EquateSymbol Class Reference

A Symbol that holds equate information for a constant. More...

#include <database.hh>

Inheritance diagram for EquateSymbol:

Collaboration diagram for EquateSymbol:

Public Member Functions
	EquateSymbol (Scope *sc)
	Constructor for use with restoreXml.
uintb	getValue (void) const
	Get the constant value.
bool	isValueClose (uintb op2Value, int4 size) const
	Is the given value similar to this equate. More...
virtual void	saveXml (ostream &s) const
	Save this Symbol to an XML stream. More...
virtual void	restoreXml (const Element *el)
	Restore this Symbol from an XML stream. More...
Public Member Functions inherited from Symbol
	Symbol (Scope *sc, const string &nm, Datatype *ct)
	Construct given a name and data-type.
	Symbol (Scope *sc)
	Construct for use with restoreXml()
const string &	getName (void) const
	Get the local name of the symbol.
Datatype *	getType (void) const
	Get the data-type.
uint8	getId (void) const
	Get a unique id for the symbol.
uint4	getFlags (void) const
	Get the boolean properties of the Symbol.
uint4	getDisplayFormat (void) const
	Get the format to display the Symbol in.
int2	getCategory (void) const
	Get the Symbol category.
uint2	getCategoryIndex (void) const
	Get the position of the Symbol within its category.
bool	isTypeLocked (void) const
	Is the Symbol type-locked.
bool	isNameLocked (void) const
	Is the Symbol name-locked.
bool	isSizeTypeLocked (void) const
	Is the Symbol size type-locked.
bool	isIndirectStorage (void) const
	Is storage really a pointer to the true Symbol.
bool	isHiddenReturn (void) const
	Is this a reference to the function return value.
bool	isNameUndefined (void) const
	Does this have an undefined name. More...
bool	isMultiEntry (void) const
	Does this have more than one entire mapping.
bool	hasMergeProblems (void) const
	Were some SymbolEntrys not merged.
void	setMergeProblems (void)
	Mark that some SymbolEntrys could not be merged.
bool	isIsolated (void) const
	Return true if this is isolated from speculative merging.
void	setIsolated (bool val)
	Set whether this Symbol should be speculatively merged. More...
Scope *	getScope (void) const
	Get the scope owning this Symbol.
SymbolEntry *	getFirstWholeMap (void) const
	Get the first entire mapping of the symbol. More...
SymbolEntry *	getMapEntry (const Address &addr) const
	Get first mapping of the symbol that contains the given Address. More...
int4	numEntries (void) const
	Return the number of SymbolEntrys.
SymbolEntry *	getMapEntry (int4 i) const
	Return the i-th SymbolEntry for this Symbol.
int4	getMapEntryPosition (const SymbolEntry *entry) const
	Position of given SymbolEntry within this multi-entry Symbol. More...
int4	getResolutionDepth (const Scope *useScope) const
	Get the number of scope names to print to resolve symbol in given context. More...
void	saveXmlHeader (ostream &s) const
	Save basic Symbol properties as XML attributes. More...
void	restoreXmlHeader (const Element *el)
	Restore basic Symbol properties from XML. More...
void	saveXmlBody (ostream &s) const
	Save details of the Symbol to XML. More...
void	restoreXmlBody (List::const_iterator iter)
	Restore details of the Symbol from XML. More...
virtual int4	getBytesConsumed (void) const
	Get number of bytes consumed within the address->symbol map. More...

Additional Inherited Members
Public Types inherited from Symbol
enum	{   force_hex = 1, force_dec = 2, force_oct = 3, force_bin = 4,   force_char = 5, size_typelock = 8, isolate = 16, merge_problems = 32 }
	Possible display (dispflag) properties for a Symbol. More...
Static Public Attributes inherited from Symbol
static uint8	ID_BASE = 0x4000000000000000L
	Base of internal ID's.
Protected Member Functions inherited from Symbol
virtual	~Symbol (void)
	Destructor.
void	setDisplayFormat (uint4 val)
	Set the display format for this Symbol. More...
void	checkSizeTypeLock (void)
	Calculate if size_typelock property is on. More...
Protected Attributes inherited from Symbol
Scope *	scope
	The scope that owns this symbol.
string	name
	The local name of the symbol.
Datatype *	type
	The symbol's data-type.
uint4	nameDedup
	id to distinguish symbols with the same name
uint4	flags
	Varnode-like properties of the symbol.
uint4	dispflags
	Flags affecting the display of this symbol.
int2	category
	Special category (-1==none 0=parameter 1=equate)
uint2	catindex
	Index within category.
uint8	symbolId
	Unique id, 0=unassigned.
vector< list< SymbolEntry >::iterator >	mapentry
	List of storage locations labeled with this Symbol.
uint4	wholeCount
	Number of SymbolEntries that map to the whole Symbol.

Detailed Description

A Symbol that holds equate information for a constant.

This is a symbol that labels a constant. It can either replace the constant's token with the symbol name, or it can force a conversion in the emitted format of the constant.

Member Function Documentation

isValueClose()

bool EquateSymbol::isValueClose	(	uintb	op2Value,
		int4	size
	)		const

Is the given value similar to this equate.

An EquateSymbol should survive certain kinds of transforms during decompilation, such as negation, twos-complementing, adding or subtracting 1. Return true if the given value looks like a transform of this type relative to the underlying value of this equate.

Parameters

op2Value	is the given value
size	is the number of bytes of precision

Returns

true if it is a transformed form

restoreXml()

void EquateSymbol::restoreXml ( const Element *  el )

virtual

Restore this Symbol from an XML stream.

Parameters

el	is the root XML tag of the symbol

Reimplemented from Symbol.

saveXml()

void EquateSymbol::saveXml ( ostream &  s ) const

virtual

Save this Symbol to an XML stream.

Parameters

s	is the output stream

Reimplemented from Symbol.

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

• database.hh
• database.cc