ghidra::ScopeInternal Class Reference

An in-memory implementation of the Scope interface. More...

#include <database.hh>

Inheritance diagram for ghidra::ScopeInternal:

Public Member Functions
	ScopeInternal (uint8 id, const string &nm, Architecture *g)
	Construct the Scope. More...
	ScopeInternal (uint8 id, const string &nm, Architecture *g, Scope *own)
	Construct as a cache.
virtual void	clear (void)
	Clear all symbols from this scope.
virtual void	categorySanity (void)
	Make sure Symbol categories are sane. More...
virtual void	clearCategory (int4 cat)
	Clear all symbols of the given category from this scope.
virtual void	clearUnlocked (void)
	Clear all unlocked symbols from this scope.
virtual void	clearUnlockedCategory (int4 cat)
	Clear unlocked symbols of the given category from this scope.
virtual void	adjustCaches (void)
	Let scopes internally adjust any caches. More...
virtual MapIterator	begin (void) const
	Beginning iterator to mapped SymbolEntrys.
virtual MapIterator	end (void) const
	Ending iterator to mapped SymbolEntrys.
virtual list< SymbolEntry >::const_iterator	beginDynamic (void) const
	Beginning iterator to dynamic SymbolEntrys.
virtual list< SymbolEntry >::const_iterator	endDynamic (void) const
	Ending iterator to dynamic SymbolEntrys.
virtual list< SymbolEntry >::iterator	beginDynamic (void)
	Beginning iterator to dynamic SymbolEntrys.
virtual list< SymbolEntry >::iterator	endDynamic (void)
	Ending iterator to dynamic SymbolEntrys.
virtual void	removeSymbolMappings (Symbol *symbol)
	Remove all SymbolEntrys from the given Symbol.
virtual void	removeSymbol (Symbol *symbol)
	Remove the given Symbol from this Scope.
virtual void	renameSymbol (Symbol *sym, const string &newname)
	Rename a Symbol within this Scope.
virtual void	retypeSymbol (Symbol *sym, Datatype *ct)
	Change the data-type of a Symbol within this Scope. More...
virtual void	setAttribute (Symbol *sym, uint4 attr)
	Set boolean Varnode properties on a Symbol.
virtual void	clearAttribute (Symbol *sym, uint4 attr)
	Clear boolean Varnode properties on a Symbol.
virtual void	setDisplayFormat (Symbol *sym, uint4 attr)
	Set the display format for a Symbol.
virtual SymbolEntry *	findAddr (const Address &addr, const Address &usepoint) const
	Find a Symbol at a given address and usepoint. More...
virtual SymbolEntry *	findContainer (const Address &addr, int4 size, const Address &usepoint) const
	Find the smallest Symbol containing the given memory range. More...
virtual SymbolEntry *	findClosestFit (const Address &addr, int4 size, const Address &usepoint) const
	Find Symbol which is the closest fit to the given memory range. More...
virtual Funcdata *	findFunction (const Address &addr) const
	Find the function starting at the given address. More...
virtual ExternRefSymbol *	findExternalRef (const Address &addr) const
	Find an external reference at the given address. More...
virtual LabSymbol *	findCodeLabel (const Address &addr) const
	Find a label Symbol at the given address. More...
virtual SymbolEntry *	findOverlap (const Address &addr, int4 size) const
	Find first Symbol overlapping the given memory range. More...
virtual void	findByName (const string &nm, vector< Symbol *> &res) const
	Find a Symbol by name within this Scope. More...
virtual bool	isNameUsed (const string &nm, const Scope *op2) const
	Check if the given name is occurs within the given scope path. More...
virtual Funcdata *	resolveExternalRefFunction (ExternRefSymbol *sym) const
	Convert an external reference to the referenced function. More...
virtual string	buildVariableName (const Address &addr, const Address &pc, Datatype *ct, int4 &index, uint4 flags) const
	Given an address and data-type, build a suitable generic symbol name. More...
virtual string	buildUndefinedName (void) const
	Build a formal undefined name, used internally when a Symbol is not given a name. More...
virtual string	makeNameUnique (const string &nm) const
	Produce a version of the given symbol name that won't collide with other names in this Scope. More...
virtual void	encode (Encoder &encoder) const
	Encode this as a <scope> element.
virtual void	decode (Decoder &decoder)
	Decode this Scope from a <scope> element.
virtual void	printEntries (ostream &s) const
	Dump a description of all SymbolEntry objects to a stream.
virtual int4	getCategorySize (int4 cat) const
	Get the number of Symbols in the given category. More...
virtual Symbol *	getCategorySymbol (int4 cat, int4 ind) const
	Retrieve a Symbol by index within a specific category. More...
virtual void	setCategory (Symbol *sym, int4 cat, int4 ind)
	Set the category and index for the given Symbol. More...
void	assignDefaultNames (int4 &base)
	Assign a default name (via buildVariableName) to any unnamed symbol. More...
set< Symbol * >::const_iterator	beginMultiEntry (void) const
	Start of symbols with more than one entry.
set< Symbol * >::const_iterator	endMultiEntry (void) const
	End of symbols with more than one entry.
Public Member Functions inherited from ghidra::Scope
	Scope (uint8 id, const string &nm, Architecture *g, Scope *own)
	Construct an empty scope, given a name and Architecture.
virtual	~Scope (void)
	Destructor.
virtual bool	inScope (const Address &addr, int4 size, const Address &usepoint) const
	Query if the given range is owned by this Scope. More...
virtual void	decodeWrappingAttributes (Decoder &decoder)
	Restore attributes for this Scope from wrapping element.
virtual SymbolEntry *	addSymbol (const string &nm, Datatype *ct, const Address &addr, const Address &usepoint)
	Add a new Symbol to this Scope, given a name, data-type, and a single mapping. More...
const string &	getName (void) const
	Get the name of the Scope.
const string &	getDisplayName (void) const
	Get name displayed in output.
uint8	getId (void) const
	Get the globally unique id.
bool	isGlobal (void) const
	Return true if this scope is global.
void	queryByName (const string &nm, vector< Symbol *> &res) const
	Look-up symbols by name. More...
Funcdata *	queryFunction (const string &nm) const
	Look-up a function by name. More...
SymbolEntry *	queryByAddr (const Address &addr, const Address &usepoint) const
	Get Symbol with matching address. More...
SymbolEntry *	queryContainer (const Address &addr, int4 size, const Address &usepoint) const
	Find the smallest containing Symbol. More...
SymbolEntry *	queryProperties (const Address &addr, int4 size, const Address &usepoint, uint4 &flags) const
	Find a Symbol or properties at the given address. More...
Funcdata *	queryFunction (const Address &addr) const
	Look-up a function by address. More...
Funcdata *	queryExternalRefFunction (const Address &addr) const
	Look-up a function thru an external reference. More...
LabSymbol *	queryCodeLabel (const Address &addr) const
	Look-up a code label by address. More...
Scope *	resolveScope (const string &nm, bool strategy) const
	Find a child Scope of this. More...
Scope *	discoverScope (const Address &addr, int4 sz, const Address &usepoint)
	Find the owning Scope of a given memory range. More...
ScopeMap::const_iterator	childrenBegin () const
	Beginning iterator of child scopes.
ScopeMap::const_iterator	childrenEnd () const
	Ending iterator of child scopes.
void	encodeRecursive (Encoder &encoder, bool onlyGlobal) const
	Encode all contained scopes to a stream. More...
void	overrideSizeLockType (Symbol *sym, Datatype *ct)
	Change the data-type of a Symbol that is sizelocked. More...
void	resetSizeLockType (Symbol *sym)
	Clear a Symbol's size-locked data-type. More...
void	setThisPointer (Symbol *sym, bool val)
	Toggle the given Symbol as the "this" pointer.
bool	isSubScope (const Scope *scp) const
	Is this a sub-scope of the given Scope. More...
string	getFullName (void) const
	Get the full name of this Scope.
void	getScopePath (vector< const Scope *> &vec) const
	Get the ordered list of scopes up to this. More...
const Scope *	findDistinguishingScope (const Scope *op2) const
	Find first ancestor of this not shared by given scope. More...
Architecture *	getArch (void) const
	Get the Architecture associated with this.
Scope *	getParent (void) const
	Get the parent Scope (or NULL if this is the global Scope)
Symbol *	addSymbol (const string &nm, Datatype *ct)
	Add a new Symbol without mapping it to an address. More...
SymbolEntry *	addMapPoint (Symbol *sym, const Address &addr, const Address &usepoint)
	Map a Symbol to a specific address. More...
Symbol *	addMapSym (Decoder &decoder)
	Parse a mapped Symbol from a <mapsym> element. More...
FunctionSymbol *	addFunction (const Address &addr, const string &nm)
	Create a function Symbol at the given address in this Scope. More...
ExternRefSymbol *	addExternalRef (const Address &addr, const Address &refaddr, const string &nm)
LabSymbol *	addCodeLabel (const Address &addr, const string &nm)
	Create a code label at the given address in this Scope. More...
Symbol *	addDynamicSymbol (const string &nm, Datatype *ct, const Address &caddr, uint8 hash)
	Create a dynamically mapped Symbol attached to a specific data-flow. More...
Symbol *	addEquateSymbol (const string &nm, uint4 format, uintb value, const Address &addr, uint8 hash)
	Create a symbol that forces display conversion on a constant. More...
Symbol *	addUnionFacetSymbol (const string &nm, Datatype *dt, int4 fieldNum, const Address &addr, uint8 hash)
	Create a symbol forcing a field interpretation for a specific access to a variable with union data-type. More...
string	buildDefaultName (Symbol *sym, int4 &base, Varnode *vn) const
	Create a default name for the given Symbol. More...
bool	isReadOnly (const Address &addr, int4 size, const Address &usepoint) const
	Is the given memory range marked as read-only. More...
void	printBounds (ostream &s) const
	Print a description of this Scope's owned memory ranges.

Protected Member Functions
virtual Scope *	buildSubScope (uint8 id, const string &nm)
	Build an unattached Scope to be associated as a sub-scope of this.
virtual void	addSymbolInternal (Symbol *sym)
	Put a Symbol into the name map. More...
virtual SymbolEntry *	addMapInternal (Symbol *sym, uint4 exfl, const Address &addr, int4 off, int4 sz, const RangeList &uselim)
	Create a new SymbolEntry for a Symbol given a memory range. More...
virtual SymbolEntry *	addDynamicMapInternal (Symbol *sym, uint4 exfl, uint8 hash, int4 off, int4 sz, const RangeList &uselim)
	Create a new SymbolEntry for a Symbol given a dynamic hash. More...
Protected Member Functions inherited from ghidra::Scope
const RangeList &	getRangeTree (void) const
	Access the address ranges owned by this Scope.
virtual void	restrictScope (Funcdata *f)
	Convert this to a local Scope. More...
virtual void	addRange (AddrSpace *spc, uintb first, uintb last)
	Add a memory range to the ownership of this Scope. More...
virtual void	removeRange (AddrSpace *spc, uintb first, uintb last)
	Remove a memory range from the ownership of this Scope. More...
SymbolEntry *	addMap (SymbolEntry &entry)
	Integrate a SymbolEntry into the range maps. More...
void	setSymbolId (Symbol *sym, uint8 id) const
	Adjust the id associated with a symbol.
void	setDisplayName (const string &nm)
	Change name displayed in output.

Protected Attributes
SymbolNameTree	nametree
	The set of Symbol objects, sorted by name.
vector< EntryMap * >	maptable
	Rangemaps of SymbolEntry, one map for each address space.
vector< vector< Symbol * > >	category
	References to Symbol objects organized by category.
list< SymbolEntry >	dynamicentry
	Dynamic symbol entries.
SymbolNameTree	multiEntrySet
	Set of symbols with multiple entries.
uint8	nextUniqueId
	Next available symbol id.
Protected Attributes inherited from ghidra::Scope
Architecture *	glb
	Architecture of this scope.
string	name
	Name of this scope.
string	displayName
	Name to display in output.
Funcdata *	fd
	(If non-null) the function which this is the local Scope for
uint8	uniqueId
	Unique id for the scope, for deduping scope names, assigning symbol ids.

Private Member Functions
void	decodeHole (Decoder &decoder)
	Parse a <hole> element describing boolean properties of a memory range. More...
void	decodeCollision (Decoder &decoder)
	Parse a <collision> element indicating a named symbol with no storage or data-type info. More...
void	insertNameTree (Symbol *sym)
	Insert a Symbol into the nametree. More...
SymbolNameTree::const_iterator	findFirstByName (const string &nm) const
	Find an iterator pointing to the first Symbol in the ordering with a given name. More...

Additional Inherited Members
Static Protected Member Functions inherited from ghidra::Scope
static const Scope *	stackAddr (const Scope *scope1, const Scope *scope2, const Address &addr, const Address &usepoint, SymbolEntry **addrmatch)
	Query for Symbols starting at a given address, which match a given usepoint. More...
static const Scope *	stackContainer (const Scope *scope1, const Scope *scope2, const Address &addr, int4 size, const Address &usepoint, SymbolEntry **addrmatch)
static const Scope *	stackClosestFit (const Scope *scope1, const Scope *scope2, const Address &addr, int4 size, const Address &usepoint, SymbolEntry **addrmatch)
static const Scope *	stackFunction (const Scope *scope1, const Scope *scope2, const Address &addr, Funcdata **addrmatch)
static const Scope *	stackExternalRef (const Scope *scope1, const Scope *scope2, const Address &addr, ExternRefSymbol **addrmatch)
static const Scope *	stackCodeLabel (const Scope *scope1, const Scope *scope2, const Address &addr, LabSymbol **addrmatch)

Detailed Description

An in-memory implementation of the Scope interface.

This can act as a stand-alone Scope object or serve as an in-memory cache for another implementation. This implements a nametree, which is a a set of Symbol objects (the set owns the Symbol objects). It also implements a maptable, which is a list of rangemaps that own the SymbolEntry objects.

Constructor & Destructor Documentation

ScopeInternal()

ghidra::ScopeInternal::ScopeInternal	(	uint8	id,
		const string &	nm,
		Architecture *	g
	)

Construct the Scope.

Parameters

id	is the globally unique id associated with the scope
nm	is the name of the Scope
g	is the Architecture it belongs to

References maptable, nextUniqueId, and ghidra::AddrSpaceManager::numSpaces().

Member Function Documentation

addDynamicMapInternal()

SymbolEntry * ghidra::ScopeInternal::addDynamicMapInternal ( Symbol *  sym, uint4  exfl, uint8  hash, int4  off, int4  sz, const RangeList &  uselim  )

protectedvirtual

Create a new SymbolEntry for a Symbol given a dynamic hash.

The SymbolEntry is specified in terms of a hash and usepoint, which describe how to find the temporary Varnode holding the symbol value.

Parameters

sym	is the given Symbol being mapped
exfl	are any boolean Varnode properties
hash	is the given dynamic hash
off	is the byte offset of the new SymbolEntry (relative to the whole Symbol)
sz	is the number of bytes occupied by the Varnode
uselim	is the given usepoint

Returns

the newly created SymbolEntry

Implements ghidra::Scope.

References ghidra::Datatype::getSize(), ghidra::Symbol::mapentry, ghidra::Symbol::type, and ghidra::Symbol::wholeCount.

addMapInternal()

SymbolEntry * ghidra::ScopeInternal::addMapInternal ( Symbol *  sym, uint4  exfl, const Address &  addr, int4  off, int4  sz, const RangeList &  uselim  )

protectedvirtual

Create a new SymbolEntry for a Symbol given a memory range.

The SymbolEntry is specified in terms of a memory range and usepoint

Parameters

sym	is the given Symbol being mapped
exfl	are any boolean Varnode properties specific to the memory range
addr	is the starting address of the given memory range
off	is the byte offset of the new SymbolEntry (relative to the whole Symbol)
sz	is the number of bytes in the range
uselim	is the given usepoint (which may be invalid)

Returns

the newly created SymbolEntry

Implements ghidra::Scope.

Reimplemented in ghidra::ScopeGhidraNamespace.

References ghidra::AddrSpace::getIndex(), ghidra::Symbol::getName(), ghidra::Address::getOffset(), ghidra::Datatype::getSize(), ghidra::Address::getSpace(), ghidra::rangemap< _recordtype >::insert(), ghidra::Symbol::mapentry, ghidra::Symbol::type, and ghidra::Symbol::wholeCount.

Referenced by ghidra::ScopeGhidraNamespace::addMapInternal().

addSymbolInternal()

void ghidra::ScopeInternal::addSymbolInternal ( Symbol *  sym )

protectedvirtual

Put a Symbol into the name map.

Parameters

sym	is the preconstructed Symbol

Implements ghidra::Scope.

References ghidra::Symbol::category, ghidra::Symbol::catindex, ghidra::Symbol::displayName, ghidra::Symbol::getName(), ghidra::Datatype::getSize(), ghidra::Symbol::getType(), ghidra::Symbol::name, and ghidra::Symbol::symbolId.

adjustCaches()

void ghidra::ScopeInternal::adjustCaches ( void  )

virtual

Let scopes internally adjust any caches.

This is called once after Architecture configuration is complete.

Implements ghidra::Scope.

References ghidra::Scope::glb, maptable, and ghidra::AddrSpaceManager::numSpaces().

Referenced by ghidra::ScopeGhidra::adjustCaches().

assignDefaultNames()

void ghidra::ScopeInternal::assignDefaultNames

(

int4 &

base

)

Assign a default name (via buildVariableName) to any unnamed symbol.

Run through all the symbols whose name is undefined. Build a variable name, uniquify it, and rename the variable.

Parameters

base	is the base index to start at for generating generic names

References ghidra::Scope::buildDefaultName(), ghidra::Symbol::isNameUndefined(), nametree, and renameSymbol().

Referenced by ghidra::ActionNameVars::apply().

buildUndefinedName()

string ghidra::ScopeInternal::buildUndefinedName ( void  ) const

virtual

Build a formal undefined name, used internally when a Symbol is not given a name.

Returns

a special internal name that won't collide with other names in this Scope

Implements ghidra::Scope.

References nametree.

Referenced by ghidra::ScopeGhidra::buildUndefinedName(), clearUnlocked(), and clearUnlockedCategory().

buildVariableName()

string ghidra::ScopeInternal::buildVariableName ( const Address &  addr, const Address &  pc, Datatype *  ct, int4 &  index, uint4  flags  ) const

virtual

Given an address and data-type, build a suitable generic symbol name.

Parameters

addr	is the given address
pc	is the address at which the name is getting used
ct	is a data-type used to inform the name
index	is a reference to an index used to make the name unique, which will be updated
flags	are boolean properties of the variable we need the name for

Returns

the new variable name

Implements ghidra::Scope.

Reimplemented in ghidra::ScopeLocal.

References ghidra::Varnode::addrtied, ghidra::AddrSpace::byteToAddress(), findFirstByName(), ghidra::Address::getAddrSize(), ghidra::AddrSpace::getName(), ghidra::Address::getOffset(), ghidra::Translate::getRegisterName(), ghidra::Datatype::getSize(), ghidra::Address::getSpace(), ghidra::AddrSpace::getWordSize(), ghidra::Scope::glb, ghidra::Varnode::indirect_creation, ghidra::Varnode::input, makeNameUnique(), nametree, ghidra::Varnode::persist, ghidra::Datatype::printNameBase(), ghidra::Varnode::return_address, ghidra::Architecture::translate, and ghidra::Varnode::unaffected.

Referenced by ghidra::ScopeGhidra::buildVariableName(), and ghidra::ScopeLocal::buildVariableName().

categorySanity()

void ghidra::ScopeInternal::categorySanity ( void  )

virtual

Make sure Symbol categories are sane.

Look for NULL entries in the category tables. If there are, clear out the entire category, marking all symbols as uncategorized

References category, ghidra::Symbol::no_category, and setCategory().

Referenced by decode().

decodeCollision()

void ghidra::ScopeInternal::decodeCollision ( Decoder &  decoder )

private

Parse a <collision> element indicating a named symbol with no storage or data-type info.

Let the decompiler know that a name is occupied within the scope for isNameUsed queries, without specifying storage and data-type information about the symbol. This is modeled currently by creating an unmapped symbol.

Parameters

decoder

is the stream decoder

References ghidra::Scope::addSymbol(), ghidra::Decoder::closeElement(), findFirstByName(), ghidra::TypeFactory::getBase(), ghidra::Scope::glb, nametree, ghidra::Decoder::openElement(), ghidra::Decoder::readString(), ghidra::TYPE_INT, and ghidra::Architecture::types.

Referenced by decode().

decodeHole()

void ghidra::ScopeInternal::decodeHole ( Decoder &  decoder )

private

Parse a <hole> element describing boolean properties of a memory range.

The <scope> element is allowed to contain <hole> elements, which are really descriptions of memory globally. This method parses them and passes the info to the Database object.

Parameters

decoder

is the stream decoder

References ghidra::Decoder::closeElement(), ghidra::Range::decodeFromAttributes(), ghidra::Decoder::getNextAttributeId(), ghidra::Scope::glb, ghidra::Decoder::openElement(), ghidra::Decoder::readBool(), ghidra::Varnode::readonly, ghidra::Decoder::rewindAttributes(), ghidra::Database::setPropertyRange(), ghidra::Architecture::symboltab, and ghidra::Varnode::volatil.

Referenced by decode().

findAddr()

SymbolEntry * ghidra::ScopeInternal::findAddr ( const Address &  addr, const Address &  usepoint  ) const

virtual

Find a Symbol at a given address and usepoint.

Parameters

addr	is the given address
usepoint	is the point at which the Symbol is accessed (may be invalid)

Returns

the matching SymbolEntry or NULL

Implements ghidra::Scope.

References ghidra::rangemap< _recordtype >::find(), ghidra::SymbolEntry::getAddr(), ghidra::AddrSpace::getIndex(), ghidra::Address::getOffset(), ghidra::Address::getSpace(), ghidra::SymbolEntry::inUse(), ghidra::Address::isInvalid(), and maptable.

Referenced by ghidra::ScopeGhidra::findAddr(), and ghidra::ScopeGhidra::findCodeLabel().

findByName()

void ghidra::ScopeInternal::findByName ( const string &  nm, vector< Symbol *> &  res  ) const

virtual

Find a Symbol by name within this Scope.

If there are multiple Symbols with the same name, all are passed back.

Parameters

nm	is the name to search for
res	will contain any matching Symbols

Implements ghidra::Scope.

References findFirstByName(), ghidra::Symbol::name, and nametree.

findClosestFit()

SymbolEntry * ghidra::ScopeInternal::findClosestFit ( const Address &  addr, int4  size, const Address &  usepoint  ) const

virtual

Find Symbol which is the closest fit to the given memory range.

Parameters

addr	is the starting address of the given memory range
size	is the number of bytes in the range
usepoint	is the point at which the Symbol is accessed (may be invalid)

Returns

the matching SymbolEntry or NULL

Implements ghidra::Scope.

References ghidra::rangemap< _recordtype >::find(), ghidra::AddrSpace::getIndex(), ghidra::SymbolEntry::getLast(), ghidra::Address::getOffset(), ghidra::SymbolEntry::getSize(), ghidra::Address::getSpace(), ghidra::SymbolEntry::inUse(), ghidra::Address::isInvalid(), and maptable.

Referenced by ghidra::ScopeGhidra::findContainer().

findCodeLabel()

LabSymbol * ghidra::ScopeInternal::findCodeLabel ( const Address &  addr ) const

virtual

Find a label Symbol at the given address.

Parameters

addr	is the given address

Returns

the matching LabSymbol or NULL

Implements ghidra::Scope.

References ghidra::rangemap< _recordtype >::find(), ghidra::SymbolEntry::getAddr(), ghidra::AddrSpace::getIndex(), ghidra::Address::getOffset(), ghidra::Address::getSpace(), ghidra::SymbolEntry::getSymbol(), ghidra::SymbolEntry::inUse(), and maptable.

Referenced by ghidra::ScopeGhidra::findCodeLabel().

findContainer()

SymbolEntry * ghidra::ScopeInternal::findContainer ( const Address &  addr, int4  size, const Address &  usepoint  ) const

virtual

Find the smallest Symbol containing the given memory range.

Parameters

addr	is the starting address of the given memory range
size	is the number of bytes in the range
usepoint	is the point at which the Symbol is accessed (may be invalid)

Returns

the matching SymbolEntry or NULL

Implements ghidra::Scope.

References end(), ghidra::rangemap< _recordtype >::find(), ghidra::AddrSpace::getIndex(), ghidra::SymbolEntry::getLast(), ghidra::Address::getOffset(), ghidra::SymbolEntry::getSize(), ghidra::Address::getSpace(), ghidra::SymbolEntry::inUse(), ghidra::Address::isInvalid(), and maptable.

Referenced by ghidra::ScopeGhidra::findAddr(), ghidra::ScopeGhidra::findExternalRef(), and ghidra::ScopeGhidra::findFunction().

findExternalRef()

ExternRefSymbol * ghidra::ScopeInternal::findExternalRef ( const Address &  addr ) const

virtual

Find an external reference at the given address.

Parameters

addr	is the given address

Returns

the matching ExternRefSymbol or NULL

Implements ghidra::Scope.

References ghidra::rangemap< _recordtype >::find(), ghidra::SymbolEntry::getAddr(), ghidra::AddrSpace::getIndex(), ghidra::Address::getOffset(), ghidra::Address::getSpace(), ghidra::SymbolEntry::getSymbol(), and maptable.

Referenced by ghidra::ScopeGhidra::findExternalRef().

findFirstByName()

SymbolNameTree::const_iterator ghidra::ScopeInternal::findFirstByName ( const string &  nm ) const

private

Find an iterator pointing to the first Symbol in the ordering with a given name.

Parameters

nm	is the name to search for

Returns

iterator pointing to the first Symbol or nametree.end() if there is no matching Symbol

References nametree.

Referenced by buildVariableName(), decodeCollision(), findByName(), and makeNameUnique().

findFunction()

Funcdata * ghidra::ScopeInternal::findFunction ( const Address &  addr ) const

virtual

Find the function starting at the given address.

Parameters

addr	is the given starting address

Returns

the matching Funcdata object or NULL

Implements ghidra::Scope.

References ghidra::rangemap< _recordtype >::find(), ghidra::SymbolEntry::getAddr(), ghidra::FunctionSymbol::getFunction(), ghidra::AddrSpace::getIndex(), ghidra::Address::getOffset(), ghidra::Address::getSpace(), ghidra::SymbolEntry::getSymbol(), and maptable.

Referenced by ghidra::ScopeGhidra::findFunction(), and ghidra::ScopeGhidra::resolveExternalRefFunction().

findOverlap()

SymbolEntry * ghidra::ScopeInternal::findOverlap ( const Address &  addr, int4  size  ) const

virtual

Find first Symbol overlapping the given memory range.

Parameters

addr	is the starting address of the given range
size	is the number of bytes in the range

Returns

an overlapping SymbolEntry or NULL if none exists

Implements ghidra::Scope.

References ghidra::rangemap< _recordtype >::end(), ghidra::rangemap< _recordtype >::find_overlap(), ghidra::AddrSpace::getIndex(), ghidra::Address::getOffset(), ghidra::Address::getSpace(), and maptable.

Referenced by ghidra::ScopeLocal::adjustFit(), ghidra::ScopeLocal::markNotMapped(), and ghidra::Funcdata::syncVarnodesWithSymbols().

getCategorySize()

int4 ghidra::ScopeInternal::getCategorySize ( int4  cat ) const

virtual

Get the number of Symbols in the given category.

Parameters

cat	is the Symbol category

Returns

the number in that category

Implements ghidra::Scope.

References category.

getCategorySymbol()

Symbol * ghidra::ScopeInternal::getCategorySymbol ( int4  cat, int4  ind  ) const

virtual

Retrieve a Symbol by index within a specific category.

Parameters

cat	is the Symbol category
ind	is the index (within the category) of the Symbol

Returns

the indicated Symbol or NULL if no Symbol with that index exists

Implements ghidra::Scope.

References category.

insertNameTree()

void ghidra::ScopeInternal::insertNameTree ( Symbol *  sym )

private

Insert a Symbol into the nametree.

Duplicate symbol names are allowed for by establishing a deduplication id for the Symbol.

Parameters

sym	is the Symbol to insert

References ghidra::Symbol::name, ghidra::Symbol::nameDedup, and nametree.

Referenced by renameSymbol().

isNameUsed()

bool ghidra::ScopeInternal::isNameUsed ( const string &  nm, const Scope *  op2  ) const

virtual

Check if the given name is occurs within the given scope path.

Test for the presence of a symbol with the given name in either this scope or an ancestor scope up to but not including the given terminating scope. If the name is used true is returned.

Parameters

nm	is the given name to test
op2	is the terminating ancestor scope (or null)

Implements ghidra::Scope.

Reimplemented in ghidra::ScopeGhidraNamespace.

References ghidra::Scope::getParent(), ghidra::Scope::isNameUsed(), and nametree.

makeNameUnique()

string ghidra::ScopeInternal::makeNameUnique ( const string &  nm ) const

virtual

Produce a version of the given symbol name that won't collide with other names in this Scope.

Parameters

nm	is the given name

Returns

return a unique version of the name

Implements ghidra::Scope.

References findFirstByName(), ghidra::Symbol::getName(), ghidra::Symbol::nameDedup, and nametree.

Referenced by ghidra::ScopeLocal::buildVariableName(), buildVariableName(), ghidra::ActionNameVars::lookForBadJumpTables(), and ghidra::ActionNameVars::lookForFuncParamNames().

resolveExternalRefFunction()

Funcdata * ghidra::ScopeInternal::resolveExternalRefFunction ( ExternRefSymbol *  sym ) const

virtual

Convert an external reference to the referenced function.

Parameters

sym	is the Symbol marking the external reference

Returns

the underlying Funcdata object or NULL if none exists

Implements ghidra::Scope.

References ghidra::ExternRefSymbol::getRefAddr(), and ghidra::Scope::queryFunction().

retypeSymbol()

void ghidra::ScopeInternal::retypeSymbol ( Symbol *  sym, Datatype *  ct  )

virtual

Change the data-type of a Symbol within this Scope.

If the size of the Symbol changes, any mapping (SymbolEntry) is adjusted

Parameters

sym	is the given Symbol
ct	is the new data-type

Implements ghidra::Scope.

References ghidra::Scope::addMapPoint(), ghidra::Symbol::checkSizeTypeLock(), ghidra::Datatype::getSize(), ghidra::Datatype::getStripped(), ghidra::Datatype::hasStripped(), ghidra::Symbol::mapentry, maptable, ghidra::Symbol::name, ghidra::Symbol::type, and ghidra::Symbol::wholeCount.

Referenced by ghidra::Funcdata::attemptDynamicMappingLate().

setCategory()

void ghidra::ScopeInternal::setCategory ( Symbol *  sym, int4  cat, int4  ind  )

virtual

Set the category and index for the given Symbol.

Parameters

sym	is the given Symbol
cat	is the category to set for the Symbol
ind	is the index position to set (within the category)

Implements ghidra::Scope.

References ghidra::Symbol::category, category, and ghidra::Symbol::catindex.

Referenced by categorySanity().

---

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

• database.hh
• database.cc