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// Copyright 2011 Google Inc. All Rights Reserved.
#ifndef ART_SRC_CALLING_CONVENTION_ARM_H_
#define ART_SRC_CALLING_CONVENTION_ARM_H_
#include "calling_convention.h"
namespace art {
namespace arm {
class ArmManagedRuntimeCallingConvention : public ManagedRuntimeCallingConvention {
public:
ArmManagedRuntimeCallingConvention(bool is_static, bool is_synchronized, const char* shorty) :
ManagedRuntimeCallingConvention(is_static, is_synchronized, shorty) {}
virtual ~ArmManagedRuntimeCallingConvention() {}
// Calling convention
virtual ManagedRegister ReturnRegister();
virtual ManagedRegister InterproceduralScratchRegister();
// Managed runtime calling convention
virtual ManagedRegister MethodRegister();
virtual bool IsCurrentParamInRegister();
virtual bool IsCurrentParamOnStack();
virtual ManagedRegister CurrentParamRegister();
virtual FrameOffset CurrentParamStackOffset();
private:
DISALLOW_COPY_AND_ASSIGN(ArmManagedRuntimeCallingConvention);
};
class ArmJniCallingConvention : public JniCallingConvention {
public:
explicit ArmJniCallingConvention(bool is_static, bool is_synchronized, const char* shorty);
virtual ~ArmJniCallingConvention() {}
// Calling convention
virtual ManagedRegister ReturnRegister();
virtual ManagedRegister InterproceduralScratchRegister();
// JNI calling convention
virtual void Next(); // Override default behavior for AAPCS
virtual size_t FrameSize();
virtual size_t OutArgSize();
virtual const std::vector<ManagedRegister>& CalleeSaveRegisters() const {
return callee_save_regs_;
}
virtual ManagedRegister ReturnScratchRegister() const;
virtual uint32_t CoreSpillMask() const;
virtual uint32_t FpSpillMask() const {
return 0; // Floats aren't spilled in JNI down call
}
virtual bool IsMethodRegisterClobberedPreCall();
virtual bool IsCurrentParamInRegister();
virtual bool IsCurrentParamOnStack();
virtual ManagedRegister CurrentParamRegister();
virtual FrameOffset CurrentParamStackOffset();
protected:
virtual size_t NumberOfOutgoingStackArgs();
private:
// TODO: these values aren't unique and can be shared amongst instances
std::vector<ManagedRegister> callee_save_regs_;
// Padding to ensure longs and doubles are not split in AAPCS
size_t padding_;
DISALLOW_COPY_AND_ASSIGN(ArmJniCallingConvention);
};
} // namespace arm
} // namespace art
#endif // ART_SRC_CALLING_CONVENTION_ARM_H_