Vladimir Marko | 944da60 | 2016-02-19 12:27:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "multi_oat_relative_patcher.h" |
| 18 | |
Andreas Gampe | 5794381 | 2017-12-06 21:39:13 -0800 | [diff] [blame] | 19 | #include <android-base/logging.h> |
| 20 | |
Vladimir Marko | 944da60 | 2016-02-19 12:27:55 +0000 | [diff] [blame] | 21 | #include "base/bit_utils.h" |
Andreas Gampe | 8cf9cb3 | 2017-07-19 09:28:38 -0700 | [diff] [blame] | 22 | #include "globals.h" |
Vladimir Marko | ca1e038 | 2018-04-11 09:58:41 +0000 | [diff] [blame] | 23 | #include "driver/compiled_method_storage.h" |
Vladimir Marko | 944da60 | 2016-02-19 12:27:55 +0000 | [diff] [blame] | 24 | |
| 25 | namespace art { |
| 26 | namespace linker { |
| 27 | |
Vladimir Marko | ca1e038 | 2018-04-11 09:58:41 +0000 | [diff] [blame] | 28 | void MultiOatRelativePatcher::ThunkProvider::GetThunkCode(const LinkerPatch& patch, |
| 29 | /*out*/ ArrayRef<const uint8_t>* code, |
| 30 | /*out*/ std::string* debug_name) { |
| 31 | *code = storage_->GetThunkCode(patch, debug_name); |
| 32 | DCHECK(!code->empty()); |
| 33 | } |
| 34 | |
| 35 | |
Vladimir Marko | 944da60 | 2016-02-19 12:27:55 +0000 | [diff] [blame] | 36 | MultiOatRelativePatcher::MultiOatRelativePatcher(InstructionSet instruction_set, |
Vladimir Marko | ca1e038 | 2018-04-11 09:58:41 +0000 | [diff] [blame] | 37 | const InstructionSetFeatures* features, |
| 38 | CompiledMethodStorage* storage) |
| 39 | : thunk_provider_(storage), |
| 40 | method_offset_map_(), |
| 41 | relative_patcher_(RelativePatcher::Create(instruction_set, |
| 42 | features, |
| 43 | &thunk_provider_, |
| 44 | &method_offset_map_)), |
Vladimir Marko | 944da60 | 2016-02-19 12:27:55 +0000 | [diff] [blame] | 45 | adjustment_(0u), |
| 46 | instruction_set_(instruction_set), |
| 47 | start_size_code_alignment_(0u), |
| 48 | start_size_relative_call_thunks_(0u), |
| 49 | start_size_misc_thunks_(0u) { |
| 50 | } |
| 51 | |
| 52 | void MultiOatRelativePatcher::StartOatFile(uint32_t adjustment) { |
| 53 | DCHECK_ALIGNED(adjustment, kPageSize); |
| 54 | adjustment_ = adjustment; |
| 55 | |
| 56 | start_size_code_alignment_ = relative_patcher_->CodeAlignmentSize(); |
| 57 | start_size_relative_call_thunks_ = relative_patcher_->RelativeCallThunksSize(); |
| 58 | start_size_misc_thunks_ = relative_patcher_->MiscThunksSize(); |
| 59 | } |
| 60 | |
| 61 | uint32_t MultiOatRelativePatcher::CodeAlignmentSize() const { |
| 62 | DCHECK_GE(relative_patcher_->CodeAlignmentSize(), start_size_code_alignment_); |
| 63 | return relative_patcher_->CodeAlignmentSize() - start_size_code_alignment_; |
| 64 | } |
| 65 | |
| 66 | uint32_t MultiOatRelativePatcher::RelativeCallThunksSize() const { |
| 67 | DCHECK_GE(relative_patcher_->RelativeCallThunksSize(), start_size_relative_call_thunks_); |
| 68 | return relative_patcher_->RelativeCallThunksSize() - start_size_relative_call_thunks_; |
| 69 | } |
| 70 | |
| 71 | uint32_t MultiOatRelativePatcher::MiscThunksSize() const { |
| 72 | DCHECK_GE(relative_patcher_->MiscThunksSize(), start_size_misc_thunks_); |
| 73 | return relative_patcher_->MiscThunksSize() - start_size_misc_thunks_; |
| 74 | } |
| 75 | |
| 76 | std::pair<bool, uint32_t> MultiOatRelativePatcher::MethodOffsetMap::FindMethodOffset( |
| 77 | MethodReference ref) { |
| 78 | auto it = map.find(ref); |
| 79 | if (it == map.end()) { |
| 80 | return std::pair<bool, uint32_t>(false, 0u); |
| 81 | } else { |
| 82 | return std::pair<bool, uint32_t>(true, it->second); |
| 83 | } |
| 84 | } |
| 85 | } // namespace linker |
| 86 | } // namespace art |