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/*
* Copyright (c) 2010, 2012-2013, 2017-2018 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __ARCH_ARM_INSTS_MISC_HH__
#define __ARCH_ARM_INSTS_MISC_HH__
#include "arch/arm/insts/pred_inst.hh"
class MrsOp : public PredOp
{
protected:
IntRegIndex dest;
MrsOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest) :
PredOp(mnem, _machInst, __opClass), dest(_dest)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class MsrBase : public PredOp
{
protected:
uint8_t byteMask;
MsrBase(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
uint8_t _byteMask) :
PredOp(mnem, _machInst, __opClass), byteMask(_byteMask)
{}
void printMsrBase(std::ostream &os) const;
};
class MsrImmOp : public MsrBase
{
protected:
uint32_t imm;
MsrImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
uint32_t _imm, uint8_t _byteMask) :
MsrBase(mnem, _machInst, __opClass, _byteMask), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class MsrRegOp : public MsrBase
{
protected:
IntRegIndex op1;
MsrRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _op1, uint8_t _byteMask) :
MsrBase(mnem, _machInst, __opClass, _byteMask), op1(_op1)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class MrrcOp : public PredOp
{
protected:
MiscRegIndex op1;
IntRegIndex dest;
IntRegIndex dest2;
uint32_t imm;
MrrcOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
MiscRegIndex _op1, IntRegIndex _dest, IntRegIndex _dest2,
uint32_t _imm) :
PredOp(mnem, _machInst, __opClass), op1(_op1), dest(_dest),
dest2(_dest2), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class McrrOp : public PredOp
{
protected:
IntRegIndex op1;
IntRegIndex op2;
MiscRegIndex dest;
uint32_t imm;
McrrOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _op1, IntRegIndex _op2, MiscRegIndex _dest,
uint32_t _imm) :
PredOp(mnem, _machInst, __opClass), op1(_op1), op2(_op2),
dest(_dest), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class ImmOp : public PredOp
{
protected:
uint64_t imm;
ImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
uint64_t _imm) :
PredOp(mnem, _machInst, __opClass), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegImmOp : public PredOp
{
protected:
IntRegIndex dest;
uint64_t imm;
RegImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, uint64_t _imm) :
PredOp(mnem, _machInst, __opClass), dest(_dest), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegRegOp : public PredOp
{
protected:
IntRegIndex dest;
IntRegIndex op1;
RegRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1) :
PredOp(mnem, _machInst, __opClass), dest(_dest), op1(_op1)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegOp : public PredOp
{
protected:
IntRegIndex dest;
RegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest) :
PredOp(mnem, _machInst, __opClass), dest(_dest)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegImmRegOp : public PredOp
{
protected:
IntRegIndex dest;
uint64_t imm;
IntRegIndex op1;
RegImmRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, uint64_t _imm, IntRegIndex _op1) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), imm(_imm), op1(_op1)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegRegRegImmOp : public PredOp
{
protected:
IntRegIndex dest;
IntRegIndex op1;
IntRegIndex op2;
uint64_t imm;
RegRegRegImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2,
uint64_t _imm) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), op2(_op2), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegRegRegRegOp : public PredOp
{
protected:
IntRegIndex dest;
IntRegIndex op1;
IntRegIndex op2;
IntRegIndex op3;
RegRegRegRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1,
IntRegIndex _op2, IntRegIndex _op3) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), op2(_op2), op3(_op3)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegRegRegOp : public PredOp
{
protected:
IntRegIndex dest;
IntRegIndex op1;
IntRegIndex op2;
RegRegRegOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1, IntRegIndex _op2) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), op2(_op2)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegRegImmOp : public PredOp
{
protected:
IntRegIndex dest;
IntRegIndex op1;
uint64_t imm;
RegRegImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1,
uint64_t _imm) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class MiscRegRegImmOp : public PredOp
{
protected:
MiscRegIndex dest;
IntRegIndex op1;
uint64_t imm;
MiscRegRegImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
MiscRegIndex _dest, IntRegIndex _op1,
uint64_t _imm) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegMiscRegImmOp : public PredOp
{
protected:
IntRegIndex dest;
MiscRegIndex op1;
uint64_t imm;
RegMiscRegImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, MiscRegIndex _op1,
uint64_t _imm) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), imm(_imm)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegImmImmOp : public PredOp
{
protected:
IntRegIndex dest;
uint64_t imm1;
uint64_t imm2;
RegImmImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, uint64_t _imm1, uint64_t _imm2) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), imm1(_imm1), imm2(_imm2)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegRegImmImmOp : public PredOp
{
protected:
IntRegIndex dest;
IntRegIndex op1;
uint64_t imm1;
uint64_t imm2;
RegRegImmImmOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, IntRegIndex _op1,
uint64_t _imm1, uint64_t _imm2) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), op1(_op1), imm1(_imm1), imm2(_imm2)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class RegImmRegShiftOp : public PredOp
{
protected:
IntRegIndex dest;
uint64_t imm;
IntRegIndex op1;
int32_t shiftAmt;
ArmShiftType shiftType;
RegImmRegShiftOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass,
IntRegIndex _dest, uint64_t _imm, IntRegIndex _op1,
int32_t _shiftAmt, ArmShiftType _shiftType) :
PredOp(mnem, _machInst, __opClass),
dest(_dest), imm(_imm), op1(_op1),
shiftAmt(_shiftAmt), shiftType(_shiftType)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
class UnknownOp : public PredOp
{
protected:
UnknownOp(const char *mnem, ExtMachInst _machInst, OpClass __opClass) :
PredOp(mnem, _machInst, __opClass)
{}
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
/**
* Certain mrc/mcr instructions act as nops or flush the pipe based on what
* register the instruction is trying to access. This inst/class exists so that
* we can still check for hyp traps, as the normal nop instruction
* does not.
*/
class McrMrcMiscInst : public ArmStaticInst
{
protected:
uint64_t iss;
MiscRegIndex miscReg;
public:
McrMrcMiscInst(const char *_mnemonic, ExtMachInst _machInst,
uint64_t _iss, MiscRegIndex _miscReg);
Fault execute(ExecContext *xc,
Trace::InstRecord *traceData) const override;
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
/**
* This class is also used for IMPLEMENTATION DEFINED registers, whose mcr/mrc
* behaviour is trappable even for unimplemented registers.
*/
class McrMrcImplDefined : public McrMrcMiscInst
{
public:
McrMrcImplDefined(const char *_mnemonic, ExtMachInst _machInst,
uint64_t _iss, MiscRegIndex _miscReg);
Fault execute(ExecContext *xc,
Trace::InstRecord *traceData) const override;
std::string generateDisassembly(
Addr pc, const Loader::SymbolTable *symtab) const override;
};
#endif