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 */ 16 17#include "simulator/code_simulator_arm64.h" 18 19namespace art { 20namespace arm64 { 21 22// VIXL has not been tested on 32bit architectures, so vixl::Simulator is not always 23// available. To avoid linker error on these architectures, we check if we can simulate 24// in the beginning of following methods, with compile time constant `kCanSimulate`. 25// TODO: when vixl::Simulator is always available, remove the these checks. 26 27CodeSimulatorArm64* CodeSimulatorArm64::CreateCodeSimulatorArm64() { 28 if (kCanSimulate) { 29 return new CodeSimulatorArm64(); 30 } else { 31 return nullptr; 32 } 33} 34 35CodeSimulatorArm64::CodeSimulatorArm64() 36 : CodeSimulator(), decoder_(nullptr), simulator_(nullptr) { 37 DCHECK(kCanSimulate); 38 decoder_ = new vixl::Decoder(); 39 simulator_ = new vixl::Simulator(decoder_); 40} 41 42CodeSimulatorArm64::~CodeSimulatorArm64() { 43 DCHECK(kCanSimulate); 44 delete simulator_; 45 delete decoder_; 46} 47 48void CodeSimulatorArm64::RunFrom(intptr_t code_buffer) { 49 DCHECK(kCanSimulate); 50 simulator_->RunFrom(reinterpret_cast<const vixl::Instruction*>(code_buffer)); 51} 52 53bool CodeSimulatorArm64::GetCReturnBool() const { 54 DCHECK(kCanSimulate); 55 return simulator_->wreg(0); 56} 57 58int32_t CodeSimulatorArm64::GetCReturnInt32() const { 59 DCHECK(kCanSimulate); 60 return simulator_->wreg(0); 61} 62 63int64_t CodeSimulatorArm64::GetCReturnInt64() const { 64 DCHECK(kCanSimulate); 65 return simulator_->xreg(0); 66} 67 68} // namespace arm64 69} // namespace art 70