#include <RegisterContextMemory.h>

Inheritance diagram for RegisterContextMemory:

Public Member Functions
	RegisterContextMemory (lldb_private::Thread &thread, uint32_t concrete_frame_idx, lldb_private::DynamicRegisterInfo &reg_info, lldb::addr_t reg_data_addr)
	~RegisterContextMemory () override
void	InvalidateAllRegisters () override
size_t	GetRegisterCount () override
const lldb_private::RegisterInfo *	GetRegisterInfoAtIndex (size_t reg) override
size_t	GetRegisterSetCount () override
const lldb_private::RegisterSet *	GetRegisterSet (size_t reg_set) override
uint32_t	ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num) override
	Convert from a given register numbering scheme to the lldb register numbering scheme.
bool	ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &reg_value) override
bool	WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &reg_value) override
bool	ReadAllRegisterValues (lldb::WritableDataBufferSP &data_sp) override
bool	WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) override
void	SetAllRegisterData (const lldb::DataBufferSP &data_sp)
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 ()
virtual bool	ReadAllRegisterValues (lldb_private::RegisterCheckpoint &reg_checkpoint)
virtual bool	WriteAllRegisterValues (const lldb_private::RegisterCheckpoint &reg_checkpoint)
bool	CopyFromRegisterContext (lldb::RegisterContextSP context)
virtual uint32_t	NumSupportedHardwareBreakpoints ()
virtual uint32_t	SetHardwareBreakpoint (lldb::addr_t addr, size_t size)
virtual bool	ClearHardwareBreakpoint (uint32_t hw_idx)
virtual uint32_t	NumSupportedHardwareWatchpoints ()
virtual uint32_t	SetHardwareWatchpoint (lldb::addr_t addr, size_t size, bool read, bool write)
virtual bool	ClearHardwareWatchpoint (uint32_t hw_index)
virtual bool	HardwareSingleStep (bool enable)
virtual Status	ReadRegisterValueFromMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t src_addr, uint32_t src_len, RegisterValue &reg_value)
virtual Status	WriteRegisterValueToMemory (const lldb_private::RegisterInfo *reg_info, lldb::addr_t dst_addr, uint32_t dst_len, const RegisterValue &reg_value)
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	SetAllRegisterValid (bool b)
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_private::DynamicRegisterInfo &	m_reg_infos
std::vector< bool >	m_reg_valid
lldb::WritableDataBufferSP	m_data
lldb_private::DataExtractor	m_reg_data
lldb::addr_t	m_reg_data_addr
Protected Attributes inherited from lldb_private::RegisterContext
Thread &	m_thread
uint32_t	m_concrete_frame_idx
uint32_t	m_stop_id

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

Detailed Description

Definition at line 19 of file RegisterContextMemory.h.

Constructor & Destructor Documentation

◆ RegisterContextMemory() [1/2]

RegisterContextMemory::RegisterContextMemory	(	lldb_private::Thread &	thread,
		uint32_t	concrete_frame_idx,
		lldb_private::DynamicRegisterInfo &	reg_info,
		lldb::addr_t	reg_data_addr )

Definition at line 21 of file RegisterContextMemory.cpp.

References lldb_private::DynamicRegisterInfo::GetNumRegisters(), lldb_private::DynamicRegisterInfo::GetRegisterDataByteSize(), m_data, m_reg_data, m_reg_data_addr, m_reg_infos, m_reg_valid, and lldb_private::RegisterContext::RegisterContext().

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

◆ ~RegisterContextMemory()

RegisterContextMemory::~RegisterContextMemory ( )

overridedefault

◆ RegisterContextMemory() [2/2]

RegisterContextMemory::RegisterContextMemory ( const RegisterContextMemory & )

privatedelete

References RegisterContextMemory().

Member Function Documentation

◆ ConvertRegisterKindToRegisterNumber()

uint32_t RegisterContextMemory::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.