* Copyright 2009, Ingo Weinhold, ingo_weinhold@gmx.de.
* Distributed under the terms of the MIT License.
*/
#ifndef CFA_CONTEXT_H
#define CFA_CONTEXT_H
#include <ObjectList.h>
#include "CfaRuleSet.h"
#include "Types.h"
class CfaContext {
public:
CfaContext();
~CfaContext();
void SetLocation(target_addr_t targetLocation,
target_addr_t initialLocation);
status_t Init(uint32 registerCount);
status_t SaveInitialRuleSet();
status_t PushRuleSet();
status_t PopRuleSet();
target_addr_t TargetLocation() const
{ return fTargetLocation; }
target_addr_t Location() const
{ return fLocation; }
void SetLocation(target_addr_t location);
uint32 CodeAlignment() const
{ return fCodeAlignment; }
void SetCodeAlignment(uint32 alignment);
int32 DataAlignment() const
{ return fDataAlignment; }
void SetDataAlignment(int32 alignment);
uint32 ReturnAddressRegister() const
{ return fReturnAddressRegister; }
void SetReturnAddressRegister(uint32 reg);
CfaCfaRule* GetCfaCfaRule() const
{ return fRuleSet->GetCfaCfaRule(); }
CfaRule* RegisterRule(uint32 index) const
{ return fRuleSet->RegisterRule(index); }
void RestoreRegisterRule(uint32 reg);
private:
typedef BObjectList<CfaRuleSet, true> RuleSetList;
private:
target_addr_t fTargetLocation;
target_addr_t fLocation;
uint32 fCodeAlignment;
int32 fDataAlignment;
uint32 fReturnAddressRegister;
CfaRuleSet* fRuleSet;
CfaRuleSet* fInitialRuleSet;
RuleSetList fRuleSetStack;
};
#endif
