Package ghidra.program.model.pcode

Class PcodeSyntaxTree

java.lang.Object

ghidra.program.model.pcode.PcodeSyntaxTree

All Implemented Interfaces:

PcodeFactory

Direct Known Subclasses:

HighFunction, HighParamID

public class PcodeSyntaxTree
extends java.lang.Object
implements PcodeFactory

Varnodes and PcodeOps in a coherent graph structure

Constructor Summary

Constructors

Constructor	Description
PcodeSyntaxTree(AddressFactory afact, PcodeDataTypeManager dtmanage)

Method Summary

Modifier and Type	Method	Description
VariableStorage	buildStorage(Varnode vn)
void	clear()
Varnode	createFromStorage(Address addr, VariableStorage storage, int logicalSize)
void	delete(PcodeOp op)
Varnode	findInputVarnode(int sz, Address addr)	return Varnode of given size and starting Address, which is also an input
Varnode	findVarnode(int sz, Address addr, Address pc)	return first instance of a Varnode with given size, starting Address, and bound to an instruction at the given Address
Varnode	findVarnode(int sz, Address addr, SequenceNumber sq)	return Varnode of given size and starting Address defined by a PcodeOp with a given SequenceNumber
AddressFactory	getAddressFactory()
java.util.ArrayList<PcodeBlockBasic>	getBasicBlocks()
PcodeDataTypeManager	getDataTypeManager()
int	getNumVarnodes()
PcodeOp	getOpRef(int id)
PcodeOp	getPcodeOp(SequenceNumber sq)
java.util.Iterator<PcodeOpAST>	getPcodeOps()	return all PcodeOps (alive or dead) ordered by SequenceNumber
java.util.Iterator<PcodeOpAST>	getPcodeOps(Address addr)	return all PcodeOps associated with a particular instruction Address
Varnode	getRef(int id)
HighSymbol	getSymbol(int symbolId)
java.util.Iterator<VarnodeAST>	getVarnodes(int sz, Address addr)	return all Varnodes of a given size that start at a given Address
java.util.Iterator<VarnodeAST>	getVarnodes(Address addr)	return all Varnodes that start at a given Address
java.util.Iterator<VarnodeAST>	getVarnodes(AddressSpace spc)	return Iterator to all Varnodes in the indicated AddressSpace
VarnodeBank	getVbank()	Deprecated.
void	insertAfter(PcodeOp newop, PcodeOp prev)
void	insertBefore(PcodeOp newop, PcodeOp follow)
java.util.Iterator<VarnodeAST>	locRange()	Returns an iterator for all Varnodes in the tree ordered by Address
PcodeOp	newOp(SequenceNumber sq, int opc, java.util.ArrayList<Varnode> inputs, Varnode output)
Varnode	newVarnode(int sz, Address addr)	Create a new Varnode with the given size an location
Varnode	newVarnode(int sz, Address addr, int id)
void	readXML(XmlPullParser parser)
VariableStorage	readXMLVarnodePieces(XmlElement el, Address addr)	Read an XML join address with "piece" attributes
void	setAddrTied(Varnode vn, boolean val)
void	setDataType(Varnode vn, DataType type)
void	setInput(PcodeOp op, Varnode vn, int slot)
Varnode	setInput(Varnode vn, boolean val)
void	setMergeGroup(Varnode vn, short val)
void	setOpcode(PcodeOp op, int opc)
void	setOutput(PcodeOp op, Varnode vn)
void	setPersistant(Varnode vn, boolean val)
void	setUnaffected(Varnode vn, boolean val)
void	unInsert(PcodeOp op)
void	unlink(PcodeOpAST op)
void	unSetInput(PcodeOp op, int slot)
void	unSetOutput(PcodeOp op)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PcodeSyntaxTree

public PcodeSyntaxTree(AddressFactory afact,
                       PcodeDataTypeManager dtmanage)

Method Detail

clear

public void clear()

readXMLVarnodePieces

public VariableStorage readXMLVarnodePieces(XmlElement el,
                                            Address addr)
                                     throws PcodeXMLException,
                                            InvalidInputException

Read an XML join address with "piece" attributes

Specified by:

readXMLVarnodePieces in interface PcodeFactory

Parameters:

el - SAX parse tree element

addr - join address associated with pieces

Returns:

the VariableStorage associated with xml

Throws:

PcodeXMLException

InvalidInputException

buildStorage

public VariableStorage buildStorage(Varnode vn)
                             throws InvalidInputException

Specified by:

buildStorage in interface PcodeFactory

Throws:

InvalidInputException

locRange

public java.util.Iterator<VarnodeAST> locRange()

Returns an iterator for all Varnodes in the tree ordered by Address

getVarnodes

public java.util.Iterator<VarnodeAST> getVarnodes(AddressSpace spc)

return Iterator to all Varnodes in the indicated AddressSpace

Parameters:

spc - -- AddressSpace to restrict Iterator to

Returns:

-- Iterator to Varnodes

getVarnodes

public java.util.Iterator<VarnodeAST> getVarnodes(Address addr)

return all Varnodes that start at a given Address

Parameters:

addr - -- Address of Varnodes

Returns:

-- Iterator to Varnodes

getVarnodes

public java.util.Iterator<VarnodeAST> getVarnodes(int sz,
                                                  Address addr)

return all Varnodes of a given size that start at a given Address

Parameters:

sz - -- Size of Varnodes

addr - -- Starting Address of Varnodes

Returns:

-- Iterator to Varnodes

findVarnode

public Varnode findVarnode(int sz,
                           Address addr,
                           Address pc)

return first instance of a Varnode with given size, starting Address, and bound to an instruction at the given Address

Parameters:

sz - -- size of Varnode

addr - -- starting Address of Varnode

pc - -- Address of instruction writing to Varnode

Returns:

-- the Varnode

findVarnode

public Varnode findVarnode(int sz,
                           Address addr,
                           SequenceNumber sq)

return Varnode of given size and starting Address defined by a PcodeOp with a given SequenceNumber

Parameters:

sz - -- size of Varnode

addr - -- starting Address of Varnode

sq - -- SequenceNumber of PcodeOp defining the Varnode

Returns:

-- the Varnode

findInputVarnode

public Varnode findInputVarnode(int sz,
                                Address addr)

return Varnode of given size and starting Address, which is also an input

Parameters:

sz - -- size of Varnode

addr - -- starting Address of Varnode

Returns:

-- the Varnode

getNumVarnodes

public int getNumVarnodes()

getPcodeOps

public java.util.Iterator<PcodeOpAST> getPcodeOps()

return all PcodeOps (alive or dead) ordered by SequenceNumber

Returns:

-- Iterator to PcodeOps

getPcodeOps

public java.util.Iterator<PcodeOpAST> getPcodeOps(Address addr)

return all PcodeOps associated with a particular instruction Address

Parameters:

addr - -- Address of instruction generating PcodeOps

Returns:

-- Iterator to PcodeOps

getPcodeOp

public PcodeOp getPcodeOp(SequenceNumber sq)

getVbank

@Deprecated
public VarnodeBank getVbank()

Deprecated.

Returns:

the varnode bank for this syntax tree

getBasicBlocks

public java.util.ArrayList<PcodeBlockBasic> getBasicBlocks()

getAddressFactory

public AddressFactory getAddressFactory()

Specified by:

getAddressFactory in interface PcodeFactory

Returns:

Address factory

getDataTypeManager

public PcodeDataTypeManager getDataTypeManager()

Specified by:

getDataTypeManager in interface PcodeFactory

Returns:

pcode data type manager used to convert strings to Ghidra data types

newVarnode

public Varnode newVarnode(int sz,
                          Address addr)

Description copied from interface: PcodeFactory

Create a new Varnode with the given size an location

Specified by:

newVarnode in interface PcodeFactory

Parameters:

sz - size of varnode

addr - location of varnode

Returns:

a new varnode

newVarnode

public Varnode newVarnode(int sz,
                          Address addr,
                          int id)

Specified by:

newVarnode in interface PcodeFactory

createFromStorage

public Varnode createFromStorage(Address addr,
                                 VariableStorage storage,
                                 int logicalSize)

Specified by:

createFromStorage in interface PcodeFactory

setInput

public Varnode setInput(Varnode vn,
                        boolean val)

Specified by:

setInput in interface PcodeFactory

getRef

public Varnode getRef(int id)

Specified by:

getRef in interface PcodeFactory

getSymbol

public HighSymbol getSymbol(int symbolId)

Specified by:

getSymbol in interface PcodeFactory

setDataType

public void setDataType(Varnode vn,
                        DataType type)

Specified by:

setDataType in interface PcodeFactory

setAddrTied

public void setAddrTied(Varnode vn,
                        boolean val)

Specified by:

setAddrTied in interface PcodeFactory

setPersistant

public void setPersistant(Varnode vn,
                          boolean val)

Specified by:

setPersistant in interface PcodeFactory

setUnaffected

public void setUnaffected(Varnode vn,
                          boolean val)

Specified by:

setUnaffected in interface PcodeFactory

setMergeGroup

public void setMergeGroup(Varnode vn,
                          short val)

Specified by:

setMergeGroup in interface PcodeFactory

getOpRef

public PcodeOp getOpRef(int id)

Specified by:

getOpRef in interface PcodeFactory

insertBefore

public void insertBefore(PcodeOp newop,
                         PcodeOp follow)

insertAfter

public void insertAfter(PcodeOp newop,
                        PcodeOp prev)

setOpcode

public void setOpcode(PcodeOp op,
                      int opc)

setOutput

public void setOutput(PcodeOp op,
                      Varnode vn)

unSetOutput

public void unSetOutput(PcodeOp op)

setInput

public void setInput(PcodeOp op,
                     Varnode vn,
                     int slot)

unSetInput

public void unSetInput(PcodeOp op,
                       int slot)

unInsert

public void unInsert(PcodeOp op)

delete

public void delete(PcodeOp op)

unlink

public void unlink(PcodeOpAST op)

newOp

public PcodeOp newOp(SequenceNumber sq,
                     int opc,
                     java.util.ArrayList<Varnode> inputs,
                     Varnode output)
              throws UnknownInstructionException

Specified by:

newOp in interface PcodeFactory

Throws:

UnknownInstructionException

readXML

public void readXML(XmlPullParser parser)
             throws PcodeXMLException

Throws:

PcodeXMLException