Package ghidra.app.util.datatype.microsoft

Class RTTI0DataType

java.lang.Object
ghidra.program.model.data.AbstractDataType
ghidra.program.model.data.DataTypeImpl
ghidra.program.model.data.BuiltIn
ghidra.program.model.data.DynamicDataType
ghidra.app.util.datatype.microsoft.RTTIDataType
ghidra.app.util.datatype.microsoft.RTTI0DataType
All Implemented Interfaces:
BuiltInDataType, DataType, Dynamic, ExtensionPoint
public class RTTI0DataType extends RTTIDataType
The RTTI0 data type represents a TypeDescriptor structure.

Fields for this RunTimeTypeInformation structure can be found on http://www.openrce.org 

 struct TypeDescriptor {
     Pointer vfTablePointer;
     Pointer dataPointer;
     NullTerminatedString name; // mangled version of class name
 }

RTTI_Type_Descriptor is the label for the RTTI0 data structure.

  • Constructor Details

    • RTTI0DataType

      public RTTI0DataType()
      Creates a dynamic Type Descriptor data type.

    • RTTI0DataType

      public RTTI0DataType(DataTypeManager dtm)
      Creates a dynamic Type Descriptor data type.
      Parameters:
      dtm - the data type manager for this data type.

  • Method Details

    • clone

      public DataType clone(DataTypeManager dtm)
      Description copied from interface: DataType
      Returns an instance of this DataType using the specified DataTypeManager to allow its use of the corresponding DataOrganization while retaining its unique identity (see DataType.getUniversalID() and archive association (see DataType.getSourceArchive()) if applicable.

      This instance will be returned if this datatype's DataTypeManager matches the specified dtm. The recursion depth of a clone will stop on any datatype whose DataTypeManager matches the specified dtm and simply use the existing datatype instance.

      NOTE: In general, this method should not be used to obtain an instance to be modified. In most cases changes may be made directly to this instance if supported or to a DataType.copy(DataTypeManager) of this type.

      Parameters:
      dtm - the data-type manager instance whose data-organization should apply.
      Returns:
      cloned instance which may be the same as this instance

    • getDescription

      public String getDescription()
      Description copied from interface: DataType
      Get a String briefly describing this DataType.
      Returns:
      a one-liner describing this DataType.

    • getMnemonic

      public String getMnemonic(Settings settings)
      Description copied from interface: DataType
      Get the mnemonic for this DataType.
      Specified by:
      getMnemonic in interface DataType
      Overrides:
      getMnemonic in class AbstractDataType
      Parameters:
      settings - settings which may influence the result or null
      Returns:
      the mnemonic for this DataType.

    • getRepresentation

      public String getRepresentation(MemBuffer buf, Settings settings, int length)
      Description copied from interface: DataType
      Get bytes from memory in a printable format for this type.
      Parameters:
      buf - the data.
      settings - the settings to use for the representation.
      length - the number of bytes to represent.
      Returns:
      the representation of the data in this format, never null.

    • getValue

      public Object getValue(MemBuffer buf, Settings settings, int length)
      Description copied from interface: DataType
      Returns the interpreted data value as an instance of the advertised value class.

      For instance, Pointer data types should return an Address object (or null), or integer data types should return a Scalar object.

      Parameters:
      buf - the data buffer
      settings - the settings to use.
      length - indicates the maximum number of bytes that may be consumed by a Dynamic datatype, otherwise this value is ignored. A value of -1 may be specified to allow a Dynamic datatype to determine the length based upon the actual data bytes
      Returns:
      the data object, or null if data is invalid

    • getAllComponents

      protected DataTypeComponent[] getAllComponents(MemBuffer buf)
      Description copied from class: DynamicDataType
      Get all dynamic components associated with the specified MemBuffer
      Specified by:
      getAllComponents in class DynamicDataType
      Parameters:
      buf - memory buffer positioned at start of data type instance
      Returns:
      all components or null if memory data is not valid for this data type.

    • getVFTableAddress

      public Address getVFTableAddress(Memory memory, Address rtti0Address)
      Gets the address of the vf table or null if one isn't indicated.
      Parameters:
      memory - the program memory containing the address
      rtti0Address - the address for the RTTI 0
      Returns:
      the address of the vf table or null.

    • getSpareDataAddress

      public Address getSpareDataAddress(Memory memory, Address rtti0Address)
      Gets the address of the spare data, a 0 address if there is no spare data, or null.
      Parameters:
      memory - the program memory containing the address
      rtti0Address - the address for the RTTI 0
      Returns:
      the address of the spare data, a 0 value, or null.

    • getVFTableName

      public String getVFTableName(MemBuffer buf)
      Gets the type name for this descriptor.
      Parameters:
      buf - the memory buffer where data has been created with this data type.
      Returns:
      the name

    • getLength

      public int getLength(Memory memory, Address address, byte[] bytes)
      Gets the total length of the data created when this data type is placed at the indicated address in memory.
      Parameters:
      memory - the program memory for this data.
      address - the start address of the data.
      bytes - the bytes for this data.
      Returns:
      the length of the data. zero is returned if valid data can't be created at the indicated address using this data type.

    • isValid

      public boolean isValid(Program program, Address startAddress, DataValidationOptions validationOptions)
      Description copied from class: RTTIDataType
      Determines if the data type is valid for placing at the indicated address in the program.
      Specified by:
      isValid in class RTTIDataType
      Parameters:
      program - the program
      startAddress - the address where the validated data type will be used to create data
      validationOptions - options indicating how to perform the validation
      Returns:
      true if this data type can be laid down at the specified address

    • getLength

      public int getLength(Memory memory, Address startAddress)
      Gets the total length of the data created when this data type is placed at the indicated address in memory.
      Parameters:
      memory - the program memory for this data.
      startAddress - the start address of the data.
      Returns:
      the length of the data. zero is returned if valid data can't be created at the indicated address using this data type.

    • getDefaultLabelPrefix

      public String getDefaultLabelPrefix()
      Description copied from interface: DataType
      Returns the appropriate string to use as the default label prefix in the absence of any data.
      Specified by:
      getDefaultLabelPrefix in interface DataType
      Overrides:
      getDefaultLabelPrefix in class AbstractDataType
      Returns:
      the default label prefix or null if none specified.