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RegisterContextMemory Class Reference

#include <RegisterContextMemory.h>

Inheritance diagram for RegisterContextMemory:
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Collaboration diagram for RegisterContextMemory:
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Public Member Functions

 RegisterContextMemory (lldb_private::Thread &thread, uint32_t concrete_frame_idx, 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. More...
 
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::DataBufferSP &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)
 
uint32_t UpdateDynamicRegisterSize (const lldb_private::ArchSpec &arch, RegisterInfo *reg_info)
 
virtual lldb::ByteOrder GetByteOrder ()
 
virtual bool ReadRegister (const RegisterInfo *reg_info, RegisterValue &reg_value)=0
 
virtual bool WriteRegister (const RegisterInfo *reg_info, const RegisterValue &reg_value)=0
 
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 ThreadGetThread ()
 
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)
 
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. More...
 
uint32_t GetStopID () const
 
void SetStopID (uint32_t stop_id)
 
- Public Member Functions inherited from lldb_private::ExecutionContextScope
virtual ~ExecutionContextScope ()
 

Protected Member Functions

void SetAllRegisterValid (bool b)
 

Protected Attributes

DynamicRegisterInfom_reg_infos
 
std::vector< bool > m_reg_valid
 
lldb_private::DataExtractor m_reg_data
 
lldb::addr_t m_reg_data_addr
 
- Protected Attributes inherited from lldb_private::RegisterContext
Threadm_thread
 
uint32_t m_concrete_frame_idx
 
uint32_t m_stop_id
 

Private Member Functions

 RegisterContextMemory (const RegisterContextMemory &)=delete
 
const RegisterContextMemoryoperator= (const RegisterContextMemory &)=delete
 

Detailed Description

Definition at line 20 of file RegisterContextMemory.h.

Constructor & Destructor Documentation

◆ RegisterContextMemory() [1/2]

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

◆ ~RegisterContextMemory()

RegisterContextMemory::~RegisterContextMemory ( )
override

Definition at line 42 of file RegisterContextMemory.cpp.

◆ RegisterContextMemory() [2/2]

RegisterContextMemory::RegisterContextMemory ( const RegisterContextMemory )
privatedelete

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]kindThe register numbering scheme (RegisterKind) that the following register number is in.
[in]numA 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 71 of file RegisterContextMemory.cpp.

References DynamicRegisterInfo::ConvertRegisterKindToRegisterNumber(), and m_reg_infos.

◆ GetRegisterCount()

size_t RegisterContextMemory::GetRegisterCount ( )
overridevirtual

◆ GetRegisterInfoAtIndex()

const RegisterInfo * RegisterContextMemory::GetRegisterInfoAtIndex ( size_t  reg)
overridevirtual

◆ GetRegisterSet()

const RegisterSet * RegisterContextMemory::GetRegisterSet ( size_t  reg_set)
overridevirtual

◆ GetRegisterSetCount()

size_t RegisterContextMemory::GetRegisterSetCount ( )
overridevirtual

◆ InvalidateAllRegisters()

void RegisterContextMemory::InvalidateAllRegisters ( )
overridevirtual

◆ operator=()

const RegisterContextMemory& RegisterContextMemory::operator= ( const RegisterContextMemory )
privatedelete

◆ ReadAllRegisterValues()

bool RegisterContextMemory::ReadAllRegisterValues ( lldb::DataBufferSP &  data_sp)
overridevirtual

◆ ReadRegister()

bool RegisterContextMemory::ReadRegister ( const lldb_private::RegisterInfo *  reg_info,
lldb_private::RegisterValue reg_value 
)
override

◆ SetAllRegisterData()

void RegisterContextMemory::SetAllRegisterData ( const lldb::DataBufferSP &  data_sp)

◆ SetAllRegisterValid()

void RegisterContextMemory::SetAllRegisterValid ( bool  b)
protected

◆ WriteAllRegisterValues()

bool RegisterContextMemory::WriteAllRegisterValues ( const lldb::DataBufferSP &  data_sp)
overridevirtual

◆ WriteRegister()

bool RegisterContextMemory::WriteRegister ( const lldb_private::RegisterInfo *  reg_info,
const lldb_private::RegisterValue reg_value 
)
override

Member Data Documentation

◆ m_reg_data

lldb_private::DataExtractor RegisterContextMemory::m_reg_data
protected

Definition at line 65 of file RegisterContextMemory.h.

Referenced by ReadRegister(), RegisterContextMemory(), and SetAllRegisterData().

◆ m_reg_data_addr

lldb::addr_t RegisterContextMemory::m_reg_data_addr
protected

◆ m_reg_infos

DynamicRegisterInfo& RegisterContextMemory::m_reg_infos
protected

◆ m_reg_valid

std::vector<bool> RegisterContextMemory::m_reg_valid
protected

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