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

Class DyldCacheSlideInfoCommon

java.lang.Object

ghidra.app.util.bin.format.macho.dyld.DyldCacheSlideInfoCommon

All Implemented Interfaces:

StructConverter

Direct Known Subclasses:

DyldCacheSlideInfo1, DyldCacheSlideInfo2, DyldCacheSlideInfo3, DyldCacheSlideInfo4

public abstract class DyldCacheSlideInfoCommon
extends java.lang.Object
implements StructConverter

Class for representing the common components of the various dyld_cache_slide_info structures. The intent is for the the full dyld_cache_slide_info structures to extend this and add their specific parts.

See Also:

dyld3/shared-cache/dyld_cache_format.h

Field Summary

Fields

Modifier and Type	Field	Description
static int	BYTES_PER_CHAIN_OFFSET
static int	CHAIN_OFFSET_MASK
static int	DATA_PAGE_MAP_ENTRY
protected long	slideInfoOffset
protected int	version

Fields inherited from interface ghidra.app.util.bin.StructConverter

ASCII, BYTE, DWORD, IBO32, IBO64, POINTER, QWORD, STRING, UTF16, UTF8, VOID, WORD

Constructor Summary

Constructors

Constructor	Description
DyldCacheSlideInfoCommon(BinaryReader reader)	Create a new DyldCacheSlideInfoCommon.

Method Summary

Modifier and Type	Method	Description
protected void	addRelocationTableEntry(Program program, Address chainLoc, int type, long chainValue, byte[] origBytes, java.lang.String name)
protected void	createChainPointers(Program program, java.util.List<Address> unchainedLocList, TaskMonitor monitor)	Create pointers at each fixed chain location.
abstract void	fixPageChains(Program program, DyldCacheHeader dyldCacheHeader, boolean addRelocations, MessageLog log, TaskMonitor monitor)
long	getSlideInfoOffset()	Return the original slide info offset
int	getVersion()	Gets the version of the DYLD slide info.
static DyldCacheSlideInfoCommon	parseSlideInfo(BinaryReader reader, long slideInfoOffset, MessageLog log, TaskMonitor monitor)	Parses the slide info
DataType	toDataType()	Returns a structure datatype representing the contents of the implementor of this interface.

Methods inherited from class java.lang.Object

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

Field Detail

DATA_PAGE_MAP_ENTRY

public static final int DATA_PAGE_MAP_ENTRY

See Also:

Constant Field Values

BYTES_PER_CHAIN_OFFSET

public static final int BYTES_PER_CHAIN_OFFSET

See Also:

Constant Field Values

CHAIN_OFFSET_MASK

public static final int CHAIN_OFFSET_MASK

See Also:

Constant Field Values

version

protected int version

slideInfoOffset

protected long slideInfoOffset

Constructor Detail

DyldCacheSlideInfoCommon

public DyldCacheSlideInfoCommon(BinaryReader reader)
                         throws java.io.IOException

Create a new DyldCacheSlideInfoCommon.

Parameters:

reader - A BinaryReader positioned at the start of a DYLD slide info

Throws:

java.io.IOException - if there was an IO-related problem creating the DYLD slide info

Method Detail

parseSlideInfo

public static DyldCacheSlideInfoCommon parseSlideInfo(BinaryReader reader,
                                                      long slideInfoOffset,
                                                      MessageLog log,
                                                      TaskMonitor monitor)

Parses the slide info

Parameters:

reader - A BinaryReader positioned at the start of a DYLD slide info

slideInfoOffset - The offset of the slide info to parse

log - The log

monitor - A cancelable task monitor

Returns:

The slide info object

getVersion

public int getVersion()

Gets the version of the DYLD slide info.

Returns:

The version of the DYLD slide info.

getSlideInfoOffset

public long getSlideInfoOffset()

Return the original slide info offset

Returns:

the original slide info offset

fixPageChains

public abstract void fixPageChains(Program program,
                                   DyldCacheHeader dyldCacheHeader,
                                   boolean addRelocations,
                                   MessageLog log,
                                   TaskMonitor monitor)
                            throws MemoryAccessException,
                                   CancelledException

Throws:

MemoryAccessException

CancelledException

addRelocationTableEntry

protected void addRelocationTableEntry(Program program,
                                       Address chainLoc,
                                       int type,
                                       long chainValue,
                                       byte[] origBytes,
                                       java.lang.String name)
                                throws MemoryAccessException

Throws:

MemoryAccessException

createChainPointers

protected void createChainPointers(Program program,
                                   java.util.List<Address> unchainedLocList,
                                   TaskMonitor monitor)
                            throws CancelledException

Create pointers at each fixed chain location.

Parameters:

program - The program

unchainedLocList - Address list of fixed pointer locations

monitor - A cancelable task monitor

Throws:

CancelledException - if the user cancels

toDataType

public DataType toDataType()
                    throws DuplicateNameException,
                           java.io.IOException

Description copied from interface: StructConverter

Returns a structure datatype representing the contents of the implementor of this interface.

For example, given:

 class A {
     int foo;
     double bar;
 }
 

The return value should be a structure data type with two data type components; an INT and a DOUBLE. The structure should contain field names and, if possible, field comments.

Specified by:

toDataType in interface StructConverter

Returns:

returns a structure datatype representing the implementor of this interface

Throws:

DuplicateNameException - when a datatype of the same name already exists

java.io.IOException

See Also:

StructureDataType