A simple raw binary loadimage. More...

#include <loadimage.hh>

Inheritance diagram for ghidra::RawLoadImage:

Public Member Functions
	RawLoadImage (const string &f)
	RawLoadImage constructor.

void	attachToSpace (AddrSpace *id)
	Attach the raw image to a particular space.

void	open (void)
	Open the raw file for reading. More...

virtual	~RawLoadImage (void)
	RawLoadImage destructor.

virtual void	loadFill (uint1 *ptr, int4 size, const Address &addr)
	Get data from the LoadImage. More...

virtual string	getArchType (void) const
	Get a string indicating the architecture type. More...

virtual void	adjustVma (long adjust)
	Adjust load addresses with a global offset. More...

Public Member Functions inherited from ghidra::LoadImage
	LoadImage (const string &f)
	LoadImage constructor. More...

virtual	~LoadImage (void)
	LoadImage destructor. More...

const string &	getFileName (void) const
	Get the name of the LoadImage. More...

virtual void	openSymbols (void) const
	Prepare to read symbols. More...

virtual void	closeSymbols (void) const
	Stop reading symbols. More...

virtual bool	getNextSymbol (LoadImageFunc &record) const
	Get the next symbol record. More...

virtual void	openSectionInfo (void) const
	Prepare to read section info. More...

virtual void	closeSectionInfo (void) const
	Stop reading section info. More...

virtual bool	getNextSection (LoadImageSection &sec) const
	Get info on the next section. More...

virtual void	getReadonly (RangeList &list) const
	Return list of readonly address ranges. More...

uint1 *	load (int4 size, const Address &addr)
	Load a chunk of image. More...

Private Attributes
uintb	vma
	Address of first byte in the file.

ifstream *	thefile
	Main file stream for image.

uintb	filesize
	Total number of bytes in the loadimage/file.

AddrSpace *	spaceid
	Address space that the file bytes are mapped to.

Additional Inherited Members
Protected Attributes inherited from ghidra::LoadImage
string	filename
	Name of the loadimage.

Detailed Description

A simple raw binary loadimage.

This is probably the simplest loadimage. Bytes from the image are read directly from a file stream. The address associated with each byte is determined by a single value, the vma, which is the address of the first byte in the file. No symbols or sections are supported

Member Function Documentation

◆ adjustVma()

void ghidra::RawLoadImage::adjustVma ( long adjust )

virtual

Adjust load addresses with a global offset.

Most load image formats automatically encode information about the true loading address(es) for the data in the image. But if this is missing or incorrect, this routine can be used to make a global adjustment to the load address. Only one adjustment is made across all addresses in the image. The offset passed to this method is added to the stored or default value for any address queried in the image. This is most often used in a raw binary file format. In this case, the entire executable file is intended to be read straight into RAM, as one contiguous chunk, in order to be executed. In the absence of any other info, the first byte of the image file is loaded at offset 0. This method then would adjust the load address of the first byte.

Parameters

adjust is the offset amount to be added to default values

Implements ghidra::LoadImage.

References ghidra::AddrSpace::addressToByte(), ghidra::AddrSpace::getWordSize(), spaceid, and vma.

Referenced by ghidra::RawBinaryArchitecture::buildLoader().

◆ getArchType()

string ghidra::RawLoadImage::getArchType ( void ) const

virtual

Get a string indicating the architecture type.

The load image class is intended to be a generic front-end to the large variety of load formats in use. This method should return a string that identifies the particular architecture this particular image is intended to run on. It is currently the responsibility of any derived LoadImage class to establish a format for this string, but it should generally contain some indication of the operating system and the processor.

Returns: the identifier string

Implements ghidra::LoadImage.

◆ loadFill()

void ghidra::RawLoadImage::loadFill	(	uint1 *	ptr,
		int4	size,
		const Address &	addr
	)

virtual

Get data from the LoadImage.

This is the core routine of a LoadImage. Given a particular address range, this routine retrieves the exact byte values that are stored at that address when the executable is loaded into RAM. The caller must supply a pre-allocated array of bytes where the returned bytes should be stored. If the requested address range does not exist in the image, or otherwise can't be retrieved, this method throws an DataUnavailError exception.

Parameters

ptr	points to where the resulting bytes will be stored
size	is the number of bytes to retrieve from the image
addr	is the starting address of the bytes to retrieve

Implements ghidra::LoadImage.

References filesize, ghidra::Address::getOffset(), ghidra::Address::getShortcut(), ghidra::Address::printRaw(), thefile, and vma.