HostedSyscallManager Class Reference

#include <SyscallManager.h>

Inheritance diagram for HostedSyscallManager:

Collaboration diagram for HostedSyscallManager:

Public Member Functions
virtual bool	registerSyscallHandler (Service_t Service, SyscallHandler *pHandler, Registration &registration, FastEntry entry=nullptr)
uintptr_t	syscall (Service_t service, uintptr_t function, uintptr_t p1, uintptr_t p2, uintptr_t p3, uintptr_t p4, uintptr_t p5)
Public Member Functions inherited from SyscallManager
EXPORTED_PUBLIC bool	requestThreadExit ()
EXPORTED_PUBLIC bool	requestProcessExit (int status)
EXPORTED_PUBLIC bool	requestEventReturn ()
EXPORTED_PUBLIC bool	requestEventStatePop ()
EXPORTED_PUBLIC bool	requestStateRestore (const ProcessorState &state)
EXPORTED_PUBLIC bool	requestUserJump (uintptr_t instructionPointer, uintptr_t stackPointer)
EXPORTED_PUBLIC bool	requestReboot (Machine::ShutdownType type=Machine::ShutdownType::Restart)

Static Public Member Functions
static HostedSyscallManager &	instance ()
static void	initialiseProcessor () INITIALISATION_ONLY
Static Public Member Functions inherited from SyscallManager
static EXPORTED_PUBLIC SyscallManager &	instance ()

Private Member Functions
	HostedSyscallManager () INITIALISATION_ONLY
	HostedSyscallManager (const HostedSyscallManager &)
HostedSyscallManager &	operator= (const HostedSyscallManager &)
virtual	~HostedSyscallManager ()

Static Private Member Functions
static void	syscall (SyscallState &syscallState)

Static Private Attributes
static HostedSyscallManager	m_Instance

Additional Inherited Members
Public Types inherited from SyscallManager
enum	PostSyscallActionKind {   NoPostSyscallAction , TerminateCurrentThread , ExitCurrentProcess , ReturnFromEvent ,   PopEventState , RestoreProcessorState , JumpToUserspace , RebootSystem }
using	FastEntry = uintptr_t(*)(SyscallHandler *, SyscallState &)
Protected Member Functions inherited from SyscallManager
bool	registerHandler (Service_t service, SyscallHandler *pHandler, Registration &registration, FastEntry entry=nullptr)
ALWAYS_INLINE uintptr_t	dispatchHandler (const HandlerLease &lease, SyscallState &state) const
bool	closeHandler (Registration &registration)
bool	unregisterHandler (Registration &registration)
bool	acquireHandler (Service_t service, HandlerLease &lease, PostSyscallAction &action)
	SyscallManager ()
virtual	~SyscallManager ()

Detailed Description

The syscall manager on x64 processors

Definition at line 32 of file kernel/core/processor/hosted/SyscallManager.h.

Constructor & Destructor Documentation

HostedSyscallManager() [1/2]

HostedSyscallManager::HostedSyscallManager ( )

private

The constructor

Definition at line 211 of file hosted/SyscallManager.cc.

HostedSyscallManager() [2/2]

HostedSyscallManager::HostedSyscallManager ( const HostedSyscallManager &  )

private

Copy constructor

Note

NOT implemented

~HostedSyscallManager()

HostedSyscallManager::~HostedSyscallManager ( )

privatevirtual

The destructor

Definition at line 213 of file hosted/SyscallManager.cc.

Member Function Documentation

initialiseProcessor()

void HostedSyscallManager::initialiseProcessor ( )

static

Initialises this processors syscall handling

Note

This should only be called from Processor::initialise1() and Multiprocessor::applicationProcessorStartup()

Definition at line 209 of file hosted/SyscallManager.cc.

instance()

static HostedSyscallManager & HostedSyscallManager::instance ( )

inlinestatic

Get the HostedSyscallManager class instance

Returns

instance of the HostedSyscallManager class

Definition at line 36 of file kernel/core/processor/hosted/SyscallManager.h.

References m_Instance.

operator=()

HostedSyscallManager & HostedSyscallManager::operator= ( const HostedSyscallManager &  )

private

Assignment operator

Note

NOT implemented

registerSyscallHandler()

bool HostedSyscallManager::registerSyscallHandler ( Service_t  Service, SyscallHandler *  pHandler, Registration &  registration, FastEntry  entry = nullptr  )

virtual

Register a syscall handler

Parameters

[in]	Service	the service number you want to register
[in]	pHandler	the interrupt handler
[in]	entry	optional nonvirtual implementation of the same syscall contract

Returns

true, if successfully registered, false otherwise

Implements SyscallManager.

Definition at line 40 of file hosted/SyscallManager.cc.

syscall() [1/2]

uintptr_t HostedSyscallManager::syscall ( Service_t  service, uintptr_t  function, uintptr_t  p1, uintptr_t  p2, uintptr_t  p3, uintptr_t  p4, uintptr_t  p5  )

virtual

Called to execute a syscall.

Implements SyscallManager.

Definition at line 191 of file hosted/SyscallManager.cc.

References syscall().

Referenced by syscall().

Here is the caller graph for this function:

syscall() [2/2]

void HostedSyscallManager::syscall ( SyscallState &  syscallState )

staticprivate

Called when a syscall was called

Parameters

[in]

syscallState

reference to the usermode state before the syscall

Definition at line 45 of file hosted/SyscallManager.cc.

References TimeTracker::attributeSyscall(), Thread::Continue, Thread::currentTimeAccountingMode(), PerProcessorScheduler::eventHandlerReturned(), Thread::Exit, TimeTracker::finish(), TimeTracker::finishInKernel(), Thread::getErrno(), Thread::getUnwindState(), ProcessorBase::information(), ProcessorBase::jumpUser(), LIKELY, m_Instance, PerProcessorScheduler::serviceProcessStopAtUserReturn(), PerProcessorScheduler::serviceUserReturnWork(), Thread::setErrno(), ProcessorBase::setInterrupts(), Thread::takeDeferredProcessExit(), and Thread::TerminateThread.

Member Data Documentation

m_Instance

HostedSyscallManager HostedSyscallManager::m_Instance

staticprivate

The instance of the syscall manager

Definition at line 76 of file kernel/core/processor/hosted/SyscallManager.h.

Referenced by instance(), and syscall().

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

• kernel/core/processor/hosted/SyscallManager.h
• hosted/SyscallManager.cc