/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "code_simulator_arm64.h"
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#include <android-base/logging.h>
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using namespace vixl::aarch64; // NOLINT(build/namespaces)
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namespace art {
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namespace arm64 {
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// VIXL has not been tested on 32bit architectures, so Simulator is not always
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// available. To avoid linker error on these architectures, we check if we can simulate
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// in the beginning of following methods, with compile time constant `kCanSimulate`.
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// TODO: when Simulator is always available, remove the these checks.
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CodeSimulatorArm64* CodeSimulatorArm64::CreateCodeSimulatorArm64() {
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if (kCanSimulate) {
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return new CodeSimulatorArm64();
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} else {
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return nullptr;
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}
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}
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CodeSimulatorArm64::CodeSimulatorArm64()
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: CodeSimulator(), decoder_(nullptr), simulator_(nullptr) {
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DCHECK(kCanSimulate);
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decoder_ = new Decoder();
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simulator_ = new Simulator(decoder_);
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}
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CodeSimulatorArm64::~CodeSimulatorArm64() {
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DCHECK(kCanSimulate);
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delete simulator_;
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delete decoder_;
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}
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void CodeSimulatorArm64::RunFrom(intptr_t code_buffer) {
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DCHECK(kCanSimulate);
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simulator_->RunFrom(reinterpret_cast<const Instruction*>(code_buffer));
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}
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bool CodeSimulatorArm64::GetCReturnBool() const {
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DCHECK(kCanSimulate);
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return simulator_->ReadWRegister(0);
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}
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int32_t CodeSimulatorArm64::GetCReturnInt32() const {
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DCHECK(kCanSimulate);
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return simulator_->ReadWRegister(0);
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}
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int64_t CodeSimulatorArm64::GetCReturnInt64() const {
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DCHECK(kCanSimulate);
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return simulator_->ReadXRegister(0);
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}
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} // namespace arm64
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} // namespace art
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