#include <RegisterContextThreadMemory.h>

Inheritance diagram for lldb_private::RegisterContextThreadMemory:

Public Member Functions
	RegisterContextThreadMemory (Thread &thread, lldb::addr_t register_data_addr)
	~RegisterContextThreadMemory () override
void	InvalidateAllRegisters () override
size_t	GetRegisterCount () override
const RegisterInfo *	GetRegisterInfoAtIndex (size_t reg) override
size_t	GetRegisterSetCount () override
const RegisterSet *	GetRegisterSet (size_t reg_set) override
bool	ReadRegister (const RegisterInfo *reg_info, RegisterValue &reg_value) override
bool	WriteRegister (const RegisterInfo *reg_info, const RegisterValue &reg_value) override
bool	ReadAllRegisterValues (lldb::WritableDataBufferSP &data_sp) override
bool	ReadAllRegisterValues (lldb_private::RegisterCheckpoint &reg_checkpoint) override
bool	WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) override
bool	WriteAllRegisterValues (const lldb_private::RegisterCheckpoint &reg_checkpoint) override
bool	CopyFromRegisterContext (lldb::RegisterContextSP context)
uint32_t	ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num) override
	Convert from a given register numbering scheme to the lldb register numbering scheme.
uint32_t	NumSupportedHardwareBreakpoints () override
uint32_t	SetHardwareBreakpoint (lldb::addr_t addr, size_t size) override
bool	ClearHardwareBreakpoint (uint32_t hw_idx) override
uint32_t	NumSupportedHardwareWatchpoints () override
uint32_t	SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write) override
bool	ClearHardwareWatchpoint (uint32_t hw_index) override
bool	HardwareSingleStep (bool enable) override
Status	ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, uint32_t src_len, RegisterValue &reg_value) override
Status	WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, uint32_t dst_len, const RegisterValue &reg_value) override
Public Member Functions inherited from lldb_private::RegisterContext
	RegisterContext (Thread &thread, uint32_t concrete_frame_idx)
	~RegisterContext () override
void	InvalidateIfNeeded (bool force)
virtual lldb::ByteOrder	GetByteOrder ()
virtual bool	RegisterWriteCausesReconfigure (const llvm::StringRef name)
virtual bool	ReconfigureRegisterInfo ()
bool	CopyFromRegisterContext (lldb::RegisterContextSP context)
virtual lldb::tid_t	GetThreadID () const
virtual Thread &	GetThread ()
const RegisterInfo *	GetRegisterInfoByName (llvm::StringRef reg_name, uint32_t start_idx=0)
const RegisterInfo *	GetRegisterInfo (lldb::RegisterKind reg_kind, uint32_t reg_num)
uint64_t	GetPC (uint64_t fail_value=LLDB_INVALID_ADDRESS)
uint64_t	GetThreadPointer (uint64_t fail_value=LLDB_INVALID_ADDRESS)
bool	GetPCForSymbolication (Address &address)
	Get an address suitable for symbolication.
bool	SetPC (uint64_t pc)
bool	SetPC (Address addr)
uint64_t	GetSP (uint64_t fail_value=LLDB_INVALID_ADDRESS)
bool	SetSP (uint64_t sp)
uint64_t	GetFP (uint64_t fail_value=LLDB_INVALID_ADDRESS)
bool	SetFP (uint64_t fp)
const char *	GetRegisterName (uint32_t reg)
uint64_t	GetReturnAddress (uint64_t fail_value=LLDB_INVALID_ADDRESS)
uint64_t	GetFlags (uint64_t fail_value=0)
uint64_t	ReadRegisterAsUnsigned (uint32_t reg, uint64_t fail_value)
uint64_t	ReadRegisterAsUnsigned (const RegisterInfo *reg_info, uint64_t fail_value)
bool	WriteRegisterFromUnsigned (uint32_t reg, uint64_t uval)
bool	WriteRegisterFromUnsigned (const RegisterInfo *reg_info, uint64_t uval)
bool	ConvertBetweenRegisterKinds (lldb::RegisterKind source_rk, uint32_t source_regnum, lldb::RegisterKind target_rk, uint32_t &target_regnum)
lldb::TargetSP	CalculateTarget () override
lldb::ProcessSP	CalculateProcess () override
lldb::ThreadSP	CalculateThread () override
lldb::StackFrameSP	CalculateStackFrame () override
void	CalculateExecutionContext (ExecutionContext &exe_ctx) override
	Reconstruct the object's execution context into sc.
uint32_t	GetStopID () const
void	SetStopID (uint32_t stop_id)
Public Member Functions inherited from lldb_private::ExecutionContextScope
virtual	~ExecutionContextScope ()=default

Protected Member Functions
void	UpdateRegisterContext ()
Protected Member Functions inherited from lldb_private::RegisterContext
virtual bool	BehavesLikeZerothFrame () const
	Indicates that this frame is currently executing code, that the PC value is not a return-pc but an actual executing instruction.

Protected Attributes
lldb::ThreadWP	m_thread_wp
lldb::RegisterContextSP	m_reg_ctx_sp
lldb::addr_t	m_register_data_addr
uint32_t	m_stop_id
Protected Attributes inherited from lldb_private::RegisterContext
Thread &	m_thread
uint32_t	m_concrete_frame_idx
uint32_t	m_stop_id

Private Member Functions
	RegisterContextThreadMemory (const RegisterContextThreadMemory &)=delete
const RegisterContextThreadMemory &	operator= (const RegisterContextThreadMemory &)=delete

Private Attributes
std::mutex	m_update_register_ctx_lock

Detailed Description

Definition at line 20 of file RegisterContextThreadMemory.h.

Constructor & Destructor Documentation

◆ RegisterContextThreadMemory() [1/2]

RegisterContextThreadMemory::RegisterContextThreadMemory	(	Thread &	thread,
		lldb::addr_t	register_data_addr )

Definition at line 20 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, m_register_data_addr, m_stop_id, m_thread_wp, and lldb_private::RegisterContext::RegisterContext().

Referenced by operator=(), and RegisterContextThreadMemory().

◆ ~RegisterContextThreadMemory()

RegisterContextThreadMemory::~RegisterContextThreadMemory ( )

overridedefault

◆ RegisterContextThreadMemory() [2/2]

lldb_private::RegisterContextThreadMemory::RegisterContextThreadMemory ( const RegisterContextThreadMemory & )

privatedelete

References RegisterContextThreadMemory().

Member Function Documentation

◆ ClearHardwareBreakpoint()

bool RegisterContextThreadMemory::ClearHardwareBreakpoint ( uint32_t hw_idx )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 174 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ ClearHardwareWatchpoint()

bool RegisterContextThreadMemory::ClearHardwareWatchpoint ( uint32_t hw_index )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 198 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ ConvertRegisterKindToRegisterNumber()

uint32_t RegisterContextThreadMemory::ConvertRegisterKindToRegisterNumber	(	lldb::RegisterKind	kind,
		uint32_t	num )

overridevirtual

Convert from a given register numbering scheme to the lldb register numbering scheme.

There may be multiple ways to enumerate the registers for a given architecture. ABI references will specify one to be used with DWARF, the register numberings from process plugin, there may be a variation used for eh_frame unwind instructions (e.g. on Darwin), and so on. Register 5 by itself is meaningless - RegisterKind enumeration tells you what context that number should be translated as.

Inside lldb, register numbers are in the eRegisterKindLLDB scheme; arguments which take a register number should take one in that scheme.

eRegisterKindGeneric is a special numbering scheme which gives us constant values for the pc, frame register, stack register, etc., for use within lldb. They may not be defined for all architectures but it allows generic code to translate these common registers into the lldb numbering scheme.

This method translates a given register kind + register number into the eRegisterKindLLDB register numbering.

Parameters

[in]	kind	The register numbering scheme (RegisterKind) that the following register number is in.
[in]	num	A register number in the 'kind' register numbering scheme.

Returns: The equivalent register number in the eRegisterKindLLDB numbering scheme, if possible, else LLDB_INVALID_REGNUM.

Reimplemented from lldb_private::RegisterContext.

Definition at line 151 of file RegisterContextThreadMemory.cpp.

References LLDB_INVALID_REGNUM, m_reg_ctx_sp, and UpdateRegisterContext().

◆ CopyFromRegisterContext()

bool RegisterContextThreadMemory::CopyFromRegisterContext ( lldb::RegisterContextSP context )

Definition at line 143 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ GetRegisterCount()

size_t RegisterContextThreadMemory::GetRegisterCount ( )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 66 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ GetRegisterInfoAtIndex()

const RegisterInfo * RegisterContextThreadMemory::GetRegisterInfoAtIndex ( size_t reg )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 74 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ GetRegisterSet()

const RegisterSet * RegisterContextThreadMemory::GetRegisterSet ( size_t reg_set )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 88 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ GetRegisterSetCount()

size_t RegisterContextThreadMemory::GetRegisterSetCount ( )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 81 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ HardwareSingleStep()

bool RegisterContextThreadMemory::HardwareSingleStep ( bool enable )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 205 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ InvalidateAllRegisters()

void RegisterContextThreadMemory::InvalidateAllRegisters ( )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 60 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ NumSupportedHardwareBreakpoints()

uint32_t RegisterContextThreadMemory::NumSupportedHardwareBreakpoints ( )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 159 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ NumSupportedHardwareWatchpoints()

uint32_t RegisterContextThreadMemory::NumSupportedHardwareWatchpoints ( )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 181 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ operator=()

const RegisterContextThreadMemory & lldb_private::RegisterContextThreadMemory::operator= ( const RegisterContextThreadMemory & )

privatedelete

References RegisterContextThreadMemory().

◆ ReadAllRegisterValues() [1/2]

bool RegisterContextThreadMemory::ReadAllRegisterValues ( lldb::WritableDataBufferSP & data_sp )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 111 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ ReadAllRegisterValues() [2/2]

bool RegisterContextThreadMemory::ReadAllRegisterValues ( lldb_private::RegisterCheckpoint & reg_checkpoint )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 119 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ ReadRegister()

bool RegisterContextThreadMemory::ReadRegister	(	const RegisterInfo *	reg_info,
		RegisterValue &	reg_value )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 95 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ ReadRegisterValueFromMemory()

Status RegisterContextThreadMemory::ReadRegisterValueFromMemory	(	const lldb_private::RegisterInfo *	reg_info,
		lldb::addr_t	src_addr,
		uint32_t	src_len,
		RegisterValue &	reg_value )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 212 of file RegisterContextThreadMemory.cpp.

References lldb_private::Status::FromErrorString(), m_reg_ctx_sp, and UpdateRegisterContext().

◆ SetHardwareBreakpoint()

uint32_t RegisterContextThreadMemory::SetHardwareBreakpoint	(	lldb::addr_t	addr,
		size_t	size )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 166 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ SetHardwareWatchpoint()

uint32_t RegisterContextThreadMemory::SetHardwareWatchpoint	(	lldb::addr_t	addr,
		size_t	size,
		bool	read,
		bool	write )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 188 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ UpdateRegisterContext()

void RegisterContextThreadMemory::UpdateRegisterContext ( )

protected

Definition at line 27 of file RegisterContextThreadMemory.cpp.

References lldb_private::OperatingSystem::CreateRegisterContextForThread(), lldb_private::OperatingSystem::IsOperatingSystemPluginThread(), m_reg_ctx_sp, m_register_data_addr, m_stop_id, m_thread_wp, and m_update_register_ctx_lock.

Referenced by ClearHardwareBreakpoint(), ClearHardwareWatchpoint(), ConvertRegisterKindToRegisterNumber(), CopyFromRegisterContext(), GetRegisterCount(), GetRegisterInfoAtIndex(), GetRegisterSet(), GetRegisterSetCount(), HardwareSingleStep(), InvalidateAllRegisters(), NumSupportedHardwareBreakpoints(), NumSupportedHardwareWatchpoints(), ReadAllRegisterValues(), ReadAllRegisterValues(), ReadRegister(), ReadRegisterValueFromMemory(), SetHardwareBreakpoint(), SetHardwareWatchpoint(), WriteAllRegisterValues(), WriteAllRegisterValues(), WriteRegister(), and WriteRegisterValueToMemory().

◆ WriteAllRegisterValues() [1/2]

bool RegisterContextThreadMemory::WriteAllRegisterValues ( const lldb::DataBufferSP & data_sp )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 127 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ WriteAllRegisterValues() [2/2]

bool RegisterContextThreadMemory::WriteAllRegisterValues ( const lldb_private::RegisterCheckpoint & reg_checkpoint )

overridevirtual

Reimplemented from lldb_private::RegisterContext.

Definition at line 135 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ WriteRegister()

bool RegisterContextThreadMemory::WriteRegister	(	const RegisterInfo *	reg_info,
		const RegisterValue &	reg_value )

overridevirtual

Implements lldb_private::RegisterContext.

Definition at line 103 of file RegisterContextThreadMemory.cpp.

References m_reg_ctx_sp, and UpdateRegisterContext().

◆ WriteRegisterValueToMemory()

Status RegisterContextThreadMemory::WriteRegisterValueToMemory	(	const lldb_private::RegisterInfo *	reg_info,
		lldb::addr_t	dst_addr,
		uint32_t	dst_len,
		const RegisterValue &	reg_value )