#include <process.hh>

Inheritance diagram for gem5::Process:

Classes
class	Loader
	Each instance of a Loader subclass will have a chance to try to load an object file when tryLoaders is called. More...

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

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

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

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

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

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. More...

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. More...

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. More...

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. More...

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. More...

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

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. More...

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

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. More...

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

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

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

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

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

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

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

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

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

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

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. More...

void	setCurTick (Tick newVal)

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

	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. 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)

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

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

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

virtual	~Group ()

virtual void	regStats ()
	Callback to set stat parameters. More...

virtual void	resetStats ()
	Callback to reset stats. More...

virtual void	preDumpStats ()
	Callback before stats are dumped. More...

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

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

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

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

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

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

	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

Static Public Member Functions
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. More...

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

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

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

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

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

Public Attributes
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. More...

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. More...

bool *	sigchld

std::vector< ContextID >	vforkContexts

statistics::Scalar	numSyscalls

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

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

virtual	~Drainable ()

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

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

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

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

Detailed Description

Definition at line 68 of file process.hh.

Constructor & Destructor Documentation

◆ Process()

gem5::Process::Process	(	const ProcessParams &	params,
		EmulationPageTable *	pTable,
		loader::ObjectFile *	obj_file
	)

Linux bundles together processes into this concept called a thread group. The thread group is responsible for recording which processes behave as threads within a process context. The thread group leader is the process who's tgid is equal to its pid. Other processes which belong to the thread group, but do not lead the thread group, are treated as child threads. These threads are created by the clone system call with options specified to create threads (differing from the options used to implement a fork). By default, set up the tgid/pid with a new, equivalent value. If CLONE_THREAD is specified, patch the tgid value with the old process' value.

Definition at line 113 of file process.cc.

References _pid, _tgid, gem5::loader::ImageFile::buildImage(), gem5::loader::debugSymbolTable, exitGroup, fatal_if, image, gem5::System::maxPID, objFile, gem5::SimObject::params(), gem5::System::PIDs, seWorkload, sigchld, gem5::loader::ObjectFile::symtab(), and system.

Member Function Documentation

◆ absolutePath()

std::string gem5::Process::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.

Parameters

path	The relative path (generally a filename) that needs the current working directory prepended.
host_fs	A flag which determines whether to return a path for the host filesystem or the filesystem of the process running under simulation. Only matters if filesysem redirection is used to replace files (or directories) that would normally appear via the host filesystem.

Returns: String containing an absolute path.

Definition at line 505 of file process.cc.

References hostCwd, gem5::normalize(), gem5::startswith(), and tgtCwd.

Referenced by checkPathRedirect().

◆ allocateMem()

void gem5::Process::allocateMem	(	Addr	vaddr,
		int64_t	size,
		bool	clobber = `false`
	)

Definition at line 317 of file process.cc.

References gem5::SEWorkload::allocPhysPages(), gem5::EmulationPageTable::Clobber, gem5::divCeil(), gem5::EmulationPageTable::lookup(), gem5::EmulationPageTable::map(), gem5::EmulationPageTable::pageSize(), pTable, gem5::roundDown(), seWorkload, gem5::MipsISA::vaddr, and warn.

Referenced by gem5::MemState::fixupFault(), gem5::SETranslatingPortProxy::fixupRange(), gem5::X86ISA::I386Process::initState(), and gem5::Shader::mmap().

◆ assignThreadContext()

void gem5::Process::assignThreadContext ( ContextID context_id )

inline

Definition at line 131 of file process.hh.

References contextIds.

Referenced by gem5::doClone(), gem5::execveFunc(), and gem5::BaseCPU::registerThreadContexts().

◆ checkPathRedirect()

std::string gem5::Process::checkPathRedirect ( const std::string & filename )

Redirect file path if it matches any keys initialized by system object.

Parameters

filename An input parameter containing either a relative path or an absolute path. If given a relative path, the path will be prepended to the current working directory of the simulation with respect to the host filesystem.

Returns: String containing an absolute path.

Definition at line 424 of file process.cc.

References absolutePath(), gem5::Serializable::path, gem5::System::redirectPaths, gem5::startswith(), and system.

Referenced by gem5::fchmodatFunc(), gem5::futimesatFunc(), gem5::lstat64Func(), gem5::lstatFunc(), gem5::statfsFunc(), gem5::statFunc(), and gem5::truncate64Func().

◆ clone()

void gem5::Process::clone	(	ThreadContext *	old_tc,
		ThreadContext *	new_tc,
		Process *	new_p,
		RegVal	flags
	)

virtual

Share the process memory address space between the new process and the old process. Changes in one will be visible in the other due to the pointer use.

Duplicate the process memory address space. The state needs to be copied over (rather than using pointers to share everything).

The parent and child file descriptors are shared because the two FDArray pointers are pointing to the same FDArray. Opening and closing file descriptors will be visible to both processes.

Copy the file descriptors from the old process into the new child process. The file descriptors entry can be opened and closed independently of the other process being considered. The host file descriptors are also dup'd so that the flags for the host file descriptor is independent of the other process.

Reimplemented in gem5::X86ISA::I386Process, gem5::X86ISA::X86_64Process, and gem5::X86ISA::X86Process.

Definition at line 167 of file process.cc.

References _tgid, argv, CLONE_FILES, CLONE_THREAD, CLONE_VFORK, CLONE_VM, gem5::ThreadContext::contextId(), envp, exitGroup, fds, flags, gem5::EmulationPageTable::getMappings(), map(), memState, pTable, replicatePage(), gem5::EmulationPageTable::translate(), gem5::MipsISA::vaddr, and vforkContexts.

Referenced by gem5::X86ISA::X86Process::clone().

◆ drain()

DrainState gem5::Process::drain ( )

overridevirtual

Draining is the process of clearing out the states of SimObjects.These are the SimObjects that are partially executed or are partially in flight.

Draining is mostly used before forking and creating a check point.

This function notifies an object that it needs to drain its state.

If the object does not need further simulation to drain internal buffers, it returns DrainState::Drained and automatically switches to the Drained state. If the object needs more simulation, it returns DrainState::Draining and automatically enters the Draining state. Other return values are invalid.

Note: An object that has entered the Drained state can be disturbed by other objects in the system and consequently stop being drained. These perturbations are not visible in the drain state. The simulator therefore repeats the draining process until all objects return DrainState::Drained on the first call to drain().

Returns: DrainState::Drained if the object is drained at this point in time, DrainState::Draining if it needs further simulation.

Implements gem5::Drainable.

Definition at line 310 of file process.cc.

References gem5::Drained, and fds.

◆ egid()

uint64_t gem5::Process::egid ( )

inline

Definition at line 86 of file process.hh.

References _egid.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and gem5::getegidFunc().

◆ euid()

uint64_t gem5::Process::euid ( )

inline

Definition at line 84 of file process.hh.

References _euid.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and gem5::geteuidFunc().

◆ findDriver()

EmulatedDriver * gem5::Process::findDriver ( std::string filename )

Find an emulated device driver.

Parameters

filename Name of the device (under /dev)

Returns: Pointer to driver object if found, else nullptr

Definition at line 413 of file process.cc.

References gem5::ArmISA::d, and drivers.

◆ fixupFault()

bool gem5::Process::fixupFault ( Addr vaddr )

Attempt to fix up a fault at vaddr by allocating a page on the stack.

Returns: Whether the fault has been fixed.

Definition at line 365 of file process.cc.

References memState, and gem5::MipsISA::vaddr.

Referenced by gem5::X86ISA::PageFault::invoke(), and gem5::X86ISA::TLB::translateFunctional().

◆ getBias()

Addr gem5::Process::getBias ( )

Definition at line 489 of file process.cc.

References gem5::loader::ObjectFile::bias(), getInterpreter(), and objFile.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), and gem5::X86ISA::X86Process::argsInit().

◆ getInterpreter()

loader::ObjectFile * gem5::Process::getInterpreter ( )

Definition at line 483 of file process.cc.

References gem5::loader::ObjectFile::getInterpreter(), and objFile.

Referenced by getBias(), and getStartPC().

◆ getStartPC()

Addr gem5::Process::getStartPC ( )

Definition at line 497 of file process.cc.

References gem5::loader::ObjectFile::entryPoint(), getInterpreter(), and objFile.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::RiscvProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and gem5::PowerProcess::initState().

◆ gid()

uint64_t gem5::Process::gid ( )

inline

Definition at line 85 of file process.hh.

References _gid.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and gem5::getgidFunc().

◆ init()

void gem5::Process::init ( )

overridevirtual

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

Initializations that are independent of unserialization but rely on a fully instantiated and connected SimObject graph should be done here.

Reimplemented from gem5::SimObject.

Definition at line 278 of file process.cc.

References gem5::loader::ImageFile::buildImage(), gem5::loader::ObjectFile::getInterpreter(), interpImage, objFile, and updateBias().

Referenced by gem5::execveFunc().

◆ initState()

void gem5::Process::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 288 of file process.cc.

References gem5::ThreadContext::activate(), gem5::SETranslatingPortProxy::Always, contextIds, fatal, image, gem5::EmulationPageTable::initState(), initVirtMem, interpImage, gem5::Named::name(), pTable, system, gem5::System::threads, and gem5::loader::MemoryImage::write().

Referenced by gem5::doClone(), gem5::execveFunc(), gem5::MipsProcess::initState(), gem5::ArmProcess32::initState(), gem5::ArmProcess64::initState(), gem5::PowerProcess::initState(), gem5::RiscvProcess64::initState(), gem5::RiscvProcess32::initState(), gem5::SparcProcess::initState(), gem5::X86ISA::X86_64Process::initState(), and gem5::X86ISA::I386Process::initState().

◆ map()

bool gem5::Process::map	(	Addr	vaddr,
		Addr	paddr,
		int	size,
		bool	cacheable = `true`
	)

Maps a contiguous range of virtual addresses in this process's address space to a contiguous range of physical addresses.

This function exists primarily to expose the map operation to python, so that configuration scripts can set up mappings in SE mode.

Parameters

vaddr	The starting virtual address of the range.
paddr	The starting physical address of the range.
size	The length of the range in bytes.
cacheable	Specifies whether accesses are cacheable.

Returns: True if the map operation was successful. (At this point in time, the map operation always succeeds.)

Definition at line 404 of file process.cc.

References gem5::EmulationPageTable::map(), pTable, gem5::EmulationPageTable::Uncacheable, and gem5::MipsISA::vaddr.

Referenced by clone().

◆ mmapGrowsDown()

virtual bool gem5::Process::mmapGrowsDown ( ) const

inlinevirtual

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.

Reimplemented in gem5::RiscvProcess.

Definition at line 147 of file process.hh.

Referenced by gem5::MemState::extendMmap(), gem5::Shader::mmap(), and updateBias().

◆ pgid() [1/2]

uint64_t gem5::Process::pgid ( )

inline

Definition at line 89 of file process.hh.

References _pgid.

Referenced by gem5::getpgrpFunc(), and gem5::setpgidFunc().

◆ pgid() [2/2]

void gem5::Process::pgid ( uint64_t pgid )

inline

Definition at line 90 of file process.hh.

References _pgid, and pgid().

Referenced by pgid().

◆ pid()

uint64_t gem5::Process::pid ( )

inline

Definition at line 87 of file process.hh.

References _pid.

Referenced by gem5::doClone(), gem5::exitImpl(), gem5::gettidFunc(), gem5::setpgidFunc(), and gem5::tgkillFunc().

◆ ppid()

uint64_t gem5::Process::ppid ( )

inline

Definition at line 88 of file process.hh.

References _ppid.

Referenced by gem5::getppidFunc().

◆ progName()

const char* gem5::Process::progName ( ) const

inline

Definition at line 93 of file process.hh.

References executable.

◆ replicatePage()

void gem5::Process::replicatePage	(	Addr	vaddr,
		Addr	new_paddr,
		ThreadContext *	old_tc,
		ThreadContext *	new_tc,
		bool	alloc_page
	)

Definition at line 347 of file process.cc.

References gem5::SEWorkload::allocPhysPages(), gem5::EmulationPageTable::map(), gem5::EmulationPageTable::pageSize(), pTable, gem5::PortProxy::readBlob(), seWorkload, gem5::MipsISA::vaddr, and gem5::PortProxy::writeBlob().

Referenced by clone().

◆ revokeThreadContext()

void gem5::Process::revokeThreadContext ( int context_id )

After delegating a thread context to a child process no longer should relate to the ThreadContext.

Definition at line 265 of file process.cc.

References contextIds, and warn.

Referenced by gem5::doClone().

◆ serialize()

void gem5::Process::serialize ( CheckpointOut & cp ) const

overridevirtual

Serialize an object.

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

Parameters

cp	Checkpoint state

Checkpoints for pipes, device drivers or sockets currently do not work. Need to come back and fix them at a later date.

Implements gem5::Serializable.

Definition at line 371 of file process.cc.

References fds, memState, pTable, gem5::EmulationPageTable::serialize(), and warn.

◆ syscall()

virtual void gem5::Process::syscall ( ThreadContext * tc )

inlinevirtual

Definition at line 81 of file process.hh.

References numSyscalls.

Referenced by gem5::SEWorkload::syscall().

◆ tgid()

uint64_t gem5::Process::tgid ( )

inline

Definition at line 91 of file process.hh.

References _tgid.

Referenced by gem5::exitImpl(), gem5::getpidFunc(), and gem5::tgkillFunc().

◆ tryLoaders()

Process * gem5::Process::tryLoaders	(	const ProcessParams &	params,
		loader::ObjectFile *	obj_file
	)

static

Definition at line 93 of file process.cc.

References gem5::VegaISA::p, and gem5::SimObject::params().

◆ uid()

uint64_t gem5::Process::uid ( )

inline

Definition at line 83 of file process.hh.

References _uid.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and gem5::getuidFunc().

◆ unserialize()

void gem5::Process::unserialize ( CheckpointIn & cp )

overridevirtual

Unserialize an object.

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

Parameters

cp	Checkpoint state

Checkpoints for pipes, device drivers or sockets currently do not work. Need to come back and fix them at a later date.

Implements gem5::Serializable.

Definition at line 386 of file process.cc.

References fds, memState, pTable, gem5::EmulationPageTable::unserialize(), and warn.

◆ updateBias()

void gem5::Process::updateBias ( )

Definition at line 457 of file process.cc.

References gem5::loader::ObjectFile::getInterpreter(), memState, mmapGrowsDown(), objFile, gem5::EmulationPageTable::pageSize(), pTable, and gem5::roundUp().

Referenced by init().

Member Data Documentation

◆ _egid

uint64_t gem5::Process::_egid

Definition at line 276 of file process.hh.

Referenced by egid().

◆ _euid

uint64_t gem5::Process::_euid

Definition at line 274 of file process.hh.

Referenced by euid().

◆ _gid

uint64_t gem5::Process::_gid

Definition at line 275 of file process.hh.

Referenced by gid().

◆ _pgid

uint64_t gem5::Process::_pgid

Definition at line 281 of file process.hh.

Referenced by pgid().

◆ _pid

uint64_t gem5::Process::_pid

Definition at line 279 of file process.hh.

Referenced by gem5::SparcProcess::initState(), pid(), and Process().

◆ _ppid

uint64_t gem5::Process::_ppid

Definition at line 280 of file process.hh.

Referenced by ppid().

◆ _tgid

uint64_t gem5::Process::_tgid

Definition at line 282 of file process.hh.

Referenced by clone(), Process(), and tgid().

◆ _uid

uint64_t gem5::Process::_uid

Definition at line 273 of file process.hh.

Referenced by uid().

◆ argv

std::vector<std::string> gem5::Process::argv

Definition at line 227 of file process.hh.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::RiscvProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and clone().

◆ childClearTID

uint64_t gem5::Process::childClearTID

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

Definition at line 296 of file process.hh.

Referenced by gem5::doClone(), and gem5::setTidAddressFunc().

◆ contextIds

◆ drivers

std::vector<EmulatedDriver *> gem5::Process::drivers

Definition at line 285 of file process.hh.

Referenced by findDriver().

◆ envp

std::vector<std::string> gem5::Process::envp

Definition at line 228 of file process.hh.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::RiscvProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), and clone().

◆ executable

std::string gem5::Process::executable

Definition at line 229 of file process.hh.

Referenced by progName().

◆ exitGroup

bool* gem5::Process::exitGroup

Definition at line 289 of file process.hh.

Referenced by clone(), and Process().

◆ fds

std::shared_ptr<FDArray> gem5::Process::fds

Definition at line 287 of file process.hh.

Referenced by clone(), drain(), gem5::execveFunc(), serialize(), and unserialize().

◆ hostCwd

std::string gem5::Process::hostCwd

Definition at line 267 of file process.hh.

Referenced by absolutePath().

◆ image

loader::MemoryImage gem5::Process::image

Definition at line 225 of file process.hh.

Referenced by gem5::PowerProcess::argsInit(), gem5::ArmProcess32::ArmProcess32(), gem5::ArmProcess64::ArmProcess64(), gem5::X86ISA::I386Process::I386Process(), initState(), gem5::MipsProcess::MipsProcess(), gem5::PowerProcess::PowerProcess(), Process(), gem5::RiscvProcess32::RiscvProcess32(), gem5::RiscvProcess64::RiscvProcess64(), gem5::Sparc32Process::Sparc32Process(), gem5::Sparc64Process::Sparc64Process(), and gem5::X86ISA::X86_64Process::X86_64Process().

◆ initVirtMem

std::unique_ptr<SETranslatingPortProxy> gem5::Process::initVirtMem

Definition at line 188 of file process.hh.

Referenced by gem5::Sparc32Process::argsInit(), gem5::Sparc64Process::argsInit(), gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::RiscvProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), gem5::PowerProcess::initState(), gem5::X86ISA::X86_64Process::initState(), gem5::X86ISA::I386Process::initState(), and initState().

◆ interpImage

loader::MemoryImage gem5::Process::interpImage

Definition at line 226 of file process.hh.

Referenced by gem5::PowerProcess::argsInit(), init(), and initState().

◆ kvmInSE

bool gem5::Process::kvmInSE

Definition at line 181 of file process.hh.

Referenced by gem5::X86ISA::EmuLinux::event(), gem5::X86ISA::I386Process::I386Process(), and gem5::X86ISA::X86_64Process::initState().

◆ memState

std::shared_ptr<MemState> gem5::Process::memState

Definition at line 290 of file process.hh.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::RiscvProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), gem5::ArmProcess32::ArmProcess32(), gem5::ArmProcess64::ArmProcess64(), clone(), fixupFault(), gem5::X86ISA::I386Process::I386Process(), gem5::X86ISA::X86_64Process::initState(), gem5::X86ISA::I386Process::initState(), gem5::GPUComputeDriver::ioctl(), gem5::MipsProcess::MipsProcess(), gem5::Shader::mmap(), gem5::GPUComputeDriver::mmap(), gem5::PowerProcess::PowerProcess(), gem5::Linux::procSelfMaps(), gem5::RiscvProcess32::RiscvProcess32(), gem5::RiscvProcess64::RiscvProcess64(), serialize(), gem5::Sparc32Process::Sparc32Process(), gem5::Sparc64Process::Sparc64Process(), unserialize(), updateBias(), and gem5::X86ISA::X86_64Process::X86_64Process().

◆ numSyscalls

statistics::Scalar gem5::Process::numSyscalls

Definition at line 305 of file process.hh.

Referenced by syscall().

◆ objFile

loader::ObjectFile* gem5::Process::objFile

Definition at line 224 of file process.hh.

Referenced by gem5::MipsProcess::argsInit(), gem5::PowerProcess::argsInit(), gem5::RiscvProcess::argsInit(), gem5::SparcProcess::argsInit(), gem5::ArmProcess::argsInit(), gem5::X86ISA::X86Process::argsInit(), getBias(), getInterpreter(), getStartPC(), init(), gem5::PowerProcess::initState(), Process(), and updateBias().

◆ pTable

◆ release

std::string gem5::Process::release

Definition at line 270 of file process.hh.

◆ seWorkload

SEWorkload* gem5::Process::seWorkload

Definition at line 176 of file process.hh.

Referenced by allocateMem(), gem5::X86ISA::X86_64Process::initState(), Process(), gem5::Linux::procMeminfo(), and replicatePage().

◆ sigchld

bool* gem5::Process::sigchld

Definition at line 299 of file process.hh.

Referenced by gem5::doClone(), gem5::execveFunc(), and Process().

◆ system

System* gem5::Process::system

◆ tgtCwd

std::string gem5::Process::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.

open, chdir).

The tgt member and host member may differ if the path for the current working directory is redirected to point to a different location (i.e. cd /proc should point to '/m5out/fs/proc' instead of '/proc').

Definition at line 266 of file process.hh.

Referenced by absolutePath(), and gem5::Linux::etcPasswd().

◆ useArchPT

bool gem5::Process::useArchPT

Definition at line 179 of file process.hh.

◆ useForClone

bool gem5::Process::useForClone

Definition at line 183 of file process.hh.

Referenced by gem5::doClone(), and gem5::X86ISA::X86_64Process::initState().

◆ vforkContexts

std::vector<ContextID> gem5::Process::vforkContexts

Definition at line 302 of file process.hh.

Referenced by clone().

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

sim/process.hh
sim/process.cc

Classes

Public Member Functions

Static Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Process()

Member Function Documentation

◆ absolutePath()

◆ allocateMem()

◆ assignThreadContext()

◆ checkPathRedirect()

◆ clone()

◆ drain()

◆ egid()

◆ euid()

◆ findDriver()

◆ fixupFault()

◆ getBias()

◆ getInterpreter()

◆ getStartPC()

◆ gid()

◆ init()

◆ initState()

◆ map()

◆ mmapGrowsDown()

◆ pgid() [1/2]

◆ pgid() [2/2]

◆ pid()

◆ ppid()

◆ progName()

◆ replicatePage()

◆ revokeThreadContext()

◆ serialize()

◆ syscall()

◆ tgid()

◆ tryLoaders()

◆ uid()

◆ unserialize()

◆ updateBias()

Member Data Documentation

◆ _egid

◆ _euid

◆ _gid

◆ _pgid

◆ _pid

◆ _ppid

◆ _tgid

◆ _uid

◆ argv

◆ childClearTID

◆ contextIds

◆ drivers

◆ envp

◆ executable

◆ exitGroup

◆ fds

◆ hostCwd

◆ image

◆ initVirtMem

◆ interpImage

◆ kvmInSE

◆ memState

◆ numSyscalls

◆ objFile

◆ pTable

◆ release

◆ seWorkload

◆ sigchld

◆ system

◆ tgtCwd

◆ useArchPT

◆ useForClone

◆ vforkContexts