Package ghidra.program.model.lang

Class ParamListStandard

java.lang.Object

ghidra.program.model.lang.ParamListStandard

All Implemented Interfaces:

ParamList

Direct Known Subclasses:

ParamListStandardOut

public class ParamListStandard
extends java.lang.Object
implements ParamList

Standard analysis for parameter lists

Nested Class Summary

Nested classes/interfaces inherited from interface ghidra.program.model.lang.ParamList

ParamList.WithSlotRec

Field Summary

Fields

Change	Modifier and Type	Field	Description
NEW	protected ParamEntry[]	entry
NEW	protected int	numgroup
NEW	protected int	pointermax
NEW	protected AddressSpace	spacebase
NEW	protected boolean	thisbeforeret

Constructor Summary

Constructors

Change	Constructor	Description
ParamListStandard()

Method Summary

Change	Modifier and Type	Method	Description
	protected VariableStorage	assignAddress(Program program, DataType tp, int[] status, boolean ishiddenret, boolean isindirect)	Assign next available memory chunk to type
	void	assignMap(Program prog, DataType[] proto, boolean isinput, java.util.ArrayList<VariableStorage> res, boolean addAutoParams)	Given a list of datatypes, calculate the storage locations used for passing those datatypes
	VariableStorage[]	getPotentialRegisterStorage(Program prog)	Get a list of all parameter storage locations consisting of a single register
	int	getStackParameterAlignment()	Return the amount of alignment used for parameters passed on the stack, or -1 if there are no stack params
	java.lang.Long	getStackParameterOffset()	Find the boundary offset that separates parameters on the stack from other local variables This is usually the address of the first stack parameter, but if the stack grows positive, this is the first address AFTER the parameters on the stack
	boolean	isThisBeforeRetPointer()
	boolean	possibleParamWithSlot(Address loc, int size, ParamList.WithSlotRec res)	Determine if a particular address range is a possible parameter, and if so what slot(s) it occupies
	void	restoreXml(XmlPullParser parser, CompilerSpec cspec, boolean normalstack)

Methods inherited from class java.lang.Object

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

Field Detail

numgroup NEW

protected int numgroup

pointermax NEW

protected int pointermax

thisbeforeret NEW

protected boolean thisbeforeret

entry NEW

protected ParamEntry[] entry

spacebase NEW

protected AddressSpace spacebase

Constructor Detail

ParamListStandard

public ParamListStandard()

Method Detail

assignAddress NEW

protected VariableStorage assignAddress(Program program,
                                        DataType tp,
                                        int[] status,
                                        boolean ishiddenret,
                                        boolean isindirect)

Assign next available memory chunk to type

Parameters:

tp - type being assigned storage

status - status from previous assignments

Returns:

Address of assigned memory chunk

assignMap

public void assignMap(Program prog,
                      DataType[] proto,
                      boolean isinput,
                      java.util.ArrayList<VariableStorage> res,
                      boolean addAutoParams)

Description copied from interface: ParamList

Given a list of datatypes, calculate the storage locations used for passing those datatypes

Specified by:

assignMap in interface ParamList

Parameters:

prog - is the active progra

proto - is the list of datatypes

isinput - is true if this parameter list is being processed for input arguments, false for output

res - is the vector for holding the VariableStorage corresponding to datatypes

addAutoParams - if true add/process auto-parameters

getPotentialRegisterStorage

public VariableStorage[] getPotentialRegisterStorage(Program prog)

Description copied from interface: ParamList

Get a list of all parameter storage locations consisting of a single register

Specified by:

getPotentialRegisterStorage in interface ParamList

Returns:

restoreXml

public void restoreXml(XmlPullParser parser,
                       CompilerSpec cspec,
                       boolean normalstack)
                throws XmlParseException

Specified by:

restoreXml in interface ParamList

Throws:

XmlParseException

getStackParameterAlignment

public int getStackParameterAlignment()

Description copied from interface: ParamList

Return the amount of alignment used for parameters passed on the stack, or -1 if there are no stack params

Specified by:

getStackParameterAlignment in interface ParamList

Returns:

the alignment

getStackParameterOffset

public java.lang.Long getStackParameterOffset()

Description copied from interface: ParamList

Find the boundary offset that separates parameters on the stack from other local variables This is usually the address of the first stack parameter, but if the stack grows positive, this is the first address AFTER the parameters on the stack

Specified by:

getStackParameterOffset in interface ParamList

Returns:

possibleParamWithSlot

public boolean possibleParamWithSlot(Address loc,
                                     int size,
                                     ParamList.WithSlotRec res)

Description copied from interface: ParamList

Determine if a particular address range is a possible parameter, and if so what slot(s) it occupies

Specified by:

possibleParamWithSlot in interface ParamList

Parameters:

loc - is the starting address of the range

size - is the size of the range in bytes

res - holds the resulting slot and slotsize

Returns:

true if the range is a possible parameter

isThisBeforeRetPointer

public boolean isThisBeforeRetPointer()

Specified by:

isThisBeforeRetPointer in interface ParamList