yetangitu/ghidra
1
0
Fork 0
mirror of https://github.com/NationalSecurityAgency/ghidra.git synced 2025-10-04 02:09:44 +02:00
Code Issues Releases Wiki Activity

finalizing HighVariable from symbols

Browse source
This commit is contained in:
caheckman 2019-11-01 12:29:47 -04:00
parent cbbfc9ca18
commit cfc1177ac1
5 changed files with 30 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

17
Ghidra/Features/Decompiler/src/decompile/cpp/funcdata_varnode.cc
View file

@ -803,15 +803,16 @@ void Funcdata::calcNZMask(void)
}
}
/// \brief Update Varnode boolean properties based on (new) Symbol information
/// \brief Update Varnode properties based on (new) Symbol information
///
/// Boolean properties \b addrtied, \b addrforce, \b auto_live, and \b nolocalalias
/// for Varnodes are updated based on new Symbol information they map to.
/// The caller can elect to update data-type information as well.
/// The caller can elect to update data-type information as well, where Varnodes
/// and their associated HighVariables have their data-type finalized based symbols.
/// \param lm is the Symbol scope within which to search for mapped Varnodes
/// \param typesyes is \b true if the caller wants to update data-types
/// \return \b true if any Varnode was updated
bool Funcdata::updateFlags(const ScopeLocal *lm,bool typesyes)
bool Funcdata::syncVarnodesWithSymbols(const ScopeLocal *lm,bool typesyes)
{
bool updateoccurred = false;
@ -859,13 +860,13 @@ bool Funcdata::updateFlags(const ScopeLocal *lm,bool typesyes)
else
flags = 0;
}
if (updateFlags(iter,flags,ct))
if (syncVarnodesWithSymbol(iter,flags,ct))
updateoccurred = true;
}
return updateoccurred;
}
/// \brief Update boolean properties (and the data-type) for a set of Varnodes
/// \brief Update properties (and the data-type) for a set of Varnodes associated with one Symbol
///
/// The set of Varnodes with the same size and address all have their boolean properties
/// updated to the given values. The set is specified by providing an iterator reference
@ -882,7 +883,7 @@ bool Funcdata::updateFlags(const ScopeLocal *lm,bool typesyes)
/// \param flags holds the new set of boolean properties
/// \param ct is the given data-type to set (or NULL)
/// \return \b true if at least one Varnode was modified
bool Funcdata::updateFlags(VarnodeLocSet::const_iterator &iter,uint4 flags,Datatype *ct)
bool Funcdata::syncVarnodesWithSymbol(VarnodeLocSet::const_iterator &iter,uint4 flags,Datatype *ct)
{
VarnodeLocSet::const_iterator enditer;
@ -914,9 +915,11 @@ bool Funcdata::updateFlags(VarnodeLocSet::const_iterator &iter,uint4 flags,Datat
vn->setFlags(flags);
vn->clearFlags((~flags)&mask);
}
if (ct != (Datatype *)0)
if (ct != (Datatype *)0) {
if (vn->updateType(ct,false,false))
updateoccurred = true;
vn->getHigh()->finalizeDatatype(ct); // Permanently set the data-type on the HighVariable
}
} while(iter != enditer);
return updateoccurred;
}