| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "simulator/code_simulator_arm64.h" |
| |
| namespace art { |
| namespace arm64 { |
| |
| // VIXL has not been tested on 32bit arches, so vixl::Simulator is not always |
| // available. To avoid linker error on these arches, an early return is added in |
| // each of the following methods, when vixl::Simulator is not available. |
| // TODO: when vixl::Simulator is always available, remove the early returns. |
| |
| CodeSimulatorArm64::CodeSimulatorArm64() |
| : decoder_(nullptr), simulator_(nullptr) { |
| DCHECK(kCanSimulate); |
| if (!kCanSimulate) { |
| return; |
| } |
| decoder_ = new vixl::Decoder(); |
| simulator_ = new vixl::Simulator(decoder_); |
| } |
| |
| CodeSimulatorArm64::~CodeSimulatorArm64() { |
| if (!kCanSimulate) { |
| return; |
| } |
| delete simulator_; |
| delete decoder_; |
| } |
| |
| void CodeSimulatorArm64::RunFrom(intptr_t code_buffer) { |
| if (!kCanSimulate) { |
| return; |
| } |
| simulator_->RunFrom(reinterpret_cast<const vixl::Instruction*>(code_buffer)); |
| } |
| |
| bool CodeSimulatorArm64::GetCReturnBool() { |
| DCHECK(kCanSimulate); |
| return simulator_->wreg(0); |
| } |
| |
| int32_t CodeSimulatorArm64::GetCReturnInt32() { |
| DCHECK(kCanSimulate); |
| return simulator_->wreg(0); |
| } |
| |
| int64_t CodeSimulatorArm64::GetCReturnInt64() { |
| DCHECK(kCanSimulate); |
| return simulator_->xreg(0); |
| } |
| |
| } // namespace arm64 |
| } // namespace art |