Package ghidra.program.database.symbol

Class CodeSymbol

java.lang.Object

ghidra.program.database.DatabaseObject

ghidra.program.database.symbol.SymbolDB

ghidra.program.database.symbol.CodeSymbol

All Implemented Interfaces:

Symbol

public class CodeSymbol
extends SymbolDB

Symbols that represent "labels" Symbol data usage: EXTERNAL: String stringData - external memory address/label

Field Summary

Fields inherited from class ghidra.program.database.symbol.SymbolDB

address, lock, symbolMgr

Fields inherited from class ghidra.program.database.DatabaseObject

key

Constructor Summary

Constructors

Constructor	Description
CodeSymbol(SymbolManager mgr, DBObjectCache<SymbolDB> cache, Address addr, long key)	Constructs a new CodeSymbol for a default/dynamic label.
CodeSymbol(SymbolManager mgr, DBObjectCache<SymbolDB> cache, Address addr, DBRecord record)	Constructs a new CodeSymbol

Method Summary

Modifier and Type	Method	Description
boolean	delete()	Delete the symbol and its associated resources.
boolean	delete(boolean keepReferences)	Delete code/label symbol
protected String	doGetName()	The code for creating the name content for this symbol.
Object	getObject()
ProgramLocation	getProgramLocation()	Returns a program location for this symbol; may be null.
SymbolType	getSymbolType()	Returns this symbol's type
boolean	isExternal()	Returns true if this an external symbol.
boolean	isPinned()	Returns true if the symbol is pinned to its current address.
boolean	isPrimary()
boolean	isValidParent(Namespace parent)	Determines if the given parent is valid for this Symbol.
protected boolean	refresh(DBRecord rec)	Tells the object to refresh its state from the database using the specified record if not null.
void	setPinned(boolean pinned)	Sets whether or not this symbol is pinned to its associated address.
boolean	setPrimary()	Sets this symbol to be primary.
protected SourceType	validateNameSource(String newName, SourceType source)	Allow symbol implementations to validate the source when setting the name of this symbol

Methods inherited from class ghidra.program.database.symbol.SymbolDB

checkDeleted, doCheckIsPrimary, doGetParentNamespace, doIsPinned, doSetNameAndNamespace, doSetPinned, doSetPrimary, equals, getAddress, getDataTypeId, getID, getName, getName, getParentNamespace, getParentSymbol, getPath, getProgram, getReferenceCount, getReferences, getReferences, getSource, getSymbolsDynamicallyRenamedByMyRename, getSymbolStringData, getVariableOffset, hashCode, hasMultipleReferences, hasReferences, isDeleted, isDeleting, isDescendant, isDynamic, isExternalEntryPoint, isGlobal, moveLowLevel, refresh, setAddress, setDataTypeId, setName, setNameAndNamespace, setNamespace, setSource, setSymbolStringData, setVariableOffset, toString

Methods inherited from class ghidra.program.database.DatabaseObject

checkIsValid, checkIsValid, getKey, isDeleted, isInvalid, keyChanged, setDeleted, setInvalid, validate

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

CodeSymbol

public CodeSymbol(SymbolManager mgr,
 DBObjectCache<SymbolDB> cache,
 Address addr,
 DBRecord record)

Constructs a new CodeSymbol

Parameters:

mgr - the symbol manager

cache - symbol object cache

addr - the address associated with the symbol

record - the record for this symbol

CodeSymbol

public CodeSymbol(SymbolManager mgr,
 DBObjectCache<SymbolDB> cache,
 Address addr,
 long key)

Constructs a new CodeSymbol for a default/dynamic label.

Parameters:

mgr - the symbol manager

cache - symbol object cache

addr - the address associated with the symbol

key - this must be the absolute encoding of addr

Method Details

getSymbolType

public SymbolType getSymbolType()

Description copied from interface: Symbol

Returns this symbol's type

Returns:

symbol type

refresh

protected boolean refresh(DBRecord rec)

Description copied from class: DatabaseObject

Tells the object to refresh its state from the database using the specified record if not null. NOTE: The default implementation ignores the record and invokes refresh(). Implementations of this method must take care if multiple database tables are used since the record supplied could correspond to another object. In some cases it may be best not to override this method or ignore the record provided.

Overrides:

refresh in class SymbolDB

Parameters:

rec - valid record associated with object's key (optional, may be null to force record lookup or other refresh technique)

Returns:

true if the object was able to refresh itself. Return false if record is null and object was deleted. Objects that extend this class must implement a refresh method. If an object can never refresh itself, then it should always return false.

isExternal

public boolean isExternal()

Description copied from interface: Symbol

Returns true if this an external symbol.

Returns:

true if this an external symbol.

See Also:

• Address.isExternalAddress()

delete

public boolean delete()

Description copied from interface: Symbol

Delete the symbol and its associated resources. Any references symbol associations will be discarded.

Specified by:

delete in interface Symbol

Overrides:

delete in class SymbolDB

Returns:

true if successful

delete

public boolean delete(boolean keepReferences)

Delete code/label symbol

Parameters:

keepReferences - if false all references to this symbols address will be removed, otherwise associated references will simply be disassociated following symbol removal (see SymbolManager.doRemoveSymbol(SymbolDB).

Returns:

true if symbol successfully removed

isPinned

public boolean isPinned()

Description copied from interface: Symbol

Returns true if the symbol is pinned to its current address. If it is pinned, then moving or removing the memory associated with that address will not affect this symbol.

Specified by:

isPinned in interface Symbol

Overrides:

isPinned in class SymbolDB

Returns:

true if the symbol is pinned to its current address.

setPinned

public void setPinned(boolean pinned)

Description copied from interface: Symbol

Sets whether or not this symbol is pinned to its associated address.

If the symbol is pinned then moving or removing the memory associated with its address will not cause this symbol to be removed and will not cause its address to change. If the symbol is not pinned, then removing the memory at its address will also remove this symbol.

Likewise, moving a memory block containing a symbol that is not anchored will change the address for that symbol to keep it associated with the same byte in the memory block.

Specified by:

setPinned in interface Symbol

Overrides:

setPinned in class SymbolDB

Parameters:

pinned - true indicates this symbol is anchored to its address. false indicates this symbol is not anchored to its address.

getObject

public Object getObject()

Returns:

object associated with this symbol or null if symbol has been deleted

isPrimary

public boolean isPrimary()

Specified by:

isPrimary in interface Symbol

Specified by:

isPrimary in class SymbolDB

Returns:

true if this symbol is primary

setPrimary

public boolean setPrimary()

Description copied from interface: Symbol

Sets this symbol to be primary. All other symbols at the same address will be set to !primary. Only applies to non-function symbols.

Specified by:

setPrimary in interface Symbol

Overrides:

setPrimary in class SymbolDB

Returns:

returns true if the symbol was not primary and now it is, otherwise false

See Also:

• Symbol.setPrimary()

getProgramLocation

public ProgramLocation getProgramLocation()

Description copied from interface: Symbol

Returns a program location for this symbol; may be null. This allows implementations to return a more specific program location than what is typically used by the system.

Returns:

the location

isValidParent

public boolean isValidParent(Namespace parent)

Description copied from interface: Symbol

Determines if the given parent is valid for this Symbol. Specified namespace must belong to the same symbol table as this symbol.

Specified by:

isValidParent in interface Symbol

Overrides:

isValidParent in class SymbolDB

Parameters:

parent - prospective parent namespace for this symbol

Returns:

true if parent is valid

doGetName

protected String doGetName()

Description copied from class: SymbolDB

The code for creating the name content for this symbol. This code will be called with the symbol's lock.

Overrides:

doGetName in class SymbolDB

Returns:

the name

validateNameSource

protected SourceType validateNameSource(String newName,
 SourceType source)

Description copied from class: SymbolDB

Allow symbol implementations to validate the source when setting the name of this symbol

Overrides:

validateNameSource in class SymbolDB

Parameters:

newName - the new name

source - the source type

Returns:

the validated source type