Rose::BinaryAnalysis::CallingConvention::ParameterLocation Class Reference

Description

Abstract parameter location.

This class is used to describe the location of a parameter or return value location in a calling convention definition outside any analysis (locations resulting from an analysis often contain more information). The location can be a register, a memory location at a constant address (e.g., global variable), or a memory location relative to some register (e.g., on a stack). Location descriptors are immutable.

The same type is used for input parameters, output parameters, and in-out parameters. Return values are a kind of output parameter, although the API usually does not include the return value when it talks about "parameters".

Definition at line 84 of file BinaryCallingConvention.h.

#include <BinaryCallingConvention.h>

Public Types
enum	Type {   NO_LOCATION,   REGISTER,   STACK,   ABSOLUTE }
	Type of location. More...

Public Member Functions
	ParameterLocation ()
	Default constructed no-location. More...
	ParameterLocation (RegisterDescriptor reg)
	Constructs a parameter in a register location. More...
	ParameterLocation (RegisterDescriptor reg, int64_t offset)
	Constructs a parameter at a register-relative memory address. More...
	ParameterLocation (rose_addr_t va)
	Constructs a parameter at a fixed memory address. More...
Type	type () const
	Type of parameter location. More...
bool	isValid () const
	Predicate to determine if location is valid. More...
RegisterDescriptor	reg () const
	Register part of location. More...
int64_t	offset () const
	Offset part of location. More...
rose_addr_t	address () const
	Fixed address location. More...
bool	operator== (const ParameterLocation &other) const
	Equality. More...
bool	operator!= (const ParameterLocation &other) const
	Inequality. More...
void	print (std::ostream &out, const RegisterDictionary *regdict) const
	Print location.
void	print (std::ostream &out, const RegisterNames &regnames) const
	Print location.

Member Enumeration Documentation

enum Rose::BinaryAnalysis::CallingConvention::ParameterLocation::Type

Type of location.

Enumerator
NO_LOCATION	Used by default-constructed locations.
REGISTER	Parameter is in a register.
STACK	Parameter in memory relative to a register. E.g., stack.
ABSOLUTE	Parameter is at a fixed memory address.

Definition at line 87 of file BinaryCallingConvention.h.

Constructor & Destructor Documentation

Rose::BinaryAnalysis::CallingConvention::ParameterLocation::ParameterLocation ( )

inline

Default constructed no-location.

This default constructor is useful for indicating no location or for using an STL container, such as std::vector, that requires a default constructor. The isValid predicate will return false for default-constructed locations.

Definition at line 124 of file BinaryCallingConvention.h.

Rose::BinaryAnalysis::CallingConvention::ParameterLocation::ParameterLocation ( RegisterDescriptor  reg )

inlineexplicit

Constructs a parameter in a register location.

Definition at line 128 of file BinaryCallingConvention.h.

Rose::BinaryAnalysis::CallingConvention::ParameterLocation::ParameterLocation ( RegisterDescriptor  reg, int64_t  offset  )

inline

Constructs a parameter at a register-relative memory address.

Definition at line 132 of file BinaryCallingConvention.h.

Rose::BinaryAnalysis::CallingConvention::ParameterLocation::ParameterLocation ( rose_addr_t  va )

inlineexplicit

Constructs a parameter at a fixed memory address.

Definition at line 136 of file BinaryCallingConvention.h.

Member Function Documentation

Type Rose::BinaryAnalysis::CallingConvention::ParameterLocation::type ( ) const

inline

Type of parameter location.

Definition at line 140 of file BinaryCallingConvention.h.

Referenced by isValid().

bool Rose::BinaryAnalysis::CallingConvention::ParameterLocation::isValid ( ) const

inline

Predicate to determine if location is valid.

Returns false for default-constructed locations, true for all others.

Definition at line 145 of file BinaryCallingConvention.h.

References NO_LOCATION, and type().

RegisterDescriptor Rose::BinaryAnalysis::CallingConvention::ParameterLocation::reg ( ) const

inline

Register part of location.

Returns the register where the parameter is stored (for register parameters) or the register holding the base address for register-relative memory parameters. Returns an invalid (default constructed) register descriptor when invoked on a default constructed location or a fixed memory addresses.

Definition at line 154 of file BinaryCallingConvention.h.

int64_t Rose::BinaryAnalysis::CallingConvention::ParameterLocation::offset ( ) const

inline

Offset part of location.

Returns the signed byte offset from the base register for register-relative memory parameters. The memory address of the parameter is the contents of the base register plus this byte offset. Returns zero for register parameters, parameters stored at fixed memory addresses, and default constructed locations.

Definition at line 163 of file BinaryCallingConvention.h.

References STACK.

rose_addr_t Rose::BinaryAnalysis::CallingConvention::ParameterLocation::address ( ) const

inline

Fixed address location.

Returns the address for a parameter stored at a fixed memory address. Returns zero for register parameters, register-relative (stack) parameters, and default constructed locations.

Definition at line 171 of file BinaryCallingConvention.h.

References ABSOLUTE.

bool Rose::BinaryAnalysis::CallingConvention::ParameterLocation::operator== ( const ParameterLocation &  other ) const

inline

Equality.

Two locations are equal if they are the same type and register, offset, and/or address as appropriate to the type.

Definition at line 178 of file BinaryCallingConvention.h.

bool Rose::BinaryAnalysis::CallingConvention::ParameterLocation::operator!= ( const ParameterLocation &  other ) const

inline

Inequality.

Two locations are unequal if they have different types, registers, offsets, or addresses.

Definition at line 185 of file BinaryCallingConvention.h.

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

• BinaryCallingConvention.h