#include <dtb_object.hh>

Inheritance diagram for DtbObject:

Public Member Functions
virtual	~DtbObject ()

bool	addBootCmdLine (const char *_args, size_t len)
	Adds the passed in Command Line options for the kernel to the proper location in the device tree. More...

Addr	findReleaseAddr ()
	Parse the DTB file enough to find the provided release address and return it. More...

bool	loadAllSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addrMask=maxAddr)

bool	loadGlobalSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addrMask=maxAddr)

bool	loadLocalSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr addrMask=maxAddr)

Public Member Functions inherited from ObjectFile
virtual	~ObjectFile ()

virtual bool	loadSections (PortProxy &mem_proxy, Addr mask=maxAddr, Addr offset=0)

virtual bool	loadWeakSymbols (SymbolTable *symtab, Addr base=0, Addr offset=0, Addr mask=maxAddr)

virtual ObjectFile *	getInterpreter () const

virtual bool	relocatable () const

virtual Addr	mapSize () const

virtual void	updateBias (Addr bias_addr)

virtual Addr	bias () const

virtual bool	hasTLS ()

Arch	getArch () const

OpSys	getOpSys () const

Addr	entryPoint () const

Addr	globalPointer () const

Addr	textBase () const

Addr	dataBase () const

Addr	bssBase () const

size_t	textSize () const

size_t	dataSize () const

size_t	bssSize () const

void	setTextBase (Addr a)

Static Public Member Functions
static ObjectFile *	tryFile (const std::string &fname, size_t len, uint8_t *data)
	Static function that tries to load file as a flattened device tree blob. More...

Protected Member Functions
	DtbObject (const std::string &_filename, size_t _len, uint8_t *_data, Arch _arch, OpSys _opSys)

Protected Member Functions inherited from ObjectFile
	ObjectFile (const std::string &_filename, size_t _len, uint8_t *_data, Arch _arch, OpSys _opSys)

bool	loadSection (Section *sec, PortProxy &mem_proxy, Addr mask, Addr offset=0)

void	setGlobalPointer (Addr global_ptr)

Protected Attributes
bool	fileDataMmapped
	Bool marking if this dtb file has replaced the original read in DTB file with a new modified buffer. More...

Protected Attributes inherited from ObjectFile
const std::string	filename

uint8_t *	fileData

size_t	len

Arch	arch

OpSys	opSys

Addr	entry

Addr	globalPtr

Section	text

Section	data

Section	bss

Additional Inherited Members
Public Types inherited from ObjectFile
enum	Arch { UnknownArch, Alpha, SPARC64, SPARC32, Mips, X86_64, I386, Arm64, Arm, Thumb, Power, Riscv }

enum	OpSys { UnknownOpSys, Tru64, Linux, Solaris, LinuxArmOABI, FreeBSD }

Static Public Attributes inherited from ObjectFile
static const Addr	maxAddr = std::numeric_limits<Addr>::max()

Detailed Description

Definition at line 41 of file dtb_object.hh.

Constructor & Destructor Documentation

DtbObject::DtbObject	(	const std::string &	_filename,
		size_t	_len,
		uint8_t *	_data,
		Arch	_arch,
		OpSys	_opSys
	)

protected

Definition at line 54 of file dtb_object.cc.

References ObjectFile::Section::baseAddr, ObjectFile::bss, ObjectFile::data, ObjectFile::fileData, fileDataMmapped, ObjectFile::Section::fileImage, ObjectFile::len, ObjectFile::Section::size, and ObjectFile::text.

Referenced by tryFile().

DtbObject::~DtbObject ( )

virtual

Definition at line 73 of file dtb_object.cc.

References ObjectFile::fileData, fileDataMmapped, and ObjectFile::len.

Member Function Documentation

bool DtbObject::addBootCmdLine	(	const char *	_args,
		size_t	len
	)

Adds the passed in Command Line options for the kernel to the proper location in the device tree.

Parameters

_args	command line to append
len	length of the command line string

Returns: returns true on success, false otherwise

Definition at line 87 of file dtb_object.cc.

References ObjectFile::fileData, fileDataMmapped, ObjectFile::Section::fileImage, ObjectFile::len, ArmISA::offset, ObjectFile::Section::size, ObjectFile::text, and warn.

Referenced by FreebsdArmSystem::initState(), and LinuxArmSystem::initState().

Addr DtbObject::findReleaseAddr ( )

Parse the DTB file enough to find the provided release address and return it.

Returns: release address for SMP boot

Definition at line 156 of file dtb_object.cc.

References betoh(), ArmISA::fd, ObjectFile::fileData, ObjectFile::len, and ArmISA::offset.

Referenced by FreebsdArmSystem::initState().

bool DtbObject::loadAllSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addrMask = `maxAddr`
	)

virtual

Implements ObjectFile.

Definition at line 175 of file dtb_object.cc.

bool DtbObject::loadGlobalSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addrMask = `maxAddr`
	)

virtual

Implements ObjectFile.

Definition at line 182 of file dtb_object.cc.

bool DtbObject::loadLocalSymbols	(	SymbolTable *	symtab,
		Addr	base = `0`,
		Addr	offset = `0`,
		Addr	addrMask = `maxAddr`
	)

virtual

Implements ObjectFile.

Definition at line 190 of file dtb_object.cc.

ObjectFile * DtbObject::tryFile	(	const std::string &	fname,
		size_t	len,
		uint8_t *	data
	)

static

Static function that tries to load file as a flattened device tree blob.

Parameters

fname	path to file
len	length of file
data	mmap'ed data buffer containing file contents

Returns: ObjectFile representing closest match of file type

Definition at line 43 of file dtb_object.cc.

References DtbObject(), ObjectFile::UnknownArch, and ObjectFile::UnknownOpSys.

Referenced by createObjectFile().

Member Data Documentation

bool DtbObject::fileDataMmapped

protected

Bool marking if this dtb file has replaced the original read in DTB file with a new modified buffer.

Definition at line 50 of file dtb_object.hh.

Referenced by addBootCmdLine(), DtbObject(), and ~DtbObject().

The documentation for this class was generated from the following files:

base/loader/dtb_object.hh
base/loader/dtb_object.cc

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation