EffectRecord Class Reference

Description of the indirect effect a sub-function has on a memory range. More...

#include <fspec.hh>

Public Types
enum	{ unaffected = 1, killedbycall = 2, return_address = 3, unknown_effect = 4 }

Public Member Functions
	EffectRecord (void)
	Constructor for use with restoreXml()
	EffectRecord (const EffectRecord &op2)
	Copy constructor.
	EffectRecord (const Address &addr, int4 size)
	Construct a memory range with an unknown effect. More...
	EffectRecord (const ParamEntry &entry, uint4 t)
	Construct an effect on a parameter storage location. More...
	EffectRecord (const VarnodeData &addr, uint4 t)
	Construct an effect on a memory range. More...
uint4	getType (void) const
	Get the type of effect.
Address	getAddress (void) const
	Get the starting address of the affected range.
int4	getSize (void) const
	Get the size of the affected range.
bool	operator< (const EffectRecord &op2) const
	Comparator for EffectRecords. More...
bool	operator== (const EffectRecord &op2) const
	Equality operator.
bool	operator!= (const EffectRecord &op2) const
	Inequality operator.
void	saveXml (ostream &s) const
	Save the record to an XML stream. More...
void	restoreXml (uint4 grouptype, const Element *el, const AddrSpaceManager *manage)
	Restore the record from an XML stream. More...

Private Attributes
VarnodeData	address
	The memory range affected.
uint4	type
	The type of effect.

Detailed Description

Description of the indirect effect a sub-function has on a memory range.

This object applies only to the specific memory range, which is seen from the point of view of the calling function as a particular sub-function gets called. The main enumeration below lists the possible effects.

Member Enumeration Documentation

anonymous enum

Enumerator
unaffected	The sub-function does not change the value at all.
killedbycall	The memory is changed and is completely unrelated to its original value.
return_address	The memory is being used to pass back a return value from the sub-function.
unknown_effect	An unknown effect (indicates the absence of an EffectRecord)

Constructor & Destructor Documentation

EffectRecord::EffectRecord	(	const Address &	addr,
		int4	size
	)

Construct a memory range with an unknown effect.

The type is set to unknown_effect

Parameters

addr	is the start of the memory range
size	is the number of bytes in the memory range

References Address::getOffset(), Address::getSpace(), and AddrSpace::type.

EffectRecord::EffectRecord	(	const ParamEntry &	entry,
		uint4	t
	)

Construct an effect on a parameter storage location.

Parameters

entry	is a model of the parameter storage
t	is the effect type

References ParamEntry::getBase(), ParamEntry::getSize(), ParamEntry::getSpace(), and AddrSpace::type.

EffectRecord::EffectRecord	(	const VarnodeData &	data,
		uint4	t
	)

Construct an effect on a memory range.

Parameters

data	is the memory range affected
t	is the effect type

References AddrSpace::type.

Member Function Documentation

bool EffectRecord::operator< ( const EffectRecord &  op2 ) const

inline

Comparator for EffectRecords.

Sort on the memory range, then the effect type

Parameters

op2	is the other record to compare with this

Returns

true if this should be ordered before the other record

References address, and type.

void EffectRecord::restoreXml	(	uint4	grouptype,
		const Element *	el,
		const AddrSpaceManager *	manage
	)

Restore the record from an XML stream.

Reads an <addr> tag to get the memory range. The effect type is inherited from the parent.

Parameters

grouptype	is the effect inherited from the parent
el	is address element
manage	is a manager to resolve address space references

References AddrSpace::type.

void EffectRecord::saveXml

(

ostream &

s

)

const

Save the record to an XML stream.

Writes just an <addr> tag. The effect type is indicated by the parent tag.

Parameters

s	is the output stream

References Address::saveXml(), and AddrSpace::type.

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The documentation for this class was generated from the following files:

• fspec.hh
• fspec.cc