This class holds the memory state for the Process class and all of its derived, architecture-specific children. More...

#include <mem_state.hh>

Inheritance diagram for MemState:

Public Member Functions
	MemState (Addr brk_point, Addr stack_base, Addr max_stack_size, Addr next_thread_stack_base, Addr mmap_end)

MemState &	operator= (const MemState &in)

Addr	getBrkPoint () const

Addr	getStackBase () const

Addr	getStackSize () const

Addr	getMaxStackSize () const

Addr	getStackMin () const

Addr	getNextThreadStackBase () const

Addr	getMmapEnd () const

void	setBrkPoint (Addr brk_point)

void	setStackBase (Addr stack_base)

void	setStackSize (Addr stack_size)

void	setMaxStackSize (Addr max_stack)

void	setStackMin (Addr stack_min)

void	setNextThreadStackBase (Addr ntsb)

void	setMmapEnd (Addr mmap_end)

void	serialize (CheckpointOut &cp) const override
	Serialize an object. More...

void	unserialize (CheckpointIn &cp) override
	Unserialize an object. More...

Public Member Functions inherited from Serializable
	Serializable ()

virtual	~Serializable ()

void	serializeSection (CheckpointOut &cp, const char *name) const
	Serialize an object into a new section. More...

void	serializeSection (CheckpointOut &cp, const std::string &name) const

void	unserializeSection (CheckpointIn &cp, const char *name)
	Unserialize an a child object. More...

void	unserializeSection (CheckpointIn &cp, const std::string &name)

Private Attributes
Addr	_brkPoint

Addr	_stackBase

Addr	_stackSize

Addr	_maxStackSize

Addr	_stackMin

Addr	_nextThreadStackBase

Addr	_mmapEnd

Additional Inherited Members
Static Public Member Functions inherited from Serializable
static const std::string &	currentSection ()
	Get the fully-qualified name of the active section. More...

static void	serializeAll (const std::string &cpt_dir)

static void	unserializeGlobals (CheckpointIn &cp)

Static Public Attributes inherited from Serializable
static int	ckptCount = 0

static int	ckptMaxCount = 0

static int	ckptPrevCount = -1

Detailed Description

This class holds the memory state for the Process class and all of its derived, architecture-specific children.

The fields held in this class dynamically change as the process object is run in the simulator. They are updated by system calls and faults; each change represents a modification to the process address space. The stack, heap, and mmap boundaries are held with this class along with the base of the next thread stack.

The class is meant to be allocated dynamically and shared through a pointer interface because two process can potentially share their virtual address space if certain options are passed into the clone(2).

Definition at line 50 of file mem_state.hh.

Constructor & Destructor Documentation

◆ MemState()

MemState::MemState	(	Addr	brk_point,
		Addr	stack_base,
		Addr	max_stack_size,
		Addr	next_thread_stack_base,
		Addr	mmap_end
	)

inline

Definition at line 53 of file mem_state.hh.

Member Function Documentation

◆ getBrkPoint()

Addr MemState::getBrkPoint ( ) const

inline

Definition at line 76 of file mem_state.hh.

References _brkPoint.

◆ getMaxStackSize()

Addr MemState::getMaxStackSize ( ) const

inline

Definition at line 79 of file mem_state.hh.

References _maxStackSize.

◆ getMmapEnd()

Addr MemState::getMmapEnd ( ) const

inline

Definition at line 82 of file mem_state.hh.

References _mmapEnd.

◆ getNextThreadStackBase()

Addr MemState::getNextThreadStackBase ( ) const

inline

Definition at line 81 of file mem_state.hh.

References _nextThreadStackBase.

◆ getStackBase()

Addr MemState::getStackBase ( ) const

inline

Definition at line 77 of file mem_state.hh.

References _stackBase.

◆ getStackMin()

Addr MemState::getStackMin ( ) const

inline

Definition at line 80 of file mem_state.hh.

References _stackMin.

◆ getStackSize()

Addr MemState::getStackSize ( ) const

inline

Definition at line 78 of file mem_state.hh.

References _stackSize.

◆ operator=()

MemState& MemState::operator= ( const MemState & in )

inline

Definition at line 61 of file mem_state.hh.

References _brkPoint, _maxStackSize, _mmapEnd, _nextThreadStackBase, _stackBase, _stackMin, and _stackSize.

◆ serialize()

void MemState::serialize ( CheckpointOut & cp ) const

inlineoverridevirtual

Serialize an object.

Output an object's state into the current checkpoint section.

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 93 of file mem_state.hh.

References _brkPoint, _maxStackSize, _mmapEnd, _nextThreadStackBase, _stackBase, _stackMin, _stackSize, and paramOut().

◆ setBrkPoint()

void MemState::setBrkPoint ( Addr brk_point )

inline

Definition at line 84 of file mem_state.hh.

References _brkPoint.

◆ setMaxStackSize()

void MemState::setMaxStackSize ( Addr max_stack )

inline

Definition at line 87 of file mem_state.hh.

References _maxStackSize.

◆ setMmapEnd()

void MemState::setMmapEnd ( Addr mmap_end )

inline

Definition at line 90 of file mem_state.hh.

References _mmapEnd.

◆ setNextThreadStackBase()

void MemState::setNextThreadStackBase ( Addr ntsb )

inline

Definition at line 89 of file mem_state.hh.

References _nextThreadStackBase.

◆ setStackBase()

void MemState::setStackBase ( Addr stack_base )

inline

Definition at line 85 of file mem_state.hh.

References _stackBase.

◆ setStackMin()

void MemState::setStackMin ( Addr stack_min )

inline

Definition at line 88 of file mem_state.hh.

References _stackMin.

◆ setStackSize()

void MemState::setStackSize ( Addr stack_size )

inline

Definition at line 86 of file mem_state.hh.

References _stackSize.

◆ unserialize()

void MemState::unserialize ( CheckpointIn & cp )

inlineoverridevirtual

Unserialize an object.

Read an object's state from the current checkpoint section.

Parameters

cp	Checkpoint state

Implements Serializable.

Definition at line 104 of file mem_state.hh.

References _brkPoint, _maxStackSize, _mmapEnd, _nextThreadStackBase, _stackBase, _stackMin, _stackSize, and paramIn().

Member Data Documentation

◆ _brkPoint

Addr MemState::_brkPoint

private

Definition at line 116 of file mem_state.hh.

Referenced by getBrkPoint(), operator=(), serialize(), setBrkPoint(), and unserialize().

◆ _maxStackSize

Addr MemState::_maxStackSize

private

Definition at line 119 of file mem_state.hh.

Referenced by getMaxStackSize(), operator=(), serialize(), setMaxStackSize(), and unserialize().

◆ _mmapEnd

Addr MemState::_mmapEnd

private

Definition at line 122 of file mem_state.hh.

Referenced by getMmapEnd(), operator=(), serialize(), setMmapEnd(), and unserialize().

◆ _nextThreadStackBase

Addr MemState::_nextThreadStackBase

private

Definition at line 121 of file mem_state.hh.

Referenced by getNextThreadStackBase(), operator=(), serialize(), setNextThreadStackBase(), and unserialize().

◆ _stackBase

Addr MemState::_stackBase

private

Definition at line 117 of file mem_state.hh.

Referenced by getStackBase(), operator=(), serialize(), setStackBase(), and unserialize().

◆ _stackMin

Addr MemState::_stackMin

private

Definition at line 120 of file mem_state.hh.

Referenced by getStackMin(), operator=(), serialize(), setStackMin(), and unserialize().

◆ _stackSize

Addr MemState::_stackSize

private

Definition at line 118 of file mem_state.hh.

Referenced by getStackSize(), operator=(), serialize(), setStackSize(), and unserialize().

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

sim/mem_state.hh

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ MemState()

Member Function Documentation

◆ getBrkPoint()

◆ getMaxStackSize()

◆ getMmapEnd()

◆ getNextThreadStackBase()

◆ getStackBase()

◆ getStackMin()

◆ getStackSize()

◆ operator=()

◆ serialize()

◆ setBrkPoint()

◆ setMaxStackSize()

◆ setMmapEnd()

◆ setNextThreadStackBase()

◆ setStackBase()

◆ setStackMin()

◆ setStackSize()

◆ unserialize()

Member Data Documentation

◆ _brkPoint

◆ _maxStackSize

◆ _mmapEnd

◆ _nextThreadStackBase

◆ _stackBase

◆ _stackMin

◆ _stackSize