A process with emulated Arm/Linux syscalls. More...

#include <process.hh>

Inheritance diagram for gem5::ArmLinuxProcess64:

Public Member Functions
	ArmLinuxProcess64 (const ProcessParams &params, loader::ObjectFile *objFile, loader::Arch _arch)

void	initState () override
	initState() is called on each SimObject when not restoring from a checkpoint.

Public Member Functions inherited from gem5::ArmProcess64
	ArmProcess64 (const ProcessParams &params, loader::ObjectFile *objFile, loader::Arch _arch)

Public Member Functions inherited from gem5::Process
	Process (const ProcessParams &params, EmulationPageTable pTable, loader::ObjectFile obj_file)

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

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

void	init () override
	init() is called after all C++ SimObjects have been created and all ports are connected.

void	initState () override
	initState() is called on each SimObject when not restoring from a checkpoint.

DrainState	drain () override
	Draining is the process of clearing out the states of SimObjects.These are the SimObjects that are partially executed or are partially in flight.

virtual void	syscall (ThreadContext *tc)

uint64_t	uid ()

uint64_t	euid ()

uint64_t	gid ()

uint64_t	egid ()

uint64_t	pid ()

uint64_t	ppid ()

uint64_t	pgid ()

void	pgid (uint64_t pgid)

uint64_t	tgid ()

const char *	progName () const

EmulatedDriver *	findDriver (std::string filename)
	Find an emulated device driver.

void	updateBias ()

Addr	getBias ()

Addr	getStartPC ()

loader::ObjectFile *	getInterpreter ()

void	allocateMem (Addr vaddr, int64_t size, bool clobber=false)

bool	fixupFault (Addr vaddr)
	Attempt to fix up a fault at vaddr by allocating a page on the stack.

void	assignThreadContext (ContextID context_id)

void	revokeThreadContext (int context_id)
	After delegating a thread context to a child process no longer should relate to the ThreadContext.

virtual bool	mmapGrowsDown () const
	Does mmap region grow upward or downward from mmapEnd? Most platforms grow downward, but a few (such as Alpha) grow upward instead, so they can override this method to return false.

bool	map (Addr vaddr, Addr paddr, int64_t size, bool cacheable=true)
	Maps a contiguous range of virtual addresses in this process's address space to a contiguous range of physical addresses.

void	replicatePage (Addr vaddr, Addr new_paddr, ThreadContext old_tc, ThreadContext new_tc, bool alloc_page)

virtual void	clone (ThreadContext old_tc, ThreadContext new_tc, Process *new_p, RegVal flags)

std::string	absolutePath (const std::string &path, bool host_fs)
	Return an absolute path given a relative path paired with the current working directory of the process running under simulation.

std::string	checkPathRedirect (const std::string &filename)
	Redirect file path if it matches any keys initialized by system object.

Public Member Functions inherited from gem5::SimObject
const Params &	params () const

	SimObject (const Params &p)

virtual	~SimObject ()

virtual void	loadState (CheckpointIn &cp)
	loadState() is called on each SimObject when restoring from a checkpoint.

virtual void	regProbePoints ()
	Register probe points for this object.

virtual void	regProbeListeners ()
	Register probe listeners for this object.

ProbeManager *	getProbeManager ()
	Get the probe manager for this object.

virtual Port &	getPort (const std::string &if_name, PortID idx=InvalidPortID)
	Get a port with a given name and index.

virtual void	startup ()
	startup() is the final initialization call before simulation.

DrainState	drain () override
	Provide a default implementation of the drain interface for objects that don't need draining.

virtual void	memWriteback ()
	Write back dirty buffers to memory using functional writes.

virtual void	memInvalidate ()
	Invalidate the contents of memory buffers.

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

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

Public Member Functions inherited from gem5::EventManager
EventQueue *	eventQueue () const

void	schedule (Event &event, Tick when)

void	deschedule (Event &event)

void	reschedule (Event &event, Tick when, bool always=false)

void	schedule (Event *event, Tick when)

void	deschedule (Event *event)

void	reschedule (Event *event, Tick when, bool always=false)

void	wakeupEventQueue (Tick when=(Tick) -1)
	This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers.

void	setCurTick (Tick newVal)

	EventManager (EventManager &em)
	Event manger manages events in the event queue.

	EventManager (EventManager *em)

	EventManager (EventQueue *eq)

Public Member Functions inherited from gem5::Serializable
	Serializable ()

virtual	~Serializable ()

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

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

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

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

Public Member Functions inherited from gem5::Drainable
DrainState	drainState () const
	Return the current drain state of an object.

virtual void	notifyFork ()
	Notify a child process of a fork.

Public Member Functions inherited from gem5::statistics::Group
	Group (Group parent, const char name=nullptr)
	Construct a new statistics group.

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters.

virtual void	resetStats ()
	Callback to reset stats.

virtual void	preDumpStats ()
	Callback before stats are dumped.

void	addStat (statistics::Info *info)
	Register a stat with this group.

const std::map< std::string, Group * > &	getStatGroups () const
	Get all child groups associated with this object.

const std::vector< Info * > &	getStats () const
	Get all stats associated with this object.

void	addStatGroup (const char name, Group block)
	Add a stat block as a child of this block.

const Info *	resolveStat (std::string name) const
	Resolve a stat by its name within this group.

void	mergeStatGroup (Group *block)
	Merge the contents (stats & children) of a block to this block.

	Group ()=delete

	Group (const Group &)=delete

Group &	operator= (const Group &)=delete

Public Member Functions inherited from gem5::Named
	Named (const std::string &name_)

virtual	~Named ()=default

virtual std::string	name () const

Additional Inherited Members
Public Types inherited from gem5::SimObject
typedef SimObjectParams	Params

Static Public Member Functions inherited from gem5::Process
static Process *	tryLoaders (const ProcessParams &params, loader::ObjectFile *obj_file)

Static Public Member Functions inherited from gem5::SimObject
static void	serializeAll (const std::string &cpt_dir)
	Create a checkpoint by serializing all SimObjects in the system.

static SimObject *	find (const char *name)
	Find the SimObject with the given name and return a pointer to it.

static void	setSimObjectResolver (SimObjectResolver *resolver)
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.

static SimObjectResolver *	getSimObjectResolver ()
	There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.

Static Public Member Functions inherited from gem5::Serializable
static const std::string &	currentSection ()
	Gets the fully-qualified name of the active section.

static void	generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream)
	Generate a checkpoint file so that the serialization can be routed to it.

Public Attributes inherited from gem5::Process
std::vector< ContextID >	contextIds

System *	system

SEWorkload *	seWorkload

bool	useArchPT

bool	kvmInSE

bool	useForClone

EmulationPageTable *	pTable

std::unique_ptr< SETranslatingPortProxy >	initVirtMem

loader::ObjectFile *	objFile

loader::MemoryImage	image

loader::MemoryImage	interpImage

std::vector< std::string >	argv

std::vector< std::string >	envp

std::string	executable

std::string	tgtCwd
	The cwd members are used to track changes to the current working directory for the purpose of executing system calls which depend on relative paths (i.e.

std::string	hostCwd

std::string	release

uint64_t	_uid

uint64_t	_euid

uint64_t	_gid

uint64_t	_egid

uint64_t	_pid

uint64_t	_ppid

uint64_t	_pgid

uint64_t	_tgid

std::vector< EmulatedDriver * >	drivers

std::shared_ptr< FDArray >	fds

bool *	exitGroup

std::shared_ptr< MemState >	memState

uint64_t	childClearTID
	Calls a futex wakeup at the address specified by this pointer when this process exits.

bool *	sigchld

std::vector< ContextID >	vforkContexts

statistics::Scalar	numSyscalls

Protected Member Functions inherited from gem5::ArmProcess64
void	initState () override
	initState() is called on each SimObject when not restoring from a checkpoint.

uint32_t	armHwcapImpl () const override
	AArch64 AT_HWCAP.

uint64_t	armHwcapImpl2 () const override

Protected Member Functions inherited from gem5::ArmProcess
	ArmProcess (const ProcessParams &params, loader::ObjectFile *objFile, loader::Arch _arch)

template<class IntType >
void	argsInit (int pageSize, const RegId &spId)

template<class IntType >
IntType	armHwcap () const

template<class IntType >
IntType	armHwcap2 () const

Protected Member Functions inherited from gem5::Drainable
	Drainable ()

virtual	~Drainable ()

virtual void	drainResume ()
	Resume execution after a successful drain.

void	signalDrainDone () const
	Signal that an object is drained.

Protected Attributes inherited from gem5::ArmProcess
loader::Arch	arch

Protected Attributes inherited from gem5::SimObject
const SimObjectParams &	_params
	Cached copy of the object parameters.

Protected Attributes inherited from gem5::EventManager
EventQueue *	eventq
	A pointer to this object's event queue.

Detailed Description

A process with emulated Arm/Linux syscalls.

Definition at line 67 of file process.hh.

Constructor & Destructor Documentation

◆ ArmLinuxProcess64()

gem5::ArmLinuxProcess64::ArmLinuxProcess64	(	const ProcessParams &	params,
		loader::ObjectFile *	objFile,
		loader::Arch	_arch )

inline

Definition at line 70 of file process.hh.

Member Function Documentation

◆ initState()

void gem5::ArmLinuxProcess64::initState ( )

overridevirtual

initState() is called on each SimObject when not restoring from a checkpoint.

This provides a hook for state initializations that are only required for a "cold start".

Reimplemented from gem5::SimObject.

Definition at line 112 of file process.cc.

References gem5::ArmProcess64::initState().

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

arch/arm/linux/process.hh
arch/arm/linux/process.cc

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ArmLinuxProcess64()

Member Function Documentation

◆ initState()