ghidra::SegmentedResolver Class Reference

A resolver for segmented architectures. More...

#include <architecture.hh>

Inheritance diagram for ghidra::SegmentedResolver:

Public Member Functions
	SegmentedResolver (Architecture *g, AddrSpace *sp, SegmentOp *sop)
virtual Address	resolve (uintb val, int4 sz, const Address &point, uintb &fullEncoding)
	Virtual destructor More...

Private Attributes
Architecture *	glb
	The architecture owning the segmented space.
AddrSpace *	spc
	The address space being segmented.
SegmentOp *	segop
	The segment operator.

Detailed Description

A resolver for segmented architectures.

When the decompiler is attempting to resolve embedded constants as pointers, this class tries to recover segment info for near pointers by looking up tracked registers in context

Constructor & Destructor Documentation

SegmentedResolver()

ghidra::SegmentedResolver::SegmentedResolver ( Architecture *  g, AddrSpace *  sp, SegmentOp *  sop  )

inline

Construct a segmented resolver

Parameters

g	is the owning Architecture
sp	is the segmented space
sop	is the segment operator

Member Function Documentation

resolve()

Address ghidra::SegmentedResolver::resolve ( uintb  val, int4  sz, const Address &  point, uintb &  fullEncoding  )

virtual

Virtual destructor

The main resolver method.

Given a native constant in a specific context, resolve what address is being referred to. The constant can be a partially encoded pointer, in which case the full pointer encoding is recovered as well as the address. Whether or not a pointer is partially encoded or not is determined by the sz parameter, indicating the number of bytes in the pointer. A value of -1 here indicates that the pointer is known to be a full encoding.

Parameters

val	is constant to be resolved to an address
sz	is the size of val in context (or -1).
point	is the address at which this constant is being used
fullEncoding	is used to hold the full pointer encoding if val is a partial encoding

Returns

the resolved Address

Implements ghidra::AddressResolver.

References ghidra::AddrSpace::addressToByte(), and ghidra::calc_mask().

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

• architecture.hh
• architecture.cc