Package ghidra.app.util.opinion

Class MachoLoader

java.lang.Object

ghidra.app.util.opinion.AbstractProgramLoader

ghidra.app.util.opinion.AbstractLibrarySupportLoader

ghidra.app.util.opinion.MachoLoader

All Implemented Interfaces:

Loader, ExtensionPoint, Comparable<Loader>

public class MachoLoader
extends AbstractLibrarySupportLoader

A Loader for Mach-O files.

Nested Class Summary

Nested classes/interfaces inherited from class ghidra.app.util.opinion.AbstractLibrarySupportLoader

AbstractLibrarySupportLoader.FileSystemSearchPath

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MACH_O_NAME

Fields inherited from class ghidra.app.util.opinion.AbstractLibrarySupportLoader

DEPTH_OPTION_NAME, LIBRARY_DEST_FOLDER_OPTION_NAME, LINK_EXISTING_OPTION_NAME, LINK_SEARCH_FOLDER_OPTION_NAME, LOCAL_LIBRARY_OPTION_NAME, SYSTEM_LIBRARY_OPTION_NAME

Fields inherited from class ghidra.app.util.opinion.AbstractProgramLoader

ANCHOR_LABELS_OPTION_NAME, APPLY_LABELS_OPTION_NAME

Fields inherited from interface ghidra.app.util.opinion.Loader

COMMAND_LINE_ARG_PREFIX, loggingDisabled, OPTIONS_PROJECT_SAVE_STATE_KEY

Constructor Summary

Constructors

Constructor	Description
MachoLoader()

Method Summary

Modifier and Type	Method	Description
protected ByteProvider	createLibraryByteProvider(FSRL libFsrl, LoadSpec loadSpec, MessageLog log, TaskMonitor monitor)	Overrides the default implementation to account for Universal Binary (UBI) files.
Collection<LoadSpec>	findSupportedLoadSpecs(ByteProvider provider)	If this Loader supports loading the given ByteProvider, this methods returns a Collection of all supported LoadSpecs that contain discovered load specification information that this Loader will need to load.
String	getName()	Gets the Loader's name, which is used both for display purposes, and to identify the Loader in the opinion files.
void	load(ByteProvider provider, LoadSpec loadSpec, List<Option> options, Program program, TaskMonitor monitor, MessageLog log)	Loads bytes in a particular format into the given Program.
protected FSRL	resolveLibraryFile(GFileSystem fs, Path libraryParentPath, String libraryName)	Special Mach-O library file resolver to account for a "Versions" subdirectory being inserted in the library lookup path.

Methods inherited from class ghidra.app.util.opinion.AbstractLibrarySupportLoader

getCustomLibrarySearchPaths, getDefaultOptions, getLibraryDestinationFolderPath, getLibraryDestinationSearchFolder, getLibraryLoadDepth, getLinkSearchFolder, getTier, getTierPriority, isCaseInsensitiveLibraryFilenames, isLinkExistingLibraries, isLoadLocalLibraries, isLoadSystemLibraries, isOptionalLibraryFilenameExtensions, loadProgram, loadProgramInto, matchSupportedLoadSpec, postLoadProgramFixups, processLibrary, shouldSearchAllPaths, validateOptions

Methods inherited from class ghidra.app.util.opinion.AbstractProgramLoader

concatenatePaths, createDefaultMemoryBlocks, createProgram, generateBlockName, getLanguageService, load, loadInto, markAsFunction, postLoadCleanup, release, setProgramProperties, shouldApplyProcessorLabelsByDefault

Methods inherited from class java.lang.Object

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

Methods inherited from interface ghidra.app.util.opinion.Loader

compareTo, getPreferredFileName, loadsIntoNewFolder, supportsLoadIntoProgram, supportsLoadIntoProgram

Field Details

MACH_O_NAME

public static final String MACH_O_NAME

See Also:

• Constant Field Values

Constructor Details

MachoLoader

public MachoLoader()

Method Details

findSupportedLoadSpecs

public Collection<LoadSpec> findSupportedLoadSpecs(ByteProvider provider)
                                            throws IOException

Description copied from interface: Loader

If this Loader supports loading the given ByteProvider, this methods returns a Collection of all supported LoadSpecs that contain discovered load specification information that this Loader will need to load. If this Loader cannot support loading the given ByteProvider, an empty Collection is returned.

Parameters:

provider - The bytes being loaded.

Returns:

A Collection of LoadSpecs that this Loader supports loading, or an empty Collection if this Loader doesn't support loading the given ByteProvider.

Throws:

IOException - if there was an IO-related issue finding the LoadSpecs.

load

public void load(ByteProvider provider,
 LoadSpec loadSpec,
 List<Option> options,
 Program program,
 TaskMonitor monitor,
 MessageLog log)
          throws IOException

Description copied from class: AbstractLibrarySupportLoader

Loads bytes in a particular format into the given Program.

Specified by:

load in class AbstractLibrarySupportLoader

Parameters:

provider - The bytes to load.

loadSpec - The LoadSpec to use during load.

options - The load options.

program - The Program to load into.

monitor - A cancelable task monitor.

log - The message log.

Throws:

IOException - if there was an IO-related problem loading.

getName

public String getName()

Description copied from interface: Loader

Gets the Loader's name, which is used both for display purposes, and to identify the Loader in the opinion files.

Returns:

The Loader's name.

createLibraryByteProvider

protected ByteProvider createLibraryByteProvider(FSRL libFsrl,
 LoadSpec loadSpec,
 MessageLog log,
 TaskMonitor monitor)
                                          throws IOException,
CancelledException

Overrides the default implementation to account for Universal Binary (UBI) files. These must be specially parsed to find the internal file matching the current architecture.

FatHeader is used to parse the file to determine if it is a UBI. If so, each file within the archive is run through the import process until one is found that is successful (meaning it matches the correct architecture). Only one file in the UBI will ever be imported. If the provided file is NOT a UBI, default import method will be invoked.

Creates a ByteProvider for the given library FSRL

Overrides:

createLibraryByteProvider in class AbstractLibrarySupportLoader

Parameters:

libFsrl - The library FSRL to get a ByteProvider for

loadSpec - An optional LoadSpec the ByteProvider should conform to

log - The log

monitor - A cancellable monitor

Returns:

A ByteProvider for the given library FSRL, or null if one could not be created that matches the given LoadSpec

Throws:

IOException - If there was an IO-related issue

CancelledException - If the user cancelled the operation

resolveLibraryFile

protected FSRL resolveLibraryFile(GFileSystem fs,
 Path libraryParentPath,
 String libraryName)
                           throws IOException

Special Mach-O library file resolver to account for a "Versions" subdirectory being inserted in the library lookup path. For example, a reference to:

/System/Library/Frameworks/Foundation.framework/Foundation

might be found at:

/System/Library/Frameworks/Foundation.framework//Versions/C/Foundation

Resolves the given library path to an existing FSRL. Some Loaders have relaxed requirements on what counts as a valid library filename match. For example, case-insensitive lookup may be allowed, and filename extensions may be optional.

Overrides:

resolveLibraryFile in class AbstractLibrarySupportLoader

Parameters:

fs - The file system to resolve in

libraryParentPath - The Path of the libraries parent directory, relative to the given file system (could be null)

libraryName - The library name

Returns:

The library resolved to an existing FSRL, or null if it did not resolve

Throws:

IOException - If an IO-related problem occurred