DwarfState Class Reference

#include <DwarfState.h>

Collaboration diagram for DwarfState:

Public Types
enum	RegisterState {   SameValue = 0 , Undefined , Offset , ValOffset ,   Register , Expression , ValExpression , Architectural }

Public Member Functions
	DwarfState (const DwarfState &other)
DwarfState &	operator= (const DwarfState &other)
processor_register_t	getCfa (const DwarfState &initialState) const
processor_register_t	getRegister (unsigned int nRegister, const DwarfState &initialState) const

Public Attributes
RegisterState	m_RegisterStates [DWARF_MAX_REGISTERS]
processor_register_t	m_R [DWARF_MAX_REGISTERS]
RegisterState	m_CfaState
uint32_t	m_CfaRegister
processor_register_t	m_CfaOffset
uint8_t *	m_CfaExpression
uintptr_t	m_ReturnAddress

Detailed Description

Holds one row of a Dwarf CFI table. We technically generate a table, but we only keep track of the current row.

Definition at line 65 of file DwarfState.h.

Member Enumeration Documentation

RegisterState

enum DwarfState::RegisterState

Definition at line 67 of file DwarfState.h.

Constructor & Destructor Documentation

DwarfState() [1/2]

DwarfState::DwarfState ( )

inline

Definition at line 78 of file DwarfState.h.

~DwarfState()

DwarfState::~DwarfState ( )

inline

Definition at line 87 of file DwarfState.h.

DwarfState() [2/2]

DwarfState::DwarfState ( const DwarfState &  other )

inline

Copy constructor.

Definition at line 92 of file DwarfState.h.

References m_R, and m_RegisterStates.

Member Function Documentation

getCfa()

processor_register_t DwarfState::getCfa ( const DwarfState &  initialState ) const

inline

Definition at line 119 of file DwarfState.h.

getRegister()

processor_register_t DwarfState::getRegister ( unsigned int  nRegister, const DwarfState &  initialState  ) const

inline

Todo:

This needs to be better - we need to check if the CFA is borked so we don't try to do a stupid read - This requires VirtualAddressSpace, I think.

Definition at line 136 of file DwarfState.h.

References m_R, and m_RegisterStates.

operator=()

DwarfState & DwarfState::operator= ( const DwarfState &  other )

inline

Definition at line 105 of file DwarfState.h.

Member Data Documentation

m_CfaExpression

uint8_t* DwarfState::m_CfaExpression

Current CFA expression, if applicable.

Definition at line 217 of file DwarfState.h.

m_CfaOffset

processor_register_t DwarfState::m_CfaOffset

Definition at line 213 of file DwarfState.h.

m_CfaRegister

uint32_t DwarfState::m_CfaRegister

Current CFA register, and offset.

Definition at line 212 of file DwarfState.h.

Referenced by DwarfCfiAutomaton::executeInstruction().

m_CfaState

RegisterState DwarfState::m_CfaState

Current CFA (current frame address) - first and most important column in the table.

Definition at line 208 of file DwarfState.h.

Referenced by DwarfCfiAutomaton::executeInstruction().

m_R

processor_register_t DwarfState::m_R[DWARF_MAX_REGISTERS]

Registers (columns in the table).

Definition at line 202 of file DwarfState.h.

Referenced by DwarfState(), DwarfCfiAutomaton::executeInstruction(), and getRegister().

m_RegisterStates

RegisterState DwarfState::m_RegisterStates[DWARF_MAX_REGISTERS]

Register states - these define how to interpret the m_R members.

Definition at line 197 of file DwarfState.h.

Referenced by DwarfState(), DwarfCfiAutomaton::executeInstruction(), and getRegister().

m_ReturnAddress

uintptr_t DwarfState::m_ReturnAddress

The column which contains the function return address.

Definition at line 222 of file DwarfState.h.

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

• DwarfState.h