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/*
* Copyright (C) 2014 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.
*/
#ifndef ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_
#define ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_
#include "arch/context.h"
#include "base/logging.h"
#include "registers_arm64.h"
namespace art {
namespace arm64 {
class Arm64Context : public Context {
public:
Arm64Context() {
Reset();
}
~Arm64Context() {}
void Reset();
void FillCalleeSaves(const StackVisitor& fr);
void SetSP(uintptr_t new_sp) {
SetGPR(SP, new_sp);
}
void SetPC(uintptr_t new_lr) {
SetGPR(LR, new_lr);
}
virtual uintptr_t* GetGPRAddress(uint32_t reg) {
DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfCoreRegisters));
return gprs_[reg];
}
uintptr_t GetGPR(uint32_t reg) {
DCHECK_LT(reg, static_cast<uint32_t>(kNumberOfCoreRegisters));
return *gprs_[reg];
}
void SetGPR(uint32_t reg, uintptr_t value);
void SmashCallerSaves();
void DoLongJump();
private:
// Pointers to register locations, initialized to NULL or the specific registers below.
uintptr_t* gprs_[kNumberOfCoreRegisters];
uint64_t * fprs_[kNumberOfDRegisters];
// Hold values for sp and pc if they are not located within a stack frame.
uintptr_t sp_, pc_;
};
} // namespace arm64
} // namespace art
#endif // ART_RUNTIME_ARCH_ARM64_CONTEXT_ARM64_H_
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