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Code Issues Releases Wiki Activity

Basic multi-entry merge capability

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This commit is contained in:
caheckman 2019-12-11 09:47:51 -05:00
parent 76d0f12bd3
commit b99772a784
8 changed files with 123 additions and 6 deletions
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26
Ghidra/Features/Decompiler/src/decompile/cpp/funcdata_varnode.cc
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@ -1010,6 +1010,32 @@ Symbol *Funcdata::linkSymbolReference(Varnode *vn)
return entry->getSymbol();
}
/// Look for Varnodes that are (should be) mapped to the given SymbolEntry and
/// add them to the end of the result list.
/// \param entry is the given SymbolEntry to match
/// \param res is the container holding the result list of matching Varnodes
void Funcdata::findLinkedVarnodes(SymbolEntry *entry,vector<Varnode *> res) const
{
if (entry->isDynamic()) {
DynamicHash dhash;
Varnode *vn = dhash.findVarnode(this,entry->getFirstUseAddress(),entry->getHash());
if (vn != (Varnode *)0)
res.push_back(vn);
}
else {
VarnodeLocSet::const_iterator iter = beginLoc(entry->getSize(),entry->getAddr());
VarnodeLocSet::const_iterator enditer = endLoc(entry->getSize(),entry->getAddr());
for(;iter!=enditer;++iter) {
Varnode *vn = *iter;
Address addr = vn->getUsePoint(*this);
if (entry->inUse(addr)) {
res.push_back(vn);
}
}
}
}
/// If a Symbol is already attached, no change is made. Otherwise a special \e dynamic Symbol is
/// created that is associated with the Varnode via a hash of its local data-flow (rather
/// than its storage address).