Manages communication with the inferior (debugee) process. More...

#include <ProcessMonitor.h>

Collaboration diagram for ProcessMonitor:

[legend]

Classes
struct	AttachArgs

struct	LaunchArgs

struct	OperationArgs

Public Member Functions
	ProcessMonitor (ProcessFreeBSD process, lldb_private::Module module, char const *argv[], lldb_private::Environment env, const lldb_private::FileSpec &stdin_file_spec, const lldb_private::FileSpec &stdout_file_spec, const lldb_private::FileSpec &stderr_file_spec, const lldb_private::FileSpec &working_dir, const lldb_private::ProcessLaunchInfo &launch_info, lldb_private::Status &error)
	Launches an inferior process ready for debugging. More...

	ProcessMonitor (ProcessFreeBSD *process, lldb::pid_t pid, lldb_private::Status &error)

	~ProcessMonitor ()

lldb::pid_t	GetPID () const
	Provides the process number of debugee. More...

ProcessFreeBSD &	GetProcess ()
	Returns the process associated with this ProcessMonitor. More...

int	GetTerminalFD () const
	Returns a file descriptor to the controlling terminal of the inferior process. More...

size_t	ReadMemory (lldb::addr_t vm_addr, void *buf, size_t size, lldb_private::Status &error)
	Reads `size` bytes from address in the inferior process address space. More...

size_t	WriteMemory (lldb::addr_t vm_addr, const void *buf, size_t size, lldb_private::Status &error)
	Writes `size` bytes from address `vm_adder` in the inferior process address space. More...

bool	ReadRegisterValue (lldb::tid_t tid, unsigned offset, const char *reg_name, unsigned size, lldb_private::RegisterValue &value)
	Reads the contents from the register identified by the given (architecture dependent) offset. More...

bool	WriteRegisterValue (lldb::tid_t tid, unsigned offset, const char *reg_name, const lldb_private::RegisterValue &value)
	Writes the given value to the register identified by the given (architecture dependent) offset. More...

bool	ReadDebugRegisterValue (lldb::tid_t tid, unsigned offset, const char *reg_name, unsigned size, lldb_private::RegisterValue &value)
	Reads the contents from the debug register identified by the given (architecture dependent) offset. More...

bool	WriteDebugRegisterValue (lldb::tid_t tid, unsigned offset, const char *reg_name, const lldb_private::RegisterValue &value)
	Writes the given value to the debug register identified by the given (architecture dependent) offset. More...

bool	ReadGPR (lldb::tid_t tid, void *buf, size_t buf_size)
	Reads all general purpose registers into the specified buffer. More...

bool	ReadFPR (lldb::tid_t tid, void *buf, size_t buf_size)
	Reads all floating point registers into the specified buffer. More...

bool	ReadRegisterSet (lldb::tid_t tid, void *buf, size_t buf_size, unsigned int regset)
	Reads the specified register set into the specified buffer. More...

bool	WriteGPR (lldb::tid_t tid, void *buf, size_t buf_size)
	Writes all general purpose registers into the specified buffer. More...

bool	WriteFPR (lldb::tid_t tid, void *buf, size_t buf_size)
	Writes all floating point registers into the specified buffer. More...

bool	WriteRegisterSet (lldb::tid_t tid, void *buf, size_t buf_size, unsigned int regset)
	Writes the specified register set into the specified buffer. More...

bool	ReadThreadPointer (lldb::tid_t tid, lldb::addr_t &value)
	Reads the value of the thread-specific pointer for a given thread ID. More...

size_t	GetCurrentThreadIDs (std::vector< lldb::tid_t > &thread_ids)
	Returns current thread IDs in process. More...

bool	GetLwpInfo (lldb::tid_t tid, void *lwpinfo, int &error_no)
	Writes a ptrace_lwpinfo structure corresponding to the given thread ID to the memory region pointed to by `lwpinfo`. More...

bool	ThreadSuspend (lldb::tid_t tid, bool suspend)
	Suspends or unsuspends a thread prior to process resume or step. More...

bool	GetEventMessage (lldb::tid_t tid, unsigned long *message)
	Writes the raw event message code (vis-a-vis PTRACE_GETEVENTMSG) corresponding to the given thread IDto the memory pointed to by `message`. More...

bool	Resume (lldb::tid_t unused, uint32_t signo)
	Resumes the process. More...

bool	SingleStep (lldb::tid_t unused, uint32_t signo)
	Single steps the process. More...

bool	Kill ()
	Terminate the traced process. More...

lldb_private::Status	Detach (lldb::tid_t tid)

void	StopMonitor ()

bool	WaitForInitialTIDStop (lldb::tid_t tid)

Private Member Functions
void	StartLaunchOpThread (LaunchArgs *args, lldb_private::Status &error)

void	StartAttachOpThread (AttachArgs *args, lldb_private::Status &error)

void	DoOperation (Operation *op)

void	StopMonitoringChildProcess ()
	Stops the child monitor thread. More...

void	StopOpThread ()
	Stops the operation thread used to attach/launch a process. More...

Static Private Member Functions
static void *	LaunchOpThread (void *arg)

static bool	Launch (LaunchArgs *args)

static void *	AttachOpThread (void *args)

static void	Attach (AttachArgs *args)

static void	ServeOperation (OperationArgs *args)

static bool	DupDescriptor (const lldb_private::FileSpec &file_spec, int fd, int flags)

static bool	MonitorCallback (ProcessMonitor *monitor, lldb::pid_t pid, bool exited, int signal, int status)

static ProcessMessage	MonitorSIGTRAP (ProcessMonitor monitor, const siginfo_t info, lldb::pid_t pid)

static ProcessMessage	MonitorSignal (ProcessMonitor monitor, const siginfo_t info, lldb::pid_t pid)

Private Attributes
ProcessFreeBSD *	m_process

llvm::Optional< lldb_private::HostThread >	m_operation_thread

llvm::Optional< lldb_private::HostThread >	m_monitor_thread

lldb::pid_t	m_pid

int	m_terminal_fd

Operation *	m_operation

std::mutex	m_operation_mutex

sem_t	m_operation_pending

sem_t	m_operation_done

Detailed Description

Manages communication with the inferior (debugee) process.

Upon construction, this class prepares and launches an inferior process for debugging.

Changes in the inferior process state are propagated to the associated ProcessFreeBSD instance by calling ProcessFreeBSD::SendMessage with the appropriate ProcessMessage events.

A purposely minimal set of operations are provided to interrogate and change the inferior process state.

Definition at line 42 of file ProcessMonitor.h.

Constructor & Destructor Documentation

◆ ProcessMonitor() [1/2]

ProcessMonitor::ProcessMonitor	(	ProcessFreeBSD *	process,
		lldb_private::Module *	module,
		char const *	argv[],
		lldb_private::Environment	env,
		const lldb_private::FileSpec &	stdin_file_spec,
		const lldb_private::FileSpec &	stdout_file_spec,
		const lldb_private::FileSpec &	stderr_file_spec,
		const lldb_private::FileSpec &	working_dir,
		const lldb_private::ProcessLaunchInfo &	launch_info,
		lldb_private::Status &	error
	)

Launches an inferior process ready for debugging.

The basic design of the ProcessMonitor is built around two threads.

Forms the implementation of Process::DoLaunch.

One thread (

See also: SignalThread) simply blocks on a call to waitpid() looking for changes in the debugee state. When a change is detected a ProcessMessage is sent to the associated ProcessFreeBSD instance. This thread "drives" state changes in the debugger.

The second thread (

See also: OperationThread) is responsible for two things 1) launching or attaching to the inferior process, and then 2) servicing operations such as register reads/writes, stepping, etc. See the comments on the Operation class for more info as to why this is needed.

Definition at line 698 of file ProcessMonitor.cpp.

References error(), GetPID(), m_monitor_thread, m_operation_done, m_operation_pending, MonitorCallback(), lldb_private::Status::SetErrorString(), lldb_private::Status::SetErrorToErrno(), lldb_private::Status::SetErrorToGenericError(), StartLaunchOpThread(), StopOpThread(), and lldb_private::Status::Success().

◆ ProcessMonitor() [2/2]

ProcessMonitor::ProcessMonitor	(	ProcessFreeBSD *	process,
		lldb::pid_t	pid,
		lldb_private::Status &	error
	)

Definition at line 745 of file ProcessMonitor.cpp.

References error(), GetPID(), m_monitor_thread, m_operation_done, m_operation_pending, MonitorCallback(), lldb_private::Status::SetErrorString(), lldb_private::Status::SetErrorToErrno(), lldb_private::Status::SetErrorToGenericError(), StartAttachOpThread(), StopOpThread(), and lldb_private::Status::Success().

◆ ~ProcessMonitor()

ProcessMonitor::~ProcessMonitor ( )

Definition at line 785 of file ProcessMonitor.cpp.

References StopMonitor().

Member Function Documentation

◆ Attach()

void ProcessMonitor::Attach ( AttachArgs * args )

staticprivate

Definition at line 981 of file ProcessMonitor.cpp.

References ProcessMessage::Attach(), GetProcess(), ProcessMonitor::OperationArgs::m_error, ProcessMonitor::OperationArgs::m_monitor, ProcessMonitor::AttachArgs::m_pid, NULL, PTRACE, ProcessFreeBSD::SendMessage(), lldb_private::Status::SetErrorString(), lldb_private::Status::SetErrorToErrno(), and lldb_private::Status::SetErrorToGenericError().

Referenced by AttachOpThread().

◆ AttachOpThread()

void * ProcessMonitor::AttachOpThread ( void * args )

staticprivate

Definition at line 972 of file ProcessMonitor.cpp.

References Attach(), NULL, and ServeOperation().

Referenced by StartAttachOpThread().

◆ Detach()

lldb_private::Status ProcessMonitor::Detach ( lldb::tid_t tid )

Definition at line 1360 of file ProcessMonitor.cpp.

References DoOperation(), error(), and LLDB_INVALID_THREAD_ID.

◆ DoOperation()

void ProcessMonitor::DoOperation ( Operation * op )

private

Definition at line 1198 of file ProcessMonitor.cpp.

References m_operation, m_operation_done, m_operation_mutex, and m_operation_pending.

Referenced by Detach(), GetEventMessage(), GetLwpInfo(), Kill(), ReadDebugRegisterValue(), ReadFPR(), ReadGPR(), ReadMemory(), ReadRegisterValue(), Resume(), SingleStep(), ThreadSuspend(), WriteDebugRegisterValue(), WriteFPR(), WriteGPR(), WriteMemory(), and WriteRegisterValue().

◆ DupDescriptor()

bool ProcessMonitor::DupDescriptor	(	const lldb_private::FileSpec &	file_spec,
		int	fd,
		int	flags
	)

staticprivate

Definition at line 1369 of file ProcessMonitor.cpp.

References lldb_private::FileSpec::GetCString().

Referenced by Launch().

◆ GetCurrentThreadIDs()

size_t ProcessMonitor::GetCurrentThreadIDs ( std::vector< lldb::tid_t > & thread_ids )

Returns current thread IDs in process.

Definition at line 1009 of file ProcessMonitor.cpp.

References m_pid, NULL, and PTRACE.

◆ GetEventMessage()

bool ProcessMonitor::GetEventMessage	(	lldb::tid_t	tid,
		unsigned long *	message
	)

Writes the raw event message code (vis-a-vis PTRACE_GETEVENTMSG) corresponding to the given thread IDto the memory pointed to by message.

Definition at line 1353 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by MonitorSIGTRAP().

◆ GetLwpInfo()

bool ProcessMonitor::GetLwpInfo	(	lldb::tid_t	tid,
		void *	lwpinfo,
		int &	error_no
	)

Writes a ptrace_lwpinfo structure corresponding to the given thread ID to the memory region pointed to by lwpinfo.

Definition at line 1338 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by MonitorCallback().

◆ GetPID()

lldb::pid_t ProcessMonitor::GetPID ( ) const

inline

Provides the process number of debugee.

Definition at line 61 of file ProcessMonitor.h.

Referenced by ProcessFreeBSD::DoLaunch(), ReadOperation::Execute(), WriteOperation::Execute(), ResumeOperation::Execute(), SingleStepOperation::Execute(), KillOperation::Execute(), DetachOperation::Execute(), ProcessMonitor(), and Resume().

◆ GetProcess()

ProcessFreeBSD& ProcessMonitor::GetProcess ( )

inline

Returns the process associated with this ProcessMonitor.

Definition at line 64 of file ProcessMonitor.h.

Referenced by Attach(), and Launch().

◆ GetTerminalFD()

int ProcessMonitor::GetTerminalFD ( ) const

inline

Returns a file descriptor to the controlling terminal of the inferior process.

Reads from this file descriptor yield both the standard output and standard error of this debugee. Even if stderr and stdout were redirected on launch it may still happen that data is available on this descriptor (if the inferior process opens /dev/tty, for example). This descriptor is closed after a call to StopMonitor().

If this monitor was attached to an existing process this method returns -1.

Definition at line 77 of file ProcessMonitor.h.

Referenced by ProcessFreeBSD::DoAttachToProcessWithID(), ProcessFreeBSD::DoLaunch(), and ProcessFreeBSD::PutSTDIN().

◆ Kill()

bool ProcessMonitor::Kill ( )

Terminate the traced process.

Definition at line 1331 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by ProcessFreeBSD::DoDestroy().

◆ Launch()

bool ProcessMonitor::Launch ( LaunchArgs * args )

staticprivate

Definition at line 814 of file ProcessMonitor.cpp.

References ProcessMessage::Attach(), lldb_private::PseudoTerminal::CloseSecondaryFileDescriptor(), DupDescriptor(), EnsureFDFlags(), lldb_private::PseudoTerminal::Fork(), lldb_private::FileSpec::GetCString(), GetProcess(), ProcessMonitor::LaunchArgs::m_argv, ProcessMonitor::LaunchArgs::m_env, ProcessMonitor::OperationArgs::m_error, ProcessMonitor::OperationArgs::m_monitor, m_pid, ProcessMonitor::LaunchArgs::m_stderr_file_spec, ProcessMonitor::LaunchArgs::m_stdin_file_spec, ProcessMonitor::LaunchArgs::m_stdout_file_spec, m_terminal_fd, ProcessMonitor::LaunchArgs::m_working_dir, NULL, O_NONBLOCK, PTRACE, lldb_private::PseudoTerminal::ReleasePrimaryFileDescriptor(), ProcessFreeBSD::SendMessage(), lldb_private::Status::SetErrorString(), lldb_private::Status::SetErrorToErrno(), lldb_private::Status::SetErrorToGenericError(), and lldb_private::Status::Success().

Referenced by LaunchOpThread().

◆ LaunchOpThread()

void * ProcessMonitor::LaunchOpThread ( void * arg )

staticprivate

Definition at line 802 of file ProcessMonitor.cpp.

References Launch(), ProcessMonitor::OperationArgs::m_semaphore, NULL, and ServeOperation().

Referenced by StartLaunchOpThread().

◆ MonitorCallback()

bool ProcessMonitor::MonitorCallback	(	ProcessMonitor *	monitor,
		lldb::pid_t	pid,
		bool	exited,
		int	signal,
		int	status
	)

staticprivate

Definition at line 1030 of file ProcessMonitor.cpp.

References ProcessMessage::eExitMessage, ProcessMessage::Exit(), lldb_private::UserID::GetID(), ProcessMessage::GetKind(), lldb_private::GetLogIfAllCategoriesSet(), GetLwpInfo(), LLDB_LOGF, m_process, MonitorSignal(), MonitorSIGTRAP(), POSIX_LOG_PROCESS, ProcessFreeBSD::SendMessage(), and SIGTRAP.

Referenced by ProcessMonitor().

◆ MonitorSignal()

ProcessMessage ProcessMonitor::MonitorSignal	(	ProcessMonitor *	monitor,
		const siginfo_t *	info,
		lldb::pid_t	pid
	)

staticprivate

Definition at line 1132 of file ProcessMonitor.cpp.

References ProcessMessage::Crash(), eInvalidCrashReason, GetCrashReason(), lldb_private::GetLogIfAllCategoriesSet(), lldb_private::Process::GetUnixSignals(), LLDB_LOGF, m_process, POSIX_LOG_PROCESS, ProcessMessage::Signal(), and ProcessMessage::SignalDelivered().

Referenced by MonitorCallback().

◆ MonitorSIGTRAP()

ProcessMessage ProcessMonitor::MonitorSIGTRAP	(	ProcessMonitor *	monitor,
		const siginfo_t *	info,
		lldb::pid_t	pid
	)

staticprivate

Definition at line 1069 of file ProcessMonitor.cpp.

References ProcessMessage::Break(), GetEventMessage(), lldb_private::GetLogIfAllCategoriesSet(), ProcessFreeBSD::IsSoftwareStepBreakpoint(), ProcessMessage::Limbo(), LLDB_LOGF, m_process, POSIX_LOG_PROCESS, SIGTRAP, and ProcessMessage::Trace().

Referenced by MonitorCallback().

◆ ReadDebugRegisterValue()

bool ProcessMonitor::ReadDebugRegisterValue	(	lldb::tid_t	tid,
		unsigned	offset,
		const char *	reg_name,
		unsigned	size,
		lldb_private::RegisterValue &	value
	)

Reads the contents from the debug register identified by the given (architecture dependent) offset.

This method is provided for use by RegisterContextFreeBSD derivatives.

Definition at line 1244 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_x86_64::ReadRegister().

◆ ReadFPR()

bool ProcessMonitor::ReadFPR	(	lldb::tid_t	tid,
		void *	buf,
		size_t	buf_size
	)

Reads all floating point registers into the specified buffer.

Definition at line 1269 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_arm::ReadFPR(), RegisterContextPOSIXProcessMonitor_arm64::ReadFPR(), RegisterContextPOSIXProcessMonitor_x86_64::ReadFPR(), and RegisterContextPOSIXProcessMonitor_powerpc::ReadFPR().

◆ ReadGPR()

bool ProcessMonitor::ReadGPR	(	lldb::tid_t	tid,
		void *	buf,
		size_t	buf_size
	)

Reads all general purpose registers into the specified buffer.

Definition at line 1262 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_arm::ReadGPR(), RegisterContextPOSIXProcessMonitor_arm64::ReadGPR(), RegisterContextPOSIXProcessMonitor_x86_64::ReadGPR(), RegisterContextPOSIXProcessMonitor_mips64::ReadGPR(), and RegisterContextPOSIXProcessMonitor_powerpc::ReadGPR().

◆ ReadMemory()

size_t ProcessMonitor::ReadMemory	(	lldb::addr_t	vm_addr,
		void *	buf,
		size_t	size,
		lldb_private::Status &	error
	)

Reads size bytes from address in the inferior process address space.

This method is provided to implement Process::DoReadMemory.

Definition at line 1210 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by ProcessFreeBSD::DoReadMemory().

◆ ReadRegisterSet()

bool ProcessMonitor::ReadRegisterSet	(	lldb::tid_t	tid,
		void *	buf,
		size_t	buf_size,
		unsigned int	regset
	)

Reads the specified register set into the specified buffer.

This method is provided for use by RegisterContextFreeBSD derivatives.

Definition at line 1276 of file ProcessMonitor.cpp.

Referenced by RegisterContextPOSIXProcessMonitor_x86_64::ReadFPR().

◆ ReadRegisterValue()

bool ProcessMonitor::ReadRegisterValue	(	lldb::tid_t	tid,
		unsigned	offset,
		const char *	reg_name,
		unsigned	size,
		lldb_private::RegisterValue &	value
	)

Reads the contents from the register identified by the given (architecture dependent) offset.

This method is provided for use by RegisterContextFreeBSD derivatives.

Definition at line 1226 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_arm::ReadRegister(), RegisterContextPOSIXProcessMonitor_arm64::ReadRegister(), RegisterContextPOSIXProcessMonitor_x86_64::ReadRegister(), RegisterContextPOSIXProcessMonitor_mips64::ReadRegister(), and RegisterContextPOSIXProcessMonitor_powerpc::ReadRegister().

◆ ReadThreadPointer()

bool ProcessMonitor::ReadThreadPointer	(	lldb::tid_t	tid,
		lldb::addr_t &	value
	)

Reads the value of the thread-specific pointer for a given thread ID.

Definition at line 1300 of file ProcessMonitor.cpp.

Referenced by FreeBSDThread::GetThreadPointer().

◆ Resume()

bool ProcessMonitor::Resume	(	lldb::tid_t	unused,
		uint32_t	signo
	)

Resumes the process.

If signo is anything but LLDB_INVALID_SIGNAL_NUMBER, deliver that signal to the process.

Definition at line 1304 of file ProcessMonitor.cpp.

References DoOperation(), lldb_private::GetLogIfAllCategoriesSet(), GetPID(), lldb_private::Process::GetUnixSignals(), LLDB_LOGF, m_process, and POSIX_LOG_PROCESS.

Referenced by FreeBSDThread::Resume().

◆ ServeOperation()

void ProcessMonitor::ServeOperation ( OperationArgs * args )

staticprivate

Definition at line 1180 of file ProcessMonitor.cpp.

References Operation::Execute(), ProcessMonitor::OperationArgs::m_monitor, m_operation, m_operation_done, m_operation_pending, and ProcessMonitor::OperationArgs::m_semaphore.

Referenced by AttachOpThread(), and LaunchOpThread().

◆ SingleStep()

bool ProcessMonitor::SingleStep	(	lldb::tid_t	unused,
		uint32_t	signo
	)

Single steps the process.

If signo is anything but LLDB_INVALID_SIGNAL_NUMBER, deliver that signal to the process.

Definition at line 1324 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by FreeBSDThread::Resume().

◆ StartAttachOpThread()

void ProcessMonitor::StartAttachOpThread	(	AttachArgs *	args,
		lldb_private::Status &	error
	)

private

Definition at line 957 of file ProcessMonitor.cpp.

References AttachOpThread(), and m_operation_thread.

Referenced by ProcessMonitor().

◆ StartLaunchOpThread()

void ProcessMonitor::StartLaunchOpThread	(	LaunchArgs *	args,
		lldb_private::Status &	error
	)

private

Definition at line 788 of file ProcessMonitor.cpp.

References LaunchOpThread(), and m_operation_thread.

Referenced by ProcessMonitor().

◆ StopMonitor()

void ProcessMonitor::StopMonitor ( )

Definition at line 1391 of file ProcessMonitor.cpp.

References m_operation_done, m_operation_pending, m_terminal_fd, StopMonitoringChildProcess(), and StopOpThread().

Referenced by ProcessFreeBSD::Finalize(), and ~ProcessMonitor().

◆ StopMonitoringChildProcess()

void ProcessMonitor::StopMonitoringChildProcess ( )

private

Stops the child monitor thread.

Definition at line 1383 of file ProcessMonitor.cpp.

References m_monitor_thread.

Referenced by StopMonitor().

◆ StopOpThread()

void ProcessMonitor::StopOpThread ( )

private

Stops the operation thread used to attach/launch a process.

Definition at line 1421 of file ProcessMonitor.cpp.

References m_operation_thread.

Referenced by ProcessMonitor(), and StopMonitor().

◆ ThreadSuspend()

bool ProcessMonitor::ThreadSuspend	(	lldb::tid_t	tid,
		bool	suspend
	)

Suspends or unsuspends a thread prior to process resume or step.

Definition at line 1346 of file ProcessMonitor.cpp.

References DoOperation().

◆ WaitForInitialTIDStop()

bool ProcessMonitor::WaitForInitialTIDStop ( lldb::tid_t tid )

Definition at line 1419 of file ProcessMonitor.cpp.

◆ WriteDebugRegisterValue()

bool ProcessMonitor::WriteDebugRegisterValue	(	lldb::tid_t	tid,
		unsigned	offset,
		const char *	reg_name,
		const lldb_private::RegisterValue &	value
	)

Writes the given value to the debug register identified by the given (architecture dependent) offset.

This method is provided for use by RegisterContextFreeBSD derivatives.

Definition at line 1253 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_x86_64::WriteRegister().

◆ WriteFPR()

bool ProcessMonitor::WriteFPR	(	lldb::tid_t	tid,
		void *	buf,
		size_t	buf_size
	)

Writes all floating point registers into the specified buffer.

Definition at line 1288 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_arm::WriteFPR(), RegisterContextPOSIXProcessMonitor_arm64::WriteFPR(), RegisterContextPOSIXProcessMonitor_x86_64::WriteFPR(), and RegisterContextPOSIXProcessMonitor_powerpc::WriteFPR().

◆ WriteGPR()

bool ProcessMonitor::WriteGPR	(	lldb::tid_t	tid,
		void *	buf,
		size_t	buf_size
	)

Writes all general purpose registers into the specified buffer.

Definition at line 1281 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_arm::WriteGPR(), RegisterContextPOSIXProcessMonitor_arm64::WriteGPR(), RegisterContextPOSIXProcessMonitor_x86_64::WriteGPR(), RegisterContextPOSIXProcessMonitor_mips64::WriteGPR(), and RegisterContextPOSIXProcessMonitor_powerpc::WriteGPR().

◆ WriteMemory()

size_t ProcessMonitor::WriteMemory	(	lldb::addr_t	vm_addr,
		const void *	buf,
		size_t	size,
		lldb_private::Status &	error
	)

Writes size bytes from address vm_adder in the inferior process address space.

This method is provided to implement Process::DoWriteMemory.

Definition at line 1218 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by ProcessFreeBSD::DoWriteMemory().

◆ WriteRegisterSet()

bool ProcessMonitor::WriteRegisterSet	(	lldb::tid_t	tid,
		void *	buf,
		size_t	buf_size,
		unsigned int	regset
	)

Writes the specified register set into the specified buffer.

This method is provided for use by RegisterContextFreeBSD derivatives.

Definition at line 1295 of file ProcessMonitor.cpp.

Referenced by RegisterContextPOSIXProcessMonitor_x86_64::WriteFPR().

◆ WriteRegisterValue()

bool ProcessMonitor::WriteRegisterValue	(	lldb::tid_t	tid,
		unsigned	offset,
		const char *	reg_name,
		const lldb_private::RegisterValue &	value
	)

Writes the given value to the register identified by the given (architecture dependent) offset.

This method is provided for use by RegisterContextFreeBSD derivatives.

Definition at line 1235 of file ProcessMonitor.cpp.

References DoOperation().

Referenced by RegisterContextPOSIXProcessMonitor_arm::WriteRegister(), RegisterContextPOSIXProcessMonitor_arm64::WriteRegister(), RegisterContextPOSIXProcessMonitor_x86_64::WriteRegister(), RegisterContextPOSIXProcessMonitor_mips64::WriteRegister(), and RegisterContextPOSIXProcessMonitor_powerpc::WriteRegister().

Member Data Documentation

◆ m_monitor_thread

llvm::Optional<lldb_private::HostThread> ProcessMonitor::m_monitor_thread

private

Definition at line 187 of file ProcessMonitor.h.

Referenced by ProcessMonitor(), and StopMonitoringChildProcess().

◆ m_operation

Operation* ProcessMonitor::m_operation

private

Definition at line 193 of file ProcessMonitor.h.

Referenced by DoOperation(), and ServeOperation().

◆ m_operation_done

sem_t ProcessMonitor::m_operation_done

private

Definition at line 199 of file ProcessMonitor.h.

Referenced by DoOperation(), ProcessMonitor(), ServeOperation(), and StopMonitor().

◆ m_operation_mutex

std::mutex ProcessMonitor::m_operation_mutex

private

Definition at line 194 of file ProcessMonitor.h.

Referenced by DoOperation().

◆ m_operation_pending

sem_t ProcessMonitor::m_operation_pending

private

Definition at line 198 of file ProcessMonitor.h.

Referenced by DoOperation(), ProcessMonitor(), ServeOperation(), and StopMonitor().

◆ m_operation_thread

llvm::Optional<lldb_private::HostThread> ProcessMonitor::m_operation_thread

private

Definition at line 186 of file ProcessMonitor.h.

Referenced by StartAttachOpThread(), StartLaunchOpThread(), and StopOpThread().

◆ m_pid

lldb::pid_t ProcessMonitor::m_pid

private

Definition at line 188 of file ProcessMonitor.h.

Referenced by GetCurrentThreadIDs(), and Launch().

◆ m_process

ProcessFreeBSD* ProcessMonitor::m_process

private

Definition at line 184 of file ProcessMonitor.h.

Referenced by MonitorCallback(), MonitorSignal(), MonitorSIGTRAP(), and Resume().

◆ m_terminal_fd

int ProcessMonitor::m_terminal_fd

private

Definition at line 190 of file ProcessMonitor.h.

Referenced by Launch(), and StopMonitor().

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

Classes

Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ProcessMonitor() [1/2]

◆ ProcessMonitor() [2/2]

◆ ~ProcessMonitor()

Member Function Documentation

◆ Attach()

◆ AttachOpThread()

◆ Detach()

◆ DoOperation()

◆ DupDescriptor()

◆ GetCurrentThreadIDs()

◆ GetEventMessage()

◆ GetLwpInfo()

◆ GetPID()

◆ GetProcess()

◆ GetTerminalFD()

◆ Kill()

◆ Launch()

◆ LaunchOpThread()

◆ MonitorCallback()

◆ MonitorSignal()

◆ MonitorSIGTRAP()

◆ ReadDebugRegisterValue()

◆ ReadFPR()

◆ ReadGPR()

◆ ReadMemory()

◆ ReadRegisterSet()

◆ ReadRegisterValue()

◆ ReadThreadPointer()

◆ Resume()

◆ ServeOperation()

◆ SingleStep()

◆ StartAttachOpThread()

◆ StartLaunchOpThread()

◆ StopMonitor()

◆ StopMonitoringChildProcess()

◆ StopOpThread()

◆ ThreadSuspend()

◆ WaitForInitialTIDStop()

◆ WriteDebugRegisterValue()

◆ WriteFPR()

◆ WriteGPR()

◆ WriteMemory()

◆ WriteRegisterSet()

◆ WriteRegisterValue()

Member Data Documentation

◆ m_monitor_thread

◆ m_operation

◆ m_operation_done

◆ m_operation_mutex

◆ m_operation_pending

◆ m_operation_thread

◆ m_pid

◆ m_process

◆ m_terminal_fd