InjectPayload Class Reference

An active container for a set of p-code operations that can be injected into data-flow. More...

#include <pcodeinject.hh>

Inheritance diagram for InjectPayload:

Public Types
enum	{ CALLFIXUP_TYPE = 1, CALLOTHERFIXUP_TYPE = 2, CALLMECHANISM_TYPE = 3, EXECUTABLEPCODE_TYPE = 4 }

Public Member Functions
virtual void	inject (InjectContext &context, PcodeEmit &emit) const =0
virtual void	restoreXml (const Element *el)
	Restore this payload from an XML stream. More...
virtual void	printTemplate (ostream &s) const =0
	Print the p-code ops of the injection to a stream (for debugging)
virtual string	getSource (void) const =0
	Return a string describing the source of the injection (.cspec, prototype model, etc.)

Protected Member Functions
void	orderParameters (void)
	Assign an index to parameters. More...

Static Protected Member Functions
static void	readParameter (const Element *el, string &name, uint4 &size)
	Read in an <input> or <output> XML tag describing an injection parameter. More...

Protected Attributes
string	name
	Formal name of the payload.
int4	type
	Type of this payload: CALLFIXUP_TYPE, CALLOTHERFIXUP_TYPE, etc.
bool	dynamic
	True if the injection is generated dynamically.
bool	incidentalCopy
	True if injected COPYs are considered incidental.
int4	paramshift
	Number of parameters shifted in the original call.
vector< InjectParameter >	inputlist
	List of input parameters to this payload.
vector< InjectParameter >	output
	List of output parameters.

Detailed Description

An active container for a set of p-code operations that can be injected into data-flow.

This is an abstract base class. Derived classes manage details of how the p-code is stored. The methods provide access to the input/output parameter information, and the main injection is performed with inject().

Member Enumeration Documentation

anonymous enum

anonymous enum

Enumerator
CALLFIXUP_TYPE	Injection that replaces a CALL.
CALLOTHERFIXUP_TYPE	Injection that replaces a user-defined p-code op, CALLOTHER.
CALLMECHANISM_TYPE	Injection to patch up data-flow around the caller/callee boundary.
EXECUTABLEPCODE_TYPE	Injection running as a stand-alone p-code script.

Member Function Documentation

inject()

virtual void InjectPayload::inject ( InjectContext &  context, PcodeEmit &  emit  ) const

pure virtual

Perform the injection of this payload into data-flow.

P-code operations representing this payload are copied into the controlling analysis context. The provided PcodeEmit object dictates exactly where the PcodeOp and Varnode objects are inserted and to what container. An InjectContext object specifies how placeholder elements become concrete Varnodes in the appropriate context.

Parameters

context	is the provided InjectConject object
emit	is the provovided PcodeEmit object

Implemented in InjectPayloadDynamic, ExecutablePcodeSleigh, ExecutablePcodeGhidra, InjectPayloadGhidra, and InjectPayloadSleigh.

orderParameters()

void InjectPayload::orderParameters ( void  )

protected

Assign an index to parameters.

Input and output parameters are assigned a unique index.

readParameter()

void InjectPayload::readParameter ( const Element *  el, string &  name, uint4 &  size  )

staticprotected

Read in an <input> or <output> XML tag describing an injection parameter.

Parameters

el	is the XML element
name	is used to pass back the parameter name
size	is used to pass back the parameter size

restoreXml()

void InjectPayload::restoreXml ( const Element *  el )

virtual

Restore this payload from an XML stream.

The base class version of this method restores from a <pcode> tag. Derived classes may restore from a parent tag and then invoke the base class method.

Parameters

el	is the XML element

Reimplemented in ExecutablePcodeSleigh, ExecutablePcodeGhidra, InjectPayloadCallother, InjectCallotherGhidra, InjectPayloadCallfixup, InjectCallfixupGhidra, InjectPayloadGhidra, and InjectPayloadSleigh.

---

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

• pcodeinject.hh
• pcodeinject.cc