweep_begin) { 153b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier return; 154b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 155357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier 1562dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers // TODO: rewrite the callbacks to accept a std::vector<mirror::Object*> rather than a mirror::Object**? 15713735955f39b3b304c37d2b2840663c131262c18Ian Rogers constexpr size_t buffer_size = sizeof(intptr_t) * kBitsPerIntPtrT; 158262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe#ifdef __LP64__ 159262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe // Heap-allocate for smaller stack frame. 160262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe std::unique_ptr<mirror::Object*[]> pointer_buf_ptr(new mirror::Object*[buffer_size]); 161262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe mirror::Object** pointer_buf = pointer_buf_ptr.get(); 162262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe#else 163262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe // Stack-allocate buffer as it's small enough. 1642dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object* pointer_buf[buffer_size]; 165262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe#endif 1662dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers mirror::Object** pb = &pointer_buf[0]; 167262a0a36ee5f553880365fecf0be1a188526ca69Andreas Gampe 168b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier size_t start = OffsetToIndex(sweep_begin - live_bitmap.heap_begin_); 169357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier size_t end = OffsetToIndex(sweep_end - live_bitmap.heap_begin_ - 1); 17013735955f39b3b304c37d2b2840663c131262c18Ian Rogers CHECK_LT(end, live_bitmap.Size() / sizeof(intptr_t)); 171c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier Atomic<uintptr_t>* live = live_bitmap.bitmap_begin_; 172c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier Atomic<uintptr_t>* mark = mark_bitmap.bitmap_begin_; 173b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier for (size_t i = start; i <= end; i++) { 174c381c36aacf977f7e314e6a91e47b31b04639f62Mathieu Chartier uintptr_t garbage = live[i].LoadRelaxed() & ~mark[i].LoadRelaxed(); 175b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier if (UNLIKELY(garbage != 0)) { 176b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier uintptr_t ptr_base = IndexToOffset(i) + live_bitmap.heap_begin_; 177357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier do { 178cb8aea4bd5e77857c713edeb62bffcb1f7f06a39Andreas Gampe const size_t shift = CTZ(garbage); 17913735955f39b3b304c37d2b2840663c131262c18Ian Rogers garbage ^= (static_cast<uintptr_t>(1)) << shift; 1802dd0e2cea360bc9206eb88ecc40d259e796c239dIan Rogers *pb++ = reinterpret_cast<mirror::Object*>(ptr_base + shift * kAlignment); 181357e9be24c17a6bc2ae9fb53f25c73503116101dMathieu Chartier } while (garbage != 0); 182b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier // Make sure that there are always enough slots available for an 183b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier // entire word of one bits. 18413735955f39b3b304c37d2b2840663c131262c18Ian Rogers if (pb >= &pointer_buf[buffer_size - kBitsPerIntPtrT]) { 185b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier (*callback)(pb - &pointer_buf[0], &pointer_buf[0], arg); 186b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier pb = &pointer_buf[0]; 187b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 188b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 189b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 190b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier if (pb > &pointer_buf[0]) { 191b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier (*callback)(pb - &pointer_buf[0], &pointer_buf[0], arg); 192b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier } 193b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier} 194b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier 195a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate class SpaceBitmap<kObjectAlignment>; 196a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartiertemplate class SpaceBitmap<kPageSize>; 197a8e8f9c0a8e259a807d7b99a148d14104c24209dMathieu Chartier 1981d54e73444e017d3a65234e0f193846f3e27472bIan Rogers} // namespace accounting 1991d54e73444e017d3a65234e0f193846f3e27472bIan Rogers} // namespace gc 200b062fdd4cb097fbae69b4bcb479c34d83ecab8caMathieu Chartier} // namespace art 201