Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | */ |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 16 | |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 17 | #include "stack_map_stream.h" |
| 18 | |
Andreas Gampe | 90b936d | 2017-01-31 08:58:55 -0800 | [diff] [blame] | 19 | #include "art_method-inl.h" |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 20 | #include "base/stl_util.h" |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 21 | #include "dex_file_types.h" |
Nicolas Geoffray | fbdfa6d | 2017-02-03 10:43:13 +0000 | [diff] [blame] | 22 | #include "optimizing/optimizing_compiler.h" |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 23 | #include "runtime.h" |
| 24 | #include "scoped_thread_state_change-inl.h" |
| 25 | |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 26 | namespace art { |
| 27 | |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 28 | void StackMapStream::BeginStackMapEntry(uint32_t dex_pc, |
| 29 | uint32_t native_pc_offset, |
| 30 | uint32_t register_mask, |
| 31 | BitVector* sp_mask, |
| 32 | uint32_t num_dex_registers, |
| 33 | uint8_t inlining_depth) { |
| 34 | DCHECK_EQ(0u, current_entry_.dex_pc) << "EndStackMapEntry not called after BeginStackMapEntry"; |
Calin Juravle | b5c4693 | 2015-10-06 17:09:49 +0100 | [diff] [blame] | 35 | DCHECK_NE(dex_pc, static_cast<uint32_t>(-1)) << "invalid dex_pc"; |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 36 | current_entry_.dex_pc = dex_pc; |
Mathieu Chartier | a2f526f | 2017-01-19 14:48:48 -0800 | [diff] [blame] | 37 | current_entry_.native_pc_code_offset = CodeOffset::FromOffset(native_pc_offset, instruction_set_); |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 38 | current_entry_.register_mask = register_mask; |
| 39 | current_entry_.sp_mask = sp_mask; |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 40 | current_entry_.inlining_depth = inlining_depth; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 41 | current_entry_.inline_infos_start_index = inline_infos_.size(); |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 42 | current_entry_.stack_mask_index = 0; |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 43 | current_entry_.dex_method_index = dex::kDexNoIndex; |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 44 | current_entry_.dex_register_entry.num_dex_registers = num_dex_registers; |
| 45 | current_entry_.dex_register_entry.locations_start_index = dex_register_locations_.size(); |
| 46 | current_entry_.dex_register_entry.live_dex_registers_mask = (num_dex_registers != 0) |
| 47 | ? ArenaBitVector::Create(allocator_, num_dex_registers, true, kArenaAllocStackMapStream) |
| 48 | : nullptr; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 49 | if (sp_mask != nullptr) { |
| 50 | stack_mask_max_ = std::max(stack_mask_max_, sp_mask->GetHighestBitSet()); |
| 51 | } |
| 52 | if (inlining_depth > 0) { |
| 53 | number_of_stack_maps_with_inline_info_++; |
| 54 | } |
| 55 | |
| 56 | dex_pc_max_ = std::max(dex_pc_max_, dex_pc); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 57 | register_mask_max_ = std::max(register_mask_max_, register_mask); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 58 | current_dex_register_ = 0; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 59 | } |
| 60 | |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 61 | void StackMapStream::EndStackMapEntry() { |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 62 | current_entry_.dex_register_map_index = AddDexRegisterMapEntry(current_entry_.dex_register_entry); |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 63 | stack_maps_.push_back(current_entry_); |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 64 | current_entry_ = StackMapEntry(); |
| 65 | } |
| 66 | |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 67 | void StackMapStream::AddDexRegisterEntry(DexRegisterLocation::Kind kind, int32_t value) { |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 68 | if (kind != DexRegisterLocation::Kind::kNone) { |
| 69 | // Ensure we only use non-compressed location kind at this stage. |
David Srbecky | 7dc1178 | 2016-02-25 13:23:56 +0000 | [diff] [blame] | 70 | DCHECK(DexRegisterLocation::IsShortLocationKind(kind)) << kind; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 71 | DexRegisterLocation location(kind, value); |
| 72 | |
| 73 | // Look for Dex register `location` in the location catalog (using the |
| 74 | // companion hash map of locations to indices). Use its index if it |
| 75 | // is already in the location catalog. If not, insert it (in the |
| 76 | // location catalog and the hash map) and use the newly created index. |
| 77 | auto it = location_catalog_entries_indices_.Find(location); |
| 78 | if (it != location_catalog_entries_indices_.end()) { |
| 79 | // Retrieve the index from the hash map. |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 80 | dex_register_locations_.push_back(it->second); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 81 | } else { |
| 82 | // Create a new entry in the location catalog and the hash map. |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 83 | size_t index = location_catalog_entries_.size(); |
| 84 | location_catalog_entries_.push_back(location); |
| 85 | dex_register_locations_.push_back(index); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 86 | location_catalog_entries_indices_.Insert(std::make_pair(location, index)); |
| 87 | } |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 88 | DexRegisterMapEntry* const entry = in_inline_frame_ |
| 89 | ? ¤t_inline_info_.dex_register_entry |
| 90 | : ¤t_entry_.dex_register_entry; |
| 91 | DCHECK_LT(current_dex_register_, entry->num_dex_registers); |
| 92 | entry->live_dex_registers_mask->SetBit(current_dex_register_); |
| 93 | entry->hash += (1 << |
| 94 | (current_dex_register_ % (sizeof(DexRegisterMapEntry::hash) * kBitsPerByte))); |
| 95 | entry->hash += static_cast<uint32_t>(value); |
| 96 | entry->hash += static_cast<uint32_t>(kind); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 97 | } |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 98 | current_dex_register_++; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 99 | } |
| 100 | |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 101 | void StackMapStream::AddInvoke(InvokeType invoke_type, uint32_t dex_method_index) { |
| 102 | current_entry_.invoke_type = invoke_type; |
| 103 | current_entry_.dex_method_index = dex_method_index; |
| 104 | } |
| 105 | |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 106 | void StackMapStream::BeginInlineInfoEntry(ArtMethod* method, |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 107 | uint32_t dex_pc, |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 108 | uint32_t num_dex_registers, |
| 109 | const DexFile* outer_dex_file) { |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 110 | DCHECK(!in_inline_frame_); |
| 111 | in_inline_frame_ = true; |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 112 | if (EncodeArtMethodInInlineInfo(method)) { |
| 113 | current_inline_info_.method = method; |
| 114 | } else { |
| 115 | if (dex_pc != static_cast<uint32_t>(-1) && kIsDebugBuild) { |
| 116 | ScopedObjectAccess soa(Thread::Current()); |
| 117 | DCHECK(IsSameDexFile(*outer_dex_file, *method->GetDexFile())); |
| 118 | } |
| 119 | current_inline_info_.method_index = method->GetDexMethodIndexUnchecked(); |
| 120 | } |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 121 | current_inline_info_.dex_pc = dex_pc; |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 122 | current_inline_info_.dex_register_entry.num_dex_registers = num_dex_registers; |
| 123 | current_inline_info_.dex_register_entry.locations_start_index = dex_register_locations_.size(); |
| 124 | current_inline_info_.dex_register_entry.live_dex_registers_mask = (num_dex_registers != 0) |
| 125 | ? ArenaBitVector::Create(allocator_, num_dex_registers, true, kArenaAllocStackMapStream) |
| 126 | : nullptr; |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 127 | current_dex_register_ = 0; |
| 128 | } |
| 129 | |
| 130 | void StackMapStream::EndInlineInfoEntry() { |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 131 | current_inline_info_.dex_register_map_index = |
| 132 | AddDexRegisterMapEntry(current_inline_info_.dex_register_entry); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 133 | DCHECK(in_inline_frame_); |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 134 | DCHECK_EQ(current_dex_register_, current_inline_info_.dex_register_entry.num_dex_registers) |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 135 | << "Inline information contains less registers than expected"; |
| 136 | in_inline_frame_ = false; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 137 | inline_infos_.push_back(current_inline_info_); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 138 | current_inline_info_ = InlineInfoEntry(); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 139 | } |
| 140 | |
Mathieu Chartier | a2f526f | 2017-01-19 14:48:48 -0800 | [diff] [blame] | 141 | CodeOffset StackMapStream::ComputeMaxNativePcCodeOffset() const { |
| 142 | CodeOffset max_native_pc_offset; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 143 | for (const StackMapEntry& entry : stack_maps_) { |
Mathieu Chartier | a2f526f | 2017-01-19 14:48:48 -0800 | [diff] [blame] | 144 | max_native_pc_offset = std::max(max_native_pc_offset, entry.native_pc_code_offset); |
Vladimir Marko | bd8c725 | 2015-06-12 10:06:32 +0100 | [diff] [blame] | 145 | } |
| 146 | return max_native_pc_offset; |
| 147 | } |
| 148 | |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 149 | size_t StackMapStream::PrepareForFillIn() { |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 150 | CodeInfoEncoding encoding; |
| 151 | encoding.dex_register_map.num_entries = 0; // TODO: Remove this field. |
| 152 | encoding.dex_register_map.num_bytes = ComputeDexRegisterMapsSize(); |
| 153 | encoding.location_catalog.num_entries = location_catalog_entries_.size(); |
| 154 | encoding.location_catalog.num_bytes = ComputeDexRegisterLocationCatalogSize(); |
| 155 | encoding.inline_info.num_entries = inline_infos_.size(); |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 156 | // Must be done before calling ComputeInlineInfoEncoding since ComputeInlineInfoEncoding requires |
| 157 | // dex_method_index_idx to be filled in. |
| 158 | PrepareMethodIndices(); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 159 | ComputeInlineInfoEncoding(&encoding.inline_info.encoding, |
| 160 | encoding.dex_register_map.num_bytes); |
Mathieu Chartier | a2f526f | 2017-01-19 14:48:48 -0800 | [diff] [blame] | 161 | CodeOffset max_native_pc_offset = ComputeMaxNativePcCodeOffset(); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 162 | // Prepare the CodeInfo variable-sized encoding. |
| 163 | encoding.stack_mask.encoding.num_bits = stack_mask_max_ + 1; // Need room for max element too. |
| 164 | encoding.stack_mask.num_entries = PrepareStackMasks(encoding.stack_mask.encoding.num_bits); |
| 165 | encoding.register_mask.encoding.num_bits = MinimumBitsToStore(register_mask_max_); |
| 166 | encoding.register_mask.num_entries = PrepareRegisterMasks(); |
| 167 | encoding.stack_map.num_entries = stack_maps_.size(); |
| 168 | encoding.stack_map.encoding.SetFromSizes( |
| 169 | // The stack map contains compressed native PC offsets. |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 170 | max_native_pc_offset.CompressedValue(), |
| 171 | dex_pc_max_, |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 172 | encoding.dex_register_map.num_bytes, |
| 173 | encoding.inline_info.num_entries, |
| 174 | encoding.register_mask.num_entries, |
| 175 | encoding.stack_mask.num_entries); |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 176 | ComputeInvokeInfoEncoding(&encoding); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 177 | DCHECK_EQ(code_info_encoding_.size(), 0u); |
| 178 | encoding.Compress(&code_info_encoding_); |
| 179 | encoding.ComputeTableOffsets(); |
| 180 | // Compute table offsets so we can get the non header size. |
| 181 | DCHECK_EQ(encoding.HeaderSize(), code_info_encoding_.size()); |
| 182 | needed_size_ = code_info_encoding_.size() + encoding.NonHeaderSize(); |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 183 | return needed_size_; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 184 | } |
| 185 | |
| 186 | size_t StackMapStream::ComputeDexRegisterLocationCatalogSize() const { |
| 187 | size_t size = DexRegisterLocationCatalog::kFixedSize; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 188 | for (const DexRegisterLocation& dex_register_location : location_catalog_entries_) { |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 189 | size += DexRegisterLocationCatalog::EntrySize(dex_register_location); |
| 190 | } |
| 191 | return size; |
| 192 | } |
| 193 | |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 194 | size_t StackMapStream::DexRegisterMapEntry::ComputeSize(size_t catalog_size) const { |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 195 | // For num_dex_registers == 0u live_dex_registers_mask may be null. |
| 196 | if (num_dex_registers == 0u) { |
| 197 | return 0u; // No register map will be emitted. |
| 198 | } |
| 199 | DCHECK(live_dex_registers_mask != nullptr); |
| 200 | |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 201 | // Size of the map in bytes. |
| 202 | size_t size = DexRegisterMap::kFixedSize; |
| 203 | // Add the live bit mask for the Dex register liveness. |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 204 | size += DexRegisterMap::GetLiveBitMaskSize(num_dex_registers); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 205 | // Compute the size of the set of live Dex register entries. |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 206 | size_t number_of_live_dex_registers = live_dex_registers_mask->NumSetBits(); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 207 | size_t map_entries_size_in_bits = |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 208 | DexRegisterMap::SingleEntrySizeInBits(catalog_size) * number_of_live_dex_registers; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 209 | size_t map_entries_size_in_bytes = |
| 210 | RoundUp(map_entries_size_in_bits, kBitsPerByte) / kBitsPerByte; |
| 211 | size += map_entries_size_in_bytes; |
| 212 | return size; |
| 213 | } |
| 214 | |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 215 | size_t StackMapStream::ComputeDexRegisterMapsSize() const { |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 216 | size_t size = 0; |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 217 | for (const DexRegisterMapEntry& entry : dex_register_entries_) { |
| 218 | size += entry.ComputeSize(location_catalog_entries_.size()); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 219 | } |
| 220 | return size; |
| 221 | } |
| 222 | |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 223 | void StackMapStream::ComputeInvokeInfoEncoding(CodeInfoEncoding* encoding) { |
| 224 | DCHECK(encoding != nullptr); |
| 225 | uint32_t native_pc_max = 0; |
| 226 | uint16_t method_index_max = 0; |
| 227 | size_t invoke_infos_count = 0; |
| 228 | size_t invoke_type_max = 0; |
| 229 | for (const StackMapEntry& entry : stack_maps_) { |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 230 | if (entry.dex_method_index != dex::kDexNoIndex) { |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 231 | native_pc_max = std::max(native_pc_max, entry.native_pc_code_offset.CompressedValue()); |
| 232 | method_index_max = std::max(method_index_max, static_cast<uint16_t>(entry.dex_method_index)); |
| 233 | invoke_type_max = std::max(invoke_type_max, static_cast<size_t>(entry.invoke_type)); |
| 234 | ++invoke_infos_count; |
| 235 | } |
| 236 | } |
| 237 | encoding->invoke_info.num_entries = invoke_infos_count; |
| 238 | encoding->invoke_info.encoding.SetFromSizes(native_pc_max, invoke_type_max, method_index_max); |
| 239 | } |
| 240 | |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 241 | void StackMapStream::ComputeInlineInfoEncoding(InlineInfoEncoding* encoding, |
| 242 | size_t dex_register_maps_bytes) { |
David Srbecky | 61b28a1 | 2016-02-25 21:55:03 +0000 | [diff] [blame] | 243 | uint32_t method_index_max = 0; |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 244 | uint32_t dex_pc_max = dex::kDexNoIndex; |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 245 | uint32_t extra_data_max = 0; |
David Srbecky | 61b28a1 | 2016-02-25 21:55:03 +0000 | [diff] [blame] | 246 | |
| 247 | uint32_t inline_info_index = 0; |
| 248 | for (const StackMapEntry& entry : stack_maps_) { |
| 249 | for (size_t j = 0; j < entry.inlining_depth; ++j) { |
| 250 | InlineInfoEntry inline_entry = inline_infos_[inline_info_index++]; |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 251 | if (inline_entry.method == nullptr) { |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 252 | method_index_max = std::max(method_index_max, inline_entry.dex_method_index_idx); |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 253 | extra_data_max = std::max(extra_data_max, 1u); |
| 254 | } else { |
| 255 | method_index_max = std::max( |
| 256 | method_index_max, High32Bits(reinterpret_cast<uintptr_t>(inline_entry.method))); |
| 257 | extra_data_max = std::max( |
| 258 | extra_data_max, Low32Bits(reinterpret_cast<uintptr_t>(inline_entry.method))); |
| 259 | } |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 260 | if (inline_entry.dex_pc != dex::kDexNoIndex && |
| 261 | (dex_pc_max == dex::kDexNoIndex || dex_pc_max < inline_entry.dex_pc)) { |
Vladimir Marko | 87f3fcb | 2016-04-28 15:52:11 +0100 | [diff] [blame] | 262 | dex_pc_max = inline_entry.dex_pc; |
| 263 | } |
David Srbecky | 61b28a1 | 2016-02-25 21:55:03 +0000 | [diff] [blame] | 264 | } |
| 265 | } |
| 266 | DCHECK_EQ(inline_info_index, inline_infos_.size()); |
| 267 | |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 268 | encoding->SetFromSizes(method_index_max, dex_pc_max, extra_data_max, dex_register_maps_bytes); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 269 | } |
| 270 | |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 271 | size_t StackMapStream::MaybeCopyDexRegisterMap(DexRegisterMapEntry& entry, |
| 272 | size_t* current_offset, |
| 273 | MemoryRegion dex_register_locations_region) { |
| 274 | DCHECK(current_offset != nullptr); |
| 275 | if ((entry.num_dex_registers == 0) || (entry.live_dex_registers_mask->NumSetBits() == 0)) { |
| 276 | // No dex register map needed. |
| 277 | return StackMap::kNoDexRegisterMap; |
| 278 | } |
| 279 | if (entry.offset == DexRegisterMapEntry::kOffsetUnassigned) { |
| 280 | // Not already copied, need to copy and and assign an offset. |
| 281 | entry.offset = *current_offset; |
| 282 | const size_t entry_size = entry.ComputeSize(location_catalog_entries_.size()); |
| 283 | DexRegisterMap dex_register_map( |
| 284 | dex_register_locations_region.Subregion(entry.offset, entry_size)); |
| 285 | *current_offset += entry_size; |
| 286 | // Fill in the map since it was just added. |
| 287 | FillInDexRegisterMap(dex_register_map, |
| 288 | entry.num_dex_registers, |
| 289 | *entry.live_dex_registers_mask, |
| 290 | entry.locations_start_index); |
| 291 | } |
| 292 | return entry.offset; |
| 293 | } |
| 294 | |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 295 | void StackMapStream::FillInMethodInfo(MemoryRegion region) { |
| 296 | { |
| 297 | MethodInfo info(region.begin(), method_indices_.size()); |
| 298 | for (size_t i = 0; i < method_indices_.size(); ++i) { |
| 299 | info.SetMethodIndex(i, method_indices_[i]); |
| 300 | } |
| 301 | } |
| 302 | if (kIsDebugBuild) { |
| 303 | // Check the data matches. |
| 304 | MethodInfo info(region.begin()); |
| 305 | const size_t count = info.NumMethodIndices(); |
| 306 | DCHECK_EQ(count, method_indices_.size()); |
| 307 | for (size_t i = 0; i < count; ++i) { |
| 308 | DCHECK_EQ(info.GetMethodIndex(i), method_indices_[i]); |
| 309 | } |
| 310 | } |
| 311 | } |
| 312 | |
| 313 | void StackMapStream::FillInCodeInfo(MemoryRegion region) { |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 314 | DCHECK_EQ(0u, current_entry_.dex_pc) << "EndStackMapEntry not called after BeginStackMapEntry"; |
| 315 | DCHECK_NE(0u, needed_size_) << "PrepareForFillIn not called before FillIn"; |
| 316 | |
Calin Juravle | 4f46ac5 | 2015-04-23 18:47:21 +0100 | [diff] [blame] | 317 | DCHECK_EQ(region.size(), needed_size_); |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 318 | |
| 319 | // Note that the memory region does not have to be zeroed when we JIT code |
| 320 | // because we do not use the arena allocator there. |
| 321 | |
| 322 | // Write the CodeInfo header. |
| 323 | region.CopyFrom(0, MemoryRegion(code_info_encoding_.data(), code_info_encoding_.size())); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 324 | |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 325 | CodeInfo code_info(region); |
| 326 | CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 327 | DCHECK_EQ(encoding.stack_map.num_entries, stack_maps_.size()); |
| 328 | |
| 329 | MemoryRegion dex_register_locations_region = region.Subregion( |
| 330 | encoding.dex_register_map.byte_offset, |
| 331 | encoding.dex_register_map.num_bytes); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 332 | |
| 333 | // Set the Dex register location catalog. |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 334 | MemoryRegion dex_register_location_catalog_region = region.Subregion( |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 335 | encoding.location_catalog.byte_offset, |
| 336 | encoding.location_catalog.num_bytes); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 337 | DexRegisterLocationCatalog dex_register_location_catalog(dex_register_location_catalog_region); |
| 338 | // Offset in `dex_register_location_catalog` where to store the next |
| 339 | // register location. |
| 340 | size_t location_catalog_offset = DexRegisterLocationCatalog::kFixedSize; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 341 | for (DexRegisterLocation dex_register_location : location_catalog_entries_) { |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 342 | dex_register_location_catalog.SetRegisterInfo(location_catalog_offset, dex_register_location); |
| 343 | location_catalog_offset += DexRegisterLocationCatalog::EntrySize(dex_register_location); |
| 344 | } |
| 345 | // Ensure we reached the end of the Dex registers location_catalog. |
| 346 | DCHECK_EQ(location_catalog_offset, dex_register_location_catalog_region.size()); |
| 347 | |
Vladimir Marko | f6a35de | 2016-03-21 12:01:50 +0000 | [diff] [blame] | 348 | ArenaBitVector empty_bitmask(allocator_, 0, /* expandable */ false, kArenaAllocStackMapStream); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 349 | uintptr_t next_dex_register_map_offset = 0; |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 350 | uintptr_t next_inline_info_index = 0; |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 351 | size_t invoke_info_idx = 0; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 352 | for (size_t i = 0, e = stack_maps_.size(); i < e; ++i) { |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 353 | StackMap stack_map = code_info.GetStackMapAt(i, encoding); |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 354 | StackMapEntry entry = stack_maps_[i]; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 355 | |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 356 | stack_map.SetDexPc(encoding.stack_map.encoding, entry.dex_pc); |
| 357 | stack_map.SetNativePcCodeOffset(encoding.stack_map.encoding, entry.native_pc_code_offset); |
| 358 | stack_map.SetRegisterMaskIndex(encoding.stack_map.encoding, entry.register_mask_index); |
| 359 | stack_map.SetStackMaskIndex(encoding.stack_map.encoding, entry.stack_mask_index); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 360 | |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 361 | size_t offset = MaybeCopyDexRegisterMap(dex_register_entries_[entry.dex_register_map_index], |
| 362 | &next_dex_register_map_offset, |
| 363 | dex_register_locations_region); |
| 364 | stack_map.SetDexRegisterMapOffset(encoding.stack_map.encoding, offset); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 365 | |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 366 | if (entry.dex_method_index != dex::kDexNoIndex) { |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 367 | InvokeInfo invoke_info(code_info.GetInvokeInfo(encoding, invoke_info_idx)); |
| 368 | invoke_info.SetNativePcCodeOffset(encoding.invoke_info.encoding, entry.native_pc_code_offset); |
| 369 | invoke_info.SetInvokeType(encoding.invoke_info.encoding, entry.invoke_type); |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 370 | invoke_info.SetMethodIndexIdx(encoding.invoke_info.encoding, entry.dex_method_index_idx); |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 371 | ++invoke_info_idx; |
| 372 | } |
| 373 | |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 374 | // Set the inlining info. |
| 375 | if (entry.inlining_depth != 0) { |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 376 | InlineInfo inline_info = code_info.GetInlineInfo(next_inline_info_index, encoding); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 377 | |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 378 | // Fill in the index. |
| 379 | stack_map.SetInlineInfoIndex(encoding.stack_map.encoding, next_inline_info_index); |
| 380 | DCHECK_EQ(next_inline_info_index, entry.inline_infos_start_index); |
| 381 | next_inline_info_index += entry.inlining_depth; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 382 | |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 383 | inline_info.SetDepth(encoding.inline_info.encoding, entry.inlining_depth); |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 384 | DCHECK_LE(entry.inline_infos_start_index + entry.inlining_depth, inline_infos_.size()); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 385 | |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 386 | for (size_t depth = 0; depth < entry.inlining_depth; ++depth) { |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 387 | InlineInfoEntry inline_entry = inline_infos_[depth + entry.inline_infos_start_index]; |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 388 | if (inline_entry.method != nullptr) { |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 389 | inline_info.SetMethodIndexIdxAtDepth( |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 390 | encoding.inline_info.encoding, |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 391 | depth, |
| 392 | High32Bits(reinterpret_cast<uintptr_t>(inline_entry.method))); |
| 393 | inline_info.SetExtraDataAtDepth( |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 394 | encoding.inline_info.encoding, |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 395 | depth, |
| 396 | Low32Bits(reinterpret_cast<uintptr_t>(inline_entry.method))); |
| 397 | } else { |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 398 | inline_info.SetMethodIndexIdxAtDepth(encoding.inline_info.encoding, |
| 399 | depth, |
| 400 | inline_entry.dex_method_index_idx); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 401 | inline_info.SetExtraDataAtDepth(encoding.inline_info.encoding, depth, 1); |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 402 | } |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 403 | inline_info.SetDexPcAtDepth(encoding.inline_info.encoding, depth, inline_entry.dex_pc); |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 404 | size_t dex_register_map_offset = MaybeCopyDexRegisterMap( |
| 405 | dex_register_entries_[inline_entry.dex_register_map_index], |
| 406 | &next_dex_register_map_offset, |
| 407 | dex_register_locations_region); |
| 408 | inline_info.SetDexRegisterMapOffsetAtDepth(encoding.inline_info.encoding, |
| 409 | depth, |
| 410 | dex_register_map_offset); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 411 | } |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 412 | } else if (encoding.stack_map.encoding.GetInlineInfoEncoding().BitSize() > 0) { |
| 413 | stack_map.SetInlineInfoIndex(encoding.stack_map.encoding, StackMap::kNoInlineInfo); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 414 | } |
| 415 | } |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 416 | |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 417 | // Write stack masks table. |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 418 | const size_t stack_mask_bits = encoding.stack_mask.encoding.BitSize(); |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 419 | if (stack_mask_bits > 0) { |
| 420 | size_t stack_mask_bytes = RoundUp(stack_mask_bits, kBitsPerByte) / kBitsPerByte; |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 421 | for (size_t i = 0; i < encoding.stack_mask.num_entries; ++i) { |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 422 | MemoryRegion source(&stack_masks_[i * stack_mask_bytes], stack_mask_bytes); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 423 | BitMemoryRegion stack_mask = code_info.GetStackMask(i, encoding); |
| 424 | for (size_t bit_index = 0; bit_index < stack_mask_bits; ++bit_index) { |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 425 | stack_mask.StoreBit(bit_index, source.LoadBit(bit_index)); |
| 426 | } |
| 427 | } |
| 428 | } |
| 429 | |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 430 | // Write register masks table. |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 431 | for (size_t i = 0; i < encoding.register_mask.num_entries; ++i) { |
| 432 | BitMemoryRegion register_mask = code_info.GetRegisterMask(i, encoding); |
| 433 | register_mask.StoreBits(0, register_masks_[i], encoding.register_mask.encoding.BitSize()); |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 434 | } |
| 435 | |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 436 | // Verify all written data in debug build. |
| 437 | if (kIsDebugBuild) { |
| 438 | CheckCodeInfo(region); |
| 439 | } |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 440 | } |
| 441 | |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 442 | void StackMapStream::FillInDexRegisterMap(DexRegisterMap dex_register_map, |
| 443 | uint32_t num_dex_registers, |
| 444 | const BitVector& live_dex_registers_mask, |
| 445 | uint32_t start_index_in_dex_register_locations) const { |
| 446 | dex_register_map.SetLiveBitMask(num_dex_registers, live_dex_registers_mask); |
| 447 | // Set the dex register location mapping data. |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 448 | size_t number_of_live_dex_registers = live_dex_registers_mask.NumSetBits(); |
| 449 | DCHECK_LE(number_of_live_dex_registers, dex_register_locations_.size()); |
| 450 | DCHECK_LE(start_index_in_dex_register_locations, |
| 451 | dex_register_locations_.size() - number_of_live_dex_registers); |
| 452 | for (size_t index_in_dex_register_locations = 0; |
| 453 | index_in_dex_register_locations != number_of_live_dex_registers; |
| 454 | ++index_in_dex_register_locations) { |
| 455 | size_t location_catalog_entry_index = dex_register_locations_[ |
| 456 | start_index_in_dex_register_locations + index_in_dex_register_locations]; |
| 457 | dex_register_map.SetLocationCatalogEntryIndex( |
| 458 | index_in_dex_register_locations, |
| 459 | location_catalog_entry_index, |
| 460 | num_dex_registers, |
| 461 | location_catalog_entries_.size()); |
Nicolas Geoffray | b1d0f3f | 2015-05-14 12:41:51 +0100 | [diff] [blame] | 462 | } |
| 463 | } |
| 464 | |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 465 | size_t StackMapStream::AddDexRegisterMapEntry(const DexRegisterMapEntry& entry) { |
| 466 | const size_t current_entry_index = dex_register_entries_.size(); |
| 467 | auto entries_it = dex_map_hash_to_stack_map_indices_.find(entry.hash); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 468 | if (entries_it == dex_map_hash_to_stack_map_indices_.end()) { |
| 469 | // We don't have a perfect hash functions so we need a list to collect all stack maps |
| 470 | // which might have the same dex register map. |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 471 | ArenaVector<uint32_t> stack_map_indices(allocator_->Adapter(kArenaAllocStackMapStream)); |
| 472 | stack_map_indices.push_back(current_entry_index); |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 473 | dex_map_hash_to_stack_map_indices_.Put(entry.hash, std::move(stack_map_indices)); |
| 474 | } else { |
| 475 | // We might have collisions, so we need to check whether or not we really have a match. |
| 476 | for (uint32_t test_entry_index : entries_it->second) { |
| 477 | if (DexRegisterMapEntryEquals(dex_register_entries_[test_entry_index], entry)) { |
| 478 | return test_entry_index; |
| 479 | } |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 480 | } |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 481 | entries_it->second.push_back(current_entry_index); |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 482 | } |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 483 | dex_register_entries_.push_back(entry); |
| 484 | return current_entry_index; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 485 | } |
| 486 | |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 487 | bool StackMapStream::DexRegisterMapEntryEquals(const DexRegisterMapEntry& a, |
| 488 | const DexRegisterMapEntry& b) const { |
| 489 | if ((a.live_dex_registers_mask == nullptr) != (b.live_dex_registers_mask == nullptr)) { |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 490 | return false; |
| 491 | } |
| 492 | if (a.num_dex_registers != b.num_dex_registers) { |
| 493 | return false; |
| 494 | } |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 495 | if (a.num_dex_registers != 0u) { |
| 496 | DCHECK(a.live_dex_registers_mask != nullptr); |
| 497 | DCHECK(b.live_dex_registers_mask != nullptr); |
| 498 | if (!a.live_dex_registers_mask->Equal(b.live_dex_registers_mask)) { |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 499 | return false; |
| 500 | } |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 501 | size_t number_of_live_dex_registers = a.live_dex_registers_mask->NumSetBits(); |
| 502 | DCHECK_LE(number_of_live_dex_registers, dex_register_locations_.size()); |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 503 | DCHECK_LE(a.locations_start_index, |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 504 | dex_register_locations_.size() - number_of_live_dex_registers); |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 505 | DCHECK_LE(b.locations_start_index, |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 506 | dex_register_locations_.size() - number_of_live_dex_registers); |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 507 | auto a_begin = dex_register_locations_.begin() + a.locations_start_index; |
| 508 | auto b_begin = dex_register_locations_.begin() + b.locations_start_index; |
Vladimir Marko | 225b646 | 2015-09-28 12:17:40 +0100 | [diff] [blame] | 509 | if (!std::equal(a_begin, a_begin + number_of_live_dex_registers, b_begin)) { |
| 510 | return false; |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 511 | } |
| 512 | } |
| 513 | return true; |
| 514 | } |
| 515 | |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 516 | // Helper for CheckCodeInfo - check that register map has the expected content. |
| 517 | void StackMapStream::CheckDexRegisterMap(const CodeInfo& code_info, |
| 518 | const DexRegisterMap& dex_register_map, |
| 519 | size_t num_dex_registers, |
| 520 | BitVector* live_dex_registers_mask, |
| 521 | size_t dex_register_locations_index) const { |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 522 | CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 523 | for (size_t reg = 0; reg < num_dex_registers; reg++) { |
| 524 | // Find the location we tried to encode. |
| 525 | DexRegisterLocation expected = DexRegisterLocation::None(); |
| 526 | if (live_dex_registers_mask->IsBitSet(reg)) { |
| 527 | size_t catalog_index = dex_register_locations_[dex_register_locations_index++]; |
| 528 | expected = location_catalog_entries_[catalog_index]; |
| 529 | } |
| 530 | // Compare to the seen location. |
| 531 | if (expected.GetKind() == DexRegisterLocation::Kind::kNone) { |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 532 | DCHECK(!dex_register_map.IsValid() || !dex_register_map.IsDexRegisterLive(reg)) |
| 533 | << dex_register_map.IsValid() << " " << dex_register_map.IsDexRegisterLive(reg); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 534 | } else { |
| 535 | DCHECK(dex_register_map.IsDexRegisterLive(reg)); |
| 536 | DexRegisterLocation seen = dex_register_map.GetDexRegisterLocation( |
| 537 | reg, num_dex_registers, code_info, encoding); |
| 538 | DCHECK_EQ(expected.GetKind(), seen.GetKind()); |
| 539 | DCHECK_EQ(expected.GetValue(), seen.GetValue()); |
| 540 | } |
| 541 | } |
| 542 | if (num_dex_registers == 0) { |
| 543 | DCHECK(!dex_register_map.IsValid()); |
| 544 | } |
| 545 | } |
| 546 | |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 547 | size_t StackMapStream::PrepareRegisterMasks() { |
| 548 | register_masks_.resize(stack_maps_.size(), 0u); |
Vladimir Marko | 9c57113 | 2017-02-22 11:59:57 +0000 | [diff] [blame] | 549 | ArenaUnorderedMap<uint32_t, size_t> dedupe(allocator_->Adapter(kArenaAllocStackMapStream)); |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 550 | for (StackMapEntry& stack_map : stack_maps_) { |
| 551 | const size_t index = dedupe.size(); |
| 552 | stack_map.register_mask_index = dedupe.emplace(stack_map.register_mask, index).first->second; |
| 553 | register_masks_[index] = stack_map.register_mask; |
| 554 | } |
| 555 | return dedupe.size(); |
| 556 | } |
| 557 | |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 558 | void StackMapStream::PrepareMethodIndices() { |
| 559 | CHECK(method_indices_.empty()); |
| 560 | method_indices_.resize(stack_maps_.size() + inline_infos_.size()); |
| 561 | ArenaUnorderedMap<uint32_t, size_t> dedupe(allocator_->Adapter(kArenaAllocStackMapStream)); |
| 562 | for (StackMapEntry& stack_map : stack_maps_) { |
| 563 | const size_t index = dedupe.size(); |
| 564 | const uint32_t method_index = stack_map.dex_method_index; |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 565 | if (method_index != dex::kDexNoIndex) { |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 566 | stack_map.dex_method_index_idx = dedupe.emplace(method_index, index).first->second; |
| 567 | method_indices_[index] = method_index; |
| 568 | } |
| 569 | } |
| 570 | for (InlineInfoEntry& inline_info : inline_infos_) { |
| 571 | const size_t index = dedupe.size(); |
| 572 | const uint32_t method_index = inline_info.method_index; |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 573 | CHECK_NE(method_index, dex::kDexNoIndex); |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 574 | inline_info.dex_method_index_idx = dedupe.emplace(method_index, index).first->second; |
| 575 | method_indices_[index] = method_index; |
| 576 | } |
| 577 | method_indices_.resize(dedupe.size()); |
| 578 | } |
| 579 | |
| 580 | |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 581 | size_t StackMapStream::PrepareStackMasks(size_t entry_size_in_bits) { |
| 582 | // Preallocate memory since we do not want it to move (the dedup map will point into it). |
| 583 | const size_t byte_entry_size = RoundUp(entry_size_in_bits, kBitsPerByte) / kBitsPerByte; |
| 584 | stack_masks_.resize(byte_entry_size * stack_maps_.size(), 0u); |
| 585 | // For deduplicating we store the stack masks as byte packed for simplicity. We can bit pack later |
| 586 | // when copying out from stack_masks_. |
Vladimir Marko | 9c57113 | 2017-02-22 11:59:57 +0000 | [diff] [blame] | 587 | ArenaUnorderedMap<MemoryRegion, |
| 588 | size_t, |
| 589 | FNVHash<MemoryRegion>, |
| 590 | MemoryRegion::ContentEquals> dedup( |
| 591 | stack_maps_.size(), allocator_->Adapter(kArenaAllocStackMapStream)); |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 592 | for (StackMapEntry& stack_map : stack_maps_) { |
| 593 | size_t index = dedup.size(); |
| 594 | MemoryRegion stack_mask(stack_masks_.data() + index * byte_entry_size, byte_entry_size); |
| 595 | for (size_t i = 0; i < entry_size_in_bits; i++) { |
| 596 | stack_mask.StoreBit(i, stack_map.sp_mask != nullptr && stack_map.sp_mask->IsBitSet(i)); |
| 597 | } |
| 598 | stack_map.stack_mask_index = dedup.emplace(stack_mask, index).first->second; |
| 599 | } |
| 600 | return dedup.size(); |
| 601 | } |
| 602 | |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 603 | // Check that all StackMapStream inputs are correctly encoded by trying to read them back. |
| 604 | void StackMapStream::CheckCodeInfo(MemoryRegion region) const { |
| 605 | CodeInfo code_info(region); |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 606 | CodeInfoEncoding encoding = code_info.ExtractEncoding(); |
| 607 | DCHECK_EQ(code_info.GetNumberOfStackMaps(encoding), stack_maps_.size()); |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 608 | size_t invoke_info_index = 0; |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 609 | for (size_t s = 0; s < stack_maps_.size(); ++s) { |
| 610 | const StackMap stack_map = code_info.GetStackMapAt(s, encoding); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 611 | const StackMapEncoding& stack_map_encoding = encoding.stack_map.encoding; |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 612 | StackMapEntry entry = stack_maps_[s]; |
| 613 | |
| 614 | // Check main stack map fields. |
Mathieu Chartier | a2f526f | 2017-01-19 14:48:48 -0800 | [diff] [blame] | 615 | DCHECK_EQ(stack_map.GetNativePcOffset(stack_map_encoding, instruction_set_), |
| 616 | entry.native_pc_code_offset.Uint32Value(instruction_set_)); |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 617 | DCHECK_EQ(stack_map.GetDexPc(stack_map_encoding), entry.dex_pc); |
Mathieu Chartier | 1a20b68 | 2017-01-31 14:25:16 -0800 | [diff] [blame] | 618 | DCHECK_EQ(stack_map.GetRegisterMaskIndex(stack_map_encoding), entry.register_mask_index); |
| 619 | DCHECK_EQ(code_info.GetRegisterMaskOf(encoding, stack_map), entry.register_mask); |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 620 | const size_t num_stack_mask_bits = code_info.GetNumberOfStackMaskBits(encoding); |
| 621 | DCHECK_EQ(stack_map.GetStackMaskIndex(stack_map_encoding), entry.stack_mask_index); |
| 622 | BitMemoryRegion stack_mask = code_info.GetStackMaskOf(encoding, stack_map); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 623 | if (entry.sp_mask != nullptr) { |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 624 | DCHECK_GE(stack_mask.size_in_bits(), entry.sp_mask->GetNumberOfBits()); |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 625 | for (size_t b = 0; b < num_stack_mask_bits; b++) { |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 626 | DCHECK_EQ(stack_mask.LoadBit(b), entry.sp_mask->IsBitSet(b)); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 627 | } |
| 628 | } else { |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 629 | for (size_t b = 0; b < num_stack_mask_bits; b++) { |
David Srbecky | 45aa598 | 2016-03-18 02:15:09 +0000 | [diff] [blame] | 630 | DCHECK_EQ(stack_mask.LoadBit(b), 0u); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 631 | } |
| 632 | } |
Andreas Gampe | e2abbc6 | 2017-09-15 11:59:26 -0700 | [diff] [blame] | 633 | if (entry.dex_method_index != dex::kDexNoIndex) { |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 634 | InvokeInfo invoke_info = code_info.GetInvokeInfo(encoding, invoke_info_index); |
| 635 | DCHECK_EQ(invoke_info.GetNativePcOffset(encoding.invoke_info.encoding, instruction_set_), |
| 636 | entry.native_pc_code_offset.Uint32Value(instruction_set_)); |
| 637 | DCHECK_EQ(invoke_info.GetInvokeType(encoding.invoke_info.encoding), entry.invoke_type); |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 638 | DCHECK_EQ(invoke_info.GetMethodIndexIdx(encoding.invoke_info.encoding), |
| 639 | entry.dex_method_index_idx); |
Mathieu Chartier | d776ff0 | 2017-01-17 09:32:18 -0800 | [diff] [blame] | 640 | invoke_info_index++; |
| 641 | } |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 642 | CheckDexRegisterMap(code_info, |
| 643 | code_info.GetDexRegisterMapOf( |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 644 | stack_map, encoding, entry.dex_register_entry.num_dex_registers), |
| 645 | entry.dex_register_entry.num_dex_registers, |
| 646 | entry.dex_register_entry.live_dex_registers_mask, |
| 647 | entry.dex_register_entry.locations_start_index); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 648 | |
| 649 | // Check inline info. |
David Srbecky | 09ed098 | 2016-02-12 21:58:43 +0000 | [diff] [blame] | 650 | DCHECK_EQ(stack_map.HasInlineInfo(stack_map_encoding), (entry.inlining_depth != 0)); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 651 | if (entry.inlining_depth != 0) { |
| 652 | InlineInfo inline_info = code_info.GetInlineInfoOf(stack_map, encoding); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 653 | DCHECK_EQ(inline_info.GetDepth(encoding.inline_info.encoding), entry.inlining_depth); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 654 | for (size_t d = 0; d < entry.inlining_depth; ++d) { |
| 655 | size_t inline_info_index = entry.inline_infos_start_index + d; |
| 656 | DCHECK_LT(inline_info_index, inline_infos_.size()); |
| 657 | InlineInfoEntry inline_entry = inline_infos_[inline_info_index]; |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 658 | DCHECK_EQ(inline_info.GetDexPcAtDepth(encoding.inline_info.encoding, d), |
David Srbecky | 61b28a1 | 2016-02-25 21:55:03 +0000 | [diff] [blame] | 659 | inline_entry.dex_pc); |
Mathieu Chartier | 575d3e6 | 2017-02-06 11:00:40 -0800 | [diff] [blame] | 660 | if (inline_info.EncodesArtMethodAtDepth(encoding.inline_info.encoding, d)) { |
| 661 | DCHECK_EQ(inline_info.GetArtMethodAtDepth(encoding.inline_info.encoding, d), |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 662 | inline_entry.method); |
| 663 | } else { |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 664 | const size_t method_index_idx = |
| 665 | inline_info.GetMethodIndexIdxAtDepth(encoding.inline_info.encoding, d); |
| 666 | DCHECK_EQ(method_index_idx, inline_entry.dex_method_index_idx); |
| 667 | DCHECK_EQ(method_indices_[method_index_idx], inline_entry.method_index); |
Nicolas Geoffray | 5d37c15 | 2017-01-12 13:25:19 +0000 | [diff] [blame] | 668 | } |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 669 | |
| 670 | CheckDexRegisterMap(code_info, |
| 671 | code_info.GetDexRegisterMapAtDepth( |
Mathieu Chartier | 3228908 | 2017-02-09 15:57:37 -0800 | [diff] [blame] | 672 | d, |
| 673 | inline_info, |
| 674 | encoding, |
| 675 | inline_entry.dex_register_entry.num_dex_registers), |
| 676 | inline_entry.dex_register_entry.num_dex_registers, |
| 677 | inline_entry.dex_register_entry.live_dex_registers_mask, |
| 678 | inline_entry.dex_register_entry.locations_start_index); |
David Srbecky | 1bbdfd7 | 2016-02-24 16:39:26 +0000 | [diff] [blame] | 679 | } |
| 680 | } |
| 681 | } |
| 682 | } |
| 683 | |
Mathieu Chartier | cbcedbf | 2017-03-12 22:24:50 -0700 | [diff] [blame] | 684 | size_t StackMapStream::ComputeMethodInfoSize() const { |
| 685 | DCHECK_NE(0u, needed_size_) << "PrepareForFillIn not called before " << __FUNCTION__; |
| 686 | return MethodInfo::ComputeSize(method_indices_.size()); |
| 687 | } |
| 688 | |
Calin Juravle | c416d33 | 2015-04-23 16:01:43 +0100 | [diff] [blame] | 689 | } // namespace art |