Package ghidra.app.util.bin.format.macho.relocation

Class MachoRelocation

java.lang.Object
ghidra.app.util.bin.format.macho.relocation.MachoRelocation
public class MachoRelocation extends Object
A representation of a single Mach-O relocation that the MachoRelocationHandler will use to perform the relocation. In Mach-O, some relocations may be "paired," so an instance of this class may contain 2 RelocationInfos.

  • Constructor Details

    • MachoRelocation

      public MachoRelocation(Program program, MachHeader machoHeader, Address relocationAddress, RelocationInfo relocationInfo)
      Creates a new unpaired MachoRelocation object
      Parameters:
      program - The program
      machoHeader - The Mach-O header
      relocationAddress - The Address the relocation takes place at
      relocationInfo - The lower-level RelocationInfo that describes the relocation

    • MachoRelocation

      public MachoRelocation(Program program, MachHeader machoHeader, Address relocationAddress, RelocationInfo relocationInfo, RelocationInfo relocationInfoExtra)
      Creates a new paired MachoRelocation object
      Parameters:
      program - The program
      machoHeader - The Mach-O header
      relocationAddress - The Address the relocation takes place at
      relocationInfo - The lower-level RelocationInfo that describes the first part of the relocation
      relocationInfoExtra - The lower-level RelocationInfo that describes the second part of the relocation

  • Method Details

    • getProgram

      public Program getProgram()
      Gets the Program associated with this relocation
      Returns:
      The Program associated with this relocation

    • getRelocationAddress

      public Address getRelocationAddress()
      Gets the Address the relocation takes place at
      Returns:
      The Address the relocation takes place at

    • getRelocationInfo

      public RelocationInfo getRelocationInfo()
      Gets the lower-level RelocationInfo that describes the relocation
      Returns:
      The lower-level RelocationInfo that describes the relocation

    • getRelocationInfoExtra

      public RelocationInfo getRelocationInfoExtra()
      Gets the lower-level RelocationInfo that describes the second part of the paired relocation. This could be null if the relocation is not paired.
      Returns:
      The lower-level RelocationInfo that describes the second part of the paired relocation, or null if the relocation is not paired

    • getTargetAddress

      public Address getTargetAddress() throws RelocationException
      Gets the Address of the relocation target
      Returns:
      The Address of the relocation target
      Throws:
      RelocationException - If the Address of the relocation target could not be found

    • getTargetAddressExtra

      public Address getTargetAddressExtra() throws RelocationException
      Gets the Address of the extra relocation target
      Returns:
      The Address of the extra relocation target
      Throws:
      RelocationException - If the Address of the extra relocation target could not be found (of if there wasn't an extra relocation target).

    • requiresRelocation

      public boolean requiresRelocation()
      Checks to see if this relocation requires work to be done on it. Since our loader does not allow non-default image bases, it is unnecessary to perform relocations under certain conditions.
      Returns:
      True if relocation steps are needed; otherwise, false

    • getTargetDescription

      public String getTargetDescription()
      Gets a short description of the target of the relocation
      Returns:
      A short description of the target of the relocation

    • toString

      public String toString()
      Overrides:
      toString in class Object