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lldb_private::RegisterContextWindows Class Reference

#include <RegisterContextWindows.h>

Inheritance diagram for lldb_private::RegisterContextWindows:
Inheritance graph

Public Member Functions

 RegisterContextWindows (Thread &thread, uint32_t concrete_frame_idx)
virtual ~RegisterContextWindows ()
void InvalidateAllRegisters () override
bool ReadAllRegisterValues (lldb::WritableDataBufferSP &data_sp) override
bool WriteAllRegisterValues (const lldb::DataBufferSP &data_sp) 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 HardwareSingleStep (bool enable) override
bool AddHardwareBreakpoint (uint32_t slot, lldb::addr_t address, uint32_t size, bool read, bool write)
bool RemoveHardwareBreakpoint (uint32_t slot)
uint32_t GetTriggeredHardwareBreakpointSlotId ()
- Public Member Functions inherited from lldb_private::RegisterContext
 RegisterContext (Thread &thread, uint32_t concrete_frame_idx)
 ~RegisterContext () override
void InvalidateIfNeeded (bool force)
virtual void InvalidateAllRegisters ()=0
virtual size_t GetRegisterCount ()=0
virtual const RegisterInfoGetRegisterInfoAtIndex (size_t reg)=0
virtual size_t GetRegisterSetCount ()=0
virtual const RegisterSetGetRegisterSet (size_t reg_set)=0
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::WritableDataBufferSP &data_sp)
virtual bool WriteAllRegisterValues (const lldb::DataBufferSP &data_sp)
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 ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num)
 Convert from a given register numbering scheme to the lldb register numbering scheme.
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 RegisterInfoGetRegisterInfoByName (llvm::StringRef reg_name, uint32_t start_idx=0)
const RegisterInfoGetRegisterInfo (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
virtual lldb::TargetSP CalculateTarget ()=0
virtual lldb::ProcessSP CalculateProcess ()=0
virtual lldb::ThreadSP CalculateThread ()=0
virtual lldb::StackFrameSP CalculateStackFrame ()=0
virtual void CalculateExecutionContext (ExecutionContext &exe_ctx)=0
 Reconstruct the object's execution context into sc.

Static Public Member Functions

static constexpr uint32_t GetNumHardwareBreakpointSlots ()

Protected Member Functions

virtual bool CacheAllRegisterValues ()
virtual bool ApplyAllRegisterValues ()
- 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

CONTEXT m_context
bool m_context_stale
- Protected Attributes inherited from lldb_private::RegisterContext
uint32_t m_concrete_frame_idx
uint32_t m_stop_id

Static Protected Attributes

static constexpr unsigned NUM_HARDWARE_BREAKPOINT_SLOTS = 4

Detailed Description

Definition at line 19 of file RegisterContextWindows.h.

Constructor & Destructor Documentation

◆ RegisterContextWindows()

RegisterContextWindows::RegisterContextWindows ( Thread thread,
uint32_t  concrete_frame_idx 

Definition at line 28 of file RegisterContextWindows.cpp.

◆ ~RegisterContextWindows()

RegisterContextWindows::~RegisterContextWindows ( )

Definition at line 33 of file RegisterContextWindows.cpp.

Member Function Documentation

◆ AddHardwareBreakpoint()

bool RegisterContextWindows::AddHardwareBreakpoint ( uint32_t  slot,
lldb::addr_t  address,
uint32_t  size,
bool  read,
bool  write 

◆ ApplyAllRegisterValues()

bool RegisterContextWindows::ApplyAllRegisterValues ( )

◆ CacheAllRegisterValues()

bool RegisterContextWindows::CacheAllRegisterValues ( )

◆ ConvertRegisterKindToRegisterNumber()

uint32_t RegisterContextWindows::ConvertRegisterKindToRegisterNumber ( lldb::RegisterKind  kind,
uint32_t  num 

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.

[in]kindThe register numbering scheme (RegisterKind) that the following register number is in.
[in]numA register number in the 'kind' register numbering scheme.
The equivalent register number in the eRegisterKindLLDB numbering scheme, if possible, else LLDB_INVALID_REGNUM.

Reimplemented from lldb_private::RegisterContext.

Definition at line 59 of file RegisterContextWindows.cpp.

References lldb_private::RegisterContext::GetRegisterCount(), lldb_private::RegisterContext::GetRegisterInfoAtIndex(), lldb_private::RegisterInfo::kinds, lldb::kNumRegisterKinds, and LLDB_INVALID_REGNUM.

◆ GetNumHardwareBreakpointSlots()

static constexpr uint32_t lldb_private::RegisterContextWindows::GetNumHardwareBreakpointSlots ( )

◆ GetTriggeredHardwareBreakpointSlotId()

uint32_t RegisterContextWindows::GetTriggeredHardwareBreakpointSlotId ( )

◆ HardwareSingleStep()

bool RegisterContextWindows::HardwareSingleStep ( bool  enable)

Reimplemented from lldb_private::RegisterContext.

Definition at line 74 of file RegisterContextWindows.cpp.

◆ InvalidateAllRegisters()

void RegisterContextWindows::InvalidateAllRegisters ( )

Implements lldb_private::RegisterContext.

Definition at line 35 of file RegisterContextWindows.cpp.

References m_context_stale.

◆ ReadAllRegisterValues()

bool RegisterContextWindows::ReadAllRegisterValues ( lldb::WritableDataBufferSP data_sp)

Reimplemented from lldb_private::RegisterContext.

Definition at line 39 of file RegisterContextWindows.cpp.

References CacheAllRegisterValues(), and m_context.

◆ RemoveHardwareBreakpoint()

bool RegisterContextWindows::RemoveHardwareBreakpoint ( uint32_t  slot)

◆ WriteAllRegisterValues()

bool RegisterContextWindows::WriteAllRegisterValues ( const lldb::DataBufferSP data_sp)

Reimplemented from lldb_private::RegisterContext.

Definition at line 51 of file RegisterContextWindows.cpp.

References ApplyAllRegisterValues(), and m_context.

Member Data Documentation

◆ m_context

CONTEXT lldb_private::RegisterContextWindows::m_context

◆ m_context_stale

bool lldb_private::RegisterContextWindows::m_context_stale

Definition at line 55 of file RegisterContextWindows.h.

Referenced by CacheAllRegisterValues(), and InvalidateAllRegisters().


constexpr unsigned lldb_private::RegisterContextWindows::NUM_HARDWARE_BREAKPOINT_SLOTS = 4

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