MemState Class Reference

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

#include <mem_state.hh>

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)

Private Attributes
Addr	_brkPoint
Addr	_stackBase
Addr	_stackSize
Addr	_maxStackSize
Addr	_stackMin
Addr	_nextThreadStackBase
Addr	_mmapEnd

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 48 of file mem_state.hh.

Constructor & Destructor Documentation

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

inline

Definition at line 51 of file mem_state.hh.

Member Function Documentation

Addr MemState::getBrkPoint ( ) const

inline

Definition at line 74 of file mem_state.hh.

References _brkPoint.

Addr MemState::getMaxStackSize ( ) const

inline

Definition at line 77 of file mem_state.hh.

References _maxStackSize.

Addr MemState::getMmapEnd ( ) const

inline

Definition at line 80 of file mem_state.hh.

References _mmapEnd.

Addr MemState::getNextThreadStackBase ( ) const

inline

Definition at line 79 of file mem_state.hh.

References _nextThreadStackBase.

Addr MemState::getStackBase ( ) const

inline

Definition at line 75 of file mem_state.hh.

References _stackBase.

Addr MemState::getStackMin ( ) const

inline

Definition at line 78 of file mem_state.hh.

References _stackMin.

Addr MemState::getStackSize ( ) const

inline

Definition at line 76 of file mem_state.hh.

References _stackSize.

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

inline

Definition at line 59 of file mem_state.hh.

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

void MemState::setBrkPoint ( Addr  brk_point )

inline

Definition at line 82 of file mem_state.hh.

References _brkPoint.

void MemState::setMaxStackSize ( Addr  max_stack )

inline

Definition at line 85 of file mem_state.hh.

References _maxStackSize.

void MemState::setMmapEnd ( Addr  mmap_end )

inline

Definition at line 88 of file mem_state.hh.

References _mmapEnd.

void MemState::setNextThreadStackBase ( Addr  ntsb )

inline

Definition at line 87 of file mem_state.hh.

References _nextThreadStackBase.

void MemState::setStackBase ( Addr  stack_base )

inline

Definition at line 83 of file mem_state.hh.

References _stackBase.

void MemState::setStackMin ( Addr  stack_min )

inline

Definition at line 86 of file mem_state.hh.

References _stackMin.

void MemState::setStackSize ( Addr  stack_size )

inline

Definition at line 84 of file mem_state.hh.

References _stackSize.

Member Data Documentation

Addr MemState::_brkPoint

private

Definition at line 91 of file mem_state.hh.

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

Addr MemState::_maxStackSize

private

Definition at line 94 of file mem_state.hh.

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

Addr MemState::_mmapEnd

private

Definition at line 97 of file mem_state.hh.

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

Addr MemState::_nextThreadStackBase

private

Definition at line 96 of file mem_state.hh.

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

Addr MemState::_stackBase

private

Definition at line 92 of file mem_state.hh.

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

Addr MemState::_stackMin

private

Definition at line 95 of file mem_state.hh.

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

Addr MemState::_stackSize

private

Definition at line 93 of file mem_state.hh.

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

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

• sim/mem_state.hh