Ghidra Decompiler Analysis Engine
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An unstructured model for passing input parameters to a function. More...
#include <fspec.hh>
Public Member Functions | |
virtual uint4 | getType (void) const |
Get the type of parameter list. | |
virtual void | fillinMap (ParamActive *active) const |
Given an unordered list of storage locations, calculate a function prototype. More... | |
virtual ParamList * | clone (void) const |
Clone this parameter list model. | |
Public Member Functions inherited from ParamListStandard | |
ParamListStandard (const ParamListStandard &op2) | |
Copy constructor. | |
virtual void | assignMap (const vector< Datatype * > &proto, bool isinput, TypeFactory &typefactory, vector< ParameterPieces > &res) const |
Given list of data-types, map the list positions to storage locations. More... | |
virtual bool | checkJoin (const Address &hiaddr, int4 hisize, const Address &loaddr, int4 losize) const |
Check if the given two storage locations can represent a single logical parameter. More... | |
virtual bool | checkSplit (const Address &loc, int4 size, int4 splitpoint) const |
Check if it makes sense to split a single storage location into two parameters. More... | |
virtual int4 | characterizeAsParam (const Address &loc, int4 size) const |
Characterize whether the given range overlaps parameter storage. More... | |
virtual bool | possibleParam (const Address &loc, int4 size) const |
Does the given storage location make sense as a parameter. More... | |
virtual bool | possibleParamWithSlot (const Address &loc, int4 size, int4 &slot, int4 &slotsize) const |
Pass-back the slot and slot size for the given storage location as a parameter. More... | |
virtual bool | getBiggestContainedParam (const Address &loc, int4 size, VarnodeData &res) const |
Pass-back the biggest parameter contained within the given range. More... | |
virtual bool | unjustifiedContainer (const Address &loc, int4 size, VarnodeData &res) const |
Check if the given storage location looks like an unjustified parameter. More... | |
virtual OpCode | assumedExtension (const Address &addr, int4 size, VarnodeData &res) const |
Get the type of extension and containing parameter for the given storage. More... | |
virtual AddrSpace * | getSpacebase (void) const |
Get the address space associated with any stack based parameters in this list. More... | |
virtual void | getRangeList (AddrSpace *spc, RangeList &res) const |
For a given address space, collect all the parameter locations within that space. More... | |
virtual int4 | getMaxDelay (void) const |
Return the maximum heritage delay across all possible parameters. More... | |
virtual void | restoreXml (const Element *el, const AddrSpaceManager *manage, vector< EffectRecord > &effectlist, bool normalstack) |
Restore the model from an XML stream. More... | |
Additional Inherited Members | |
Public Types inherited from ParamList | |
enum | { p_standard, p_standard_out, p_register, p_merged } |
Protected Member Functions inherited from ParamListStandard | |
const ParamEntry * | findEntry (const Address &loc, int4 size) const |
Given storage location find matching ParamEntry. More... | |
Address | assignAddress (const Datatype *tp, vector< int4 > &status) const |
Assign storage for given parameter data-type. More... | |
void | buildTrialMap (ParamActive *active) const |
Build map from parameter trials to model ParamEntrys. More... | |
void | separateFloat (ParamActive *active, int4 &floatstart, int4 &floatstop, int4 &start, int4 &stop) const |
Calculate the range of floating-point entries within a given set of parameter trials. More... | |
void | forceExclusionGroup (ParamActive *active) const |
Enforce exclusion rules for the given set of parameter trials. More... | |
void | forceNoUse (ParamActive *active, int4 start, int4 stop) const |
Mark every trial above the first "definitely not used" as inactive. More... | |
void | forceInactiveChain (ParamActive *active, int4 maxchain, int4 start, int4 stop) const |
Enforce rules about chains of inactive slots. More... | |
void | calcDelay (void) |
Calculate the maximum heritage delay for any potential parameter in this list. | |
void | populateResolver (void) |
Build the ParamEntry resolver maps. More... | |
Protected Attributes inherited from ParamListStandard | |
int4 | numgroup |
Number of groups in this parameter convention. | |
int4 | maxdelay |
Maximum heritage delay across all parameters. | |
int4 | pointermax |
If non-zero, maximum size of a data-type before converting to a pointer. | |
bool | thisbeforeret |
Does a this parameter come before a hidden return parameter. | |
int4 | nonfloatgroup |
Group of first entry which is not marked float. | |
list< ParamEntry > | entry |
The ordered list of parameter entries. | |
vector< ParamEntryResolver * > | resolverMap |
Map from space id to resolver. | |
AddrSpace * | spacebase |
Address space containing relative offset parameters. | |
An unstructured model for passing input parameters to a function.
This is the register model, meaning a collection of registers, any of which can be used to pass a parameter. This is nearly identical to ParamListStandard, but rules banning holes are not enforced, any subset of the resource list can be used. This makes sense for executables where parameters follow no conventions or only loose conventions. The assignMap() method may make less sense in this scenario.
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virtual |
Given an unordered list of storage locations, calculate a function prototype.
A list of input (or output) trials is given, which may have holes, invalid inputs etc. Decide on the formal ordered parameter list. Trials within the ParamActive are added, removed, or reordered as needed.
active | is the given list of trials |
Reimplemented from ParamListStandard.